./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product26.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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/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 e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 --- 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 16:00:18,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:00:18,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:00:18,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:00:18,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:00:18,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:00:18,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:00:18,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:00:18,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:00:18,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:00:18,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:00:18,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:00:18,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:00:18,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:00:18,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:00:18,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:00:18,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:00:18,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:00:18,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:00:18,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:00:18,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:00:18,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:00:18,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:00:18,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:00:18,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:00:18,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:00:18,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:00:18,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:00:18,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:00:18,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:00:18,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:00:18,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:00:18,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:00:18,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:00:18,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:00:18,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:00:18,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:00:18,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:00:18,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:00:18,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:00:18,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:00:18,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:00:18,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:00:18,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:00:18,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:00:18,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:00:18,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:00:18,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:00:18,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:00:18,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:00:18,297 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:00:18,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:00:18,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:00:18,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:00:18,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:00:18,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:00:18,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:00:18,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:00:18,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:00:18,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:00:18,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:00:18,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:00:18,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:00:18,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:00:18,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:00:18,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:00:18,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:00:18,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:00:18,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:00:18,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:00:18,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:00:18,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:00:18,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:00:18,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:00:18,302 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:00:18,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:00:18,303 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:00:18,303 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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 [2022-12-13 16:00:18,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:00:18,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:00:18,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:00:18,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:00:18,533 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:00:18,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-12-13 16:00:21,090 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:00:21,294 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:00:21,295 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-12-13 16:00:21,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/data/a75c8ffb5/3d266e42be3245d9bac16067283dddab/FLAGaaa6f3c3f [2022-12-13 16:00:21,318 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/data/a75c8ffb5/3d266e42be3245d9bac16067283dddab [2022-12-13 16:00:21,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:00:21,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:00:21,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:00:21,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:00:21,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:00:21,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71022b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21, skipping insertion in model container [2022-12-13 16:00:21,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:00:21,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:00:21,595 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,597 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,705 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,707 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,708 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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-12-13 16:00:21,740 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,746 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,746 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,755 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,756 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:00:21,766 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:00:21,788 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,789 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,791 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,819 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,820 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,821 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_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-12-13 16:00:21,827 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,828 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,829 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,830 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,833 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,834 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:00:21,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:00:21,881 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:00:21,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21 WrapperNode [2022-12-13 16:00:21,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:00:21,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:00:21,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:00:21,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:00:21,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,951 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1084 [2022-12-13 16:00:21,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:00:21,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:00:21,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:00:21,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:00:21,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:21,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:22,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:00:22,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:00:22,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:00:22,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:00:22,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (1/1) ... [2022-12-13 16:00:22,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:00:22,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:22,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:00:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:00:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-13 16:00:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-13 16:00:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 16:00:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 16:00:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 16:00:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 16:00:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 16:00:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 16:00:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 16:00:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 16:00:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 16:00:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 16:00:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 16:00:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 16:00:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 16:00:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 16:00:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 16:00:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 16:00:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 16:00:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 16:00:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 16:00:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 16:00:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 16:00:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 16:00:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 16:00:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-13 16:00:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-13 16:00:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 16:00:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 16:00:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:00:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-13 16:00:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-13 16:00:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 16:00:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 16:00:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 16:00:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 16:00:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 16:00:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 16:00:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 16:00:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 16:00:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 16:00:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 16:00:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 16:00:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 16:00:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 16:00:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 16:00:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 16:00:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 16:00:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:00:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 16:00:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 16:00:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 16:00:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 16:00:22,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:00:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:00:22,223 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:00:22,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:00:22,834 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:00:22,842 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:00:22,842 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:00:22,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:00:22 BoogieIcfgContainer [2022-12-13 16:00:22,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:00:22,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:00:22,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:00:22,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:00:22,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:00:21" (1/3) ... [2022-12-13 16:00:22,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24950b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:00:22, skipping insertion in model container [2022-12-13 16:00:22,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:00:21" (2/3) ... [2022-12-13 16:00:22,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24950b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:00:22, skipping insertion in model container [2022-12-13 16:00:22,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:00:22" (3/3) ... [2022-12-13 16:00:22,850 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2022-12-13 16:00:22,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:00:22,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:00:22,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:00:22,910 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;@3e24274c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:00:22,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:00:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-13 16:00:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 16:00:22,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:22,932 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:22,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash 600490209, now seen corresponding path program 1 times [2022-12-13 16:00:22,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:22,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277388164] [2022-12-13 16:00:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:00:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:00:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:00:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 16:00:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:00:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:00:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 16:00:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:00:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:00:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 16:00:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 16:00:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 16:00:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 16:00:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 16:00:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:00:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:00:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 16:00:23,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:23,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277388164] [2022-12-13 16:00:23,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277388164] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:23,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735916550] [2022-12-13 16:00:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:23,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:23,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:23,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:00:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:23,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:00:23,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-13 16:00:23,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:00:23,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735916550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:23,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:00:23,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 16:00:23,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408182469] [2022-12-13 16:00:23,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:23,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:00:23,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:23,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:00:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:00:23,803 INFO L87 Difference]: Start difference. First operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:23,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:23,859 INFO L93 Difference]: Finished difference Result 626 states and 936 transitions. [2022-12-13 16:00:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:00:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2022-12-13 16:00:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:23,879 INFO L225 Difference]: With dead ends: 626 [2022-12-13 16:00:23,879 INFO L226 Difference]: Without dead ends: 405 [2022-12-13 16:00:23,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 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 16:00:23,888 INFO L413 NwaCegarLoop]: 623 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, 623 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 16:00:23,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:00:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-12-13 16:00:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-12-13 16:00:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 313 states have (on average 1.5463258785942493) internal successors, (484), 317 states have internal predecessors, (484), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 16:00:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 615 transitions. [2022-12-13 16:00:23,952 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 615 transitions. Word has length 142 [2022-12-13 16:00:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:23,953 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 615 transitions. [2022-12-13 16:00:23,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 615 transitions. [2022-12-13 16:00:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 16:00:23,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:23,961 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:23,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:00:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 16:00:24,162 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:24,163 INFO L85 PathProgramCache]: Analyzing trace with hash -221791313, now seen corresponding path program 1 times [2022-12-13 16:00:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:24,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750857652] [2022-12-13 16:00:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:00:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:00:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:00:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 16:00:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 16:00:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:00:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 16:00:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:00:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:00:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:00:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:00:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:00:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:00:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:00:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:00:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:00:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 16:00:24,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:24,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750857652] [2022-12-13 16:00:24,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750857652] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:24,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358935816] [2022-12-13 16:00:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:24,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:24,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:24,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:24,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:00:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:24,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:00:24,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-13 16:00:24,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:00:24,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358935816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:24,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:00:24,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 16:00:24,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769777117] [2022-12-13 16:00:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:24,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:00:24,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:24,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:00:24,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:00:24,722 INFO L87 Difference]: Start difference. First operand 405 states and 615 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:24,762 INFO L93 Difference]: Finished difference Result 616 states and 914 transitions. [2022-12-13 16:00:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:00:24,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2022-12-13 16:00:24,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:24,766 INFO L225 Difference]: With dead ends: 616 [2022-12-13 16:00:24,766 INFO L226 Difference]: Without dead ends: 408 [2022-12-13 16:00:24,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:00:24,769 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1224 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 16:00:24,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:00:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-12-13 16:00:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2022-12-13 16:00:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 315 states have (on average 1.542857142857143) internal successors, (486), 319 states have internal predecessors, (486), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 16:00:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 617 transitions. [2022-12-13 16:00:24,794 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 617 transitions. Word has length 143 [2022-12-13 16:00:24,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:24,794 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 617 transitions. [2022-12-13 16:00:24,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:24,794 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 617 transitions. [2022-12-13 16:00:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 16:00:24,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:24,798 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:24,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:00:24,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:24,999 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:24,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash -848256898, now seen corresponding path program 1 times [2022-12-13 16:00:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:24,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554477082] [2022-12-13 16:00:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:00:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:00:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:00:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 16:00:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:00:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 16:00:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 16:00:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:00:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:00:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:00:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:00:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:00:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:00:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:00:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:25,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554477082] [2022-12-13 16:00:25,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554477082] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:25,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49605497] [2022-12-13 16:00:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:25,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:25,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:25,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:00:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:00:25,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 16:00:25,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:00:25,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49605497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:25,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:00:25,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 16:00:25,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556559810] [2022-12-13 16:00:25,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:25,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:00:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:25,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:00:25,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:00:25,457 INFO L87 Difference]: Start difference. First operand 407 states and 617 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:25,483 INFO L93 Difference]: Finished difference Result 867 states and 1334 transitions. [2022-12-13 16:00:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:00:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-12-13 16:00:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:25,486 INFO L225 Difference]: With dead ends: 867 [2022-12-13 16:00:25,486 INFO L226 Difference]: Without dead ends: 487 [2022-12-13 16:00:25,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:00:25,488 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 142 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:25,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1206 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:00:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-12-13 16:00:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 479. [2022-12-13 16:00:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 373 states have (on average 1.5630026809651474) internal successors, (583), 377 states have internal predecessors, (583), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-12-13 16:00:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 742 transitions. [2022-12-13 16:00:25,505 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 742 transitions. Word has length 133 [2022-12-13 16:00:25,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:25,505 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 742 transitions. [2022-12-13 16:00:25,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 742 transitions. [2022-12-13 16:00:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 16:00:25,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:25,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:25,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 16:00:25,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:25,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:25,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:25,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2117883540, now seen corresponding path program 1 times [2022-12-13 16:00:25,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:25,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013340478] [2022-12-13 16:00:25,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:25,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 16:00:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 16:00:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 16:00:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 16:00:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 16:00:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:00:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:00:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 16:00:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:00:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 16:00:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:00:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:00:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:00:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:00:25,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013340478] [2022-12-13 16:00:25,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013340478] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:25,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824566961] [2022-12-13 16:00:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:25,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:25,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:25,920 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:25,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:00:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:00:26,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 16:00:26,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:00:26,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824566961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:26,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:00:26,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 16:00:26,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538665727] [2022-12-13 16:00:26,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:00:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:00:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:00:26,169 INFO L87 Difference]: Start difference. First operand 479 states and 742 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:26,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:26,246 INFO L93 Difference]: Finished difference Result 949 states and 1474 transitions. [2022-12-13 16:00:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:00:26,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2022-12-13 16:00:26,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:26,250 INFO L225 Difference]: With dead ends: 949 [2022-12-13 16:00:26,250 INFO L226 Difference]: Without dead ends: 481 [2022-12-13 16:00:26,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:26,253 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 160 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2241 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 16:00:26,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2241 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:00:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-12-13 16:00:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-12-13 16:00:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 374 states have (on average 1.5614973262032086) internal successors, (584), 379 states have internal predecessors, (584), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2022-12-13 16:00:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 745 transitions. [2022-12-13 16:00:26,279 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 745 transitions. Word has length 134 [2022-12-13 16:00:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:26,280 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 745 transitions. [2022-12-13 16:00:26,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 745 transitions. [2022-12-13 16:00:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 16:00:26,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:26,284 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 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 16:00:26,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 16:00:26,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:26,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:26,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:26,485 INFO L85 PathProgramCache]: Analyzing trace with hash -8021744, now seen corresponding path program 1 times [2022-12-13 16:00:26,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:26,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467240293] [2022-12-13 16:00:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:26,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 16:00:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:00:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 16:00:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 16:00:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:00:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:00:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 16:00:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 16:00:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 16:00:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:00:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:00:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 16:00:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:00:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:00:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 16:00:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467240293] [2022-12-13 16:00:26,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467240293] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227049375] [2022-12-13 16:00:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:26,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:26,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:26,720 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:26,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 16:00:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:26,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:00:26,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 16:00:27,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:00:27,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227049375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:27,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:00:27,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 16:00:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86859239] [2022-12-13 16:00:27,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:00:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:27,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:00:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:00:27,022 INFO L87 Difference]: Start difference. First operand 481 states and 745 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 16:00:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:27,085 INFO L93 Difference]: Finished difference Result 951 states and 1479 transitions. [2022-12-13 16:00:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:00:27,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2022-12-13 16:00:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:27,088 INFO L225 Difference]: With dead ends: 951 [2022-12-13 16:00:27,088 INFO L226 Difference]: Without dead ends: 483 [2022-12-13 16:00:27,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:00:27,090 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 159 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:27,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2230 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:00:27,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-12-13 16:00:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-12-13 16:00:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-12-13 16:00:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 751 transitions. [2022-12-13 16:00:27,111 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 751 transitions. Word has length 154 [2022-12-13 16:00:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:27,111 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 751 transitions. [2022-12-13 16:00:27,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 16:00:27,112 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 751 transitions. [2022-12-13 16:00:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-13 16:00:27,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:27,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:27,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 16:00:27,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:27,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 710296192, now seen corresponding path program 1 times [2022-12-13 16:00:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:27,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272998748] [2022-12-13 16:00:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:27,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 16:00:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 16:00:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 16:00:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:00:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:00:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 16:00:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 16:00:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:00:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:00:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 16:00:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:00:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:00:27,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:27,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272998748] [2022-12-13 16:00:27,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272998748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:27,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:27,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:00:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252387186] [2022-12-13 16:00:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:27,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:00:27,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:00:27,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:00:27,477 INFO L87 Difference]: Start difference. First operand 483 states and 751 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:29,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:29,592 INFO L93 Difference]: Finished difference Result 1137 states and 1794 transitions. [2022-12-13 16:00:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:00:29,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2022-12-13 16:00:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:29,598 INFO L225 Difference]: With dead ends: 1137 [2022-12-13 16:00:29,598 INFO L226 Difference]: Without dead ends: 677 [2022-12-13 16:00:29,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:00:29,600 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1503 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:29,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1248 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 16:00:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-12-13 16:00:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 483. [2022-12-13 16:00:29,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2022-12-13 16:00:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 750 transitions. [2022-12-13 16:00:29,639 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 750 transitions. Word has length 136 [2022-12-13 16:00:29,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:29,639 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 750 transitions. [2022-12-13 16:00:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 750 transitions. [2022-12-13 16:00:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 16:00:29,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:29,641 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:29,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:00:29,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1827459276, now seen corresponding path program 2 times [2022-12-13 16:00:29,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:29,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245362795] [2022-12-13 16:00:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 16:00:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:00:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:00:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:00:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 16:00:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:00:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:00:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 16:00:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:00:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:00:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:00:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 16:00:29,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:29,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245362795] [2022-12-13 16:00:29,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245362795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:29,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:29,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:00:29,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587859858] [2022-12-13 16:00:29,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:29,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:00:29,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:29,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:00:29,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:00:29,794 INFO L87 Difference]: Start difference. First operand 483 states and 750 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:31,642 INFO L93 Difference]: Finished difference Result 1139 states and 1797 transitions. [2022-12-13 16:00:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:00:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2022-12-13 16:00:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:31,646 INFO L225 Difference]: With dead ends: 1139 [2022-12-13 16:00:31,646 INFO L226 Difference]: Without dead ends: 679 [2022-12-13 16:00:31,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:00:31,648 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1515 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:31,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1248 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:00:31,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-12-13 16:00:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-12-13 16:00:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2022-12-13 16:00:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 753 transitions. [2022-12-13 16:00:31,675 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 753 transitions. Word has length 137 [2022-12-13 16:00:31,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:31,675 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 753 transitions. [2022-12-13 16:00:31,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:00:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 753 transitions. [2022-12-13 16:00:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 16:00:31,677 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:31,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:31,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:00:31,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1725524485, now seen corresponding path program 1 times [2022-12-13 16:00:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:31,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245509945] [2022-12-13 16:00:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:31,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 16:00:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:00:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:00:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 16:00:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:00:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:00:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:00:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:00:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:00:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 16:00:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:00:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 16:00:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:00:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:31,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:31,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245509945] [2022-12-13 16:00:31,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245509945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:31,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:31,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 16:00:31,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017394939] [2022-12-13 16:00:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:31,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:00:31,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:31,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:00:31,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:00:31,879 INFO L87 Difference]: Start difference. First operand 485 states and 753 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-13 16:00:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:34,130 INFO L93 Difference]: Finished difference Result 1137 states and 1792 transitions. [2022-12-13 16:00:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:00:34,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2022-12-13 16:00:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:34,133 INFO L225 Difference]: With dead ends: 1137 [2022-12-13 16:00:34,133 INFO L226 Difference]: Without dead ends: 679 [2022-12-13 16:00:34,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:00:34,135 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1658 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5150 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 5150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:34,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 1629 Invalid, 5818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 5150 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 16:00:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-12-13 16:00:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-12-13 16:00:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-12-13 16:00:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 752 transitions. [2022-12-13 16:00:34,163 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 752 transitions. Word has length 157 [2022-12-13 16:00:34,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:34,163 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 752 transitions. [2022-12-13 16:00:34,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-13 16:00:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 752 transitions. [2022-12-13 16:00:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 16:00:34,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:34,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:34,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:00:34,165 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -962715799, now seen corresponding path program 1 times [2022-12-13 16:00:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:34,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709103764] [2022-12-13 16:00:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 16:00:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 16:00:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:00:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 16:00:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:00:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:00:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:00:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:00:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:00:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 16:00:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 16:00:34,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:34,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709103764] [2022-12-13 16:00:34,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709103764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:34,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:34,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 16:00:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728810884] [2022-12-13 16:00:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:34,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:00:34,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:00:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:00:34,322 INFO L87 Difference]: Start difference. First operand 485 states and 752 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 16:00:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:36,811 INFO L93 Difference]: Finished difference Result 1139 states and 1798 transitions. [2022-12-13 16:00:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:00:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2022-12-13 16:00:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:36,814 INFO L225 Difference]: With dead ends: 1139 [2022-12-13 16:00:36,814 INFO L226 Difference]: Without dead ends: 681 [2022-12-13 16:00:36,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:00:36,817 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1657 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:36,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1629 Invalid, 5840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 5176 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 16:00:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-12-13 16:00:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 487. [2022-12-13 16:00:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 377 states have (on average 1.557029177718833) internal successors, (587), 385 states have internal predecessors, (587), 80 states have call successors, (80), 25 states have call predecessors, (80), 29 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2022-12-13 16:00:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 758 transitions. [2022-12-13 16:00:36,850 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 758 transitions. Word has length 139 [2022-12-13 16:00:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:36,850 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 758 transitions. [2022-12-13 16:00:36,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 16:00:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 758 transitions. [2022-12-13 16:00:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 16:00:36,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:36,853 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:36,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:00:36,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:36,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1140965632, now seen corresponding path program 1 times [2022-12-13 16:00:36,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:36,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235046061] [2022-12-13 16:00:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:36,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 16:00:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 16:00:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 16:00:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 16:00:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 16:00:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:00:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:00:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:00:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:00:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 16:00:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 16:00:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 16:00:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 16:00:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 16:00:37,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:37,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235046061] [2022-12-13 16:00:37,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235046061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:00:37,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909740844] [2022-12-13 16:00:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:37,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:00:37,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:00:37,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:00:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 16:00:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:37,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:00:37,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:00:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:00:37,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:00:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:00:37,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909740844] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:00:37,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:00:37,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 16:00:37,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519662231] [2022-12-13 16:00:37,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:00:37,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 16:00:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 16:00:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:00:37,339 INFO L87 Difference]: Start difference. First operand 487 states and 758 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-12-13 16:00:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:40,362 INFO L93 Difference]: Finished difference Result 2048 states and 3436 transitions. [2022-12-13 16:00:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 16:00:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 159 [2022-12-13 16:00:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:40,368 INFO L225 Difference]: With dead ends: 2048 [2022-12-13 16:00:40,368 INFO L226 Difference]: Without dead ends: 1592 [2022-12-13 16:00:40,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:00:40,370 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 4075 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 6655 mSolverCounterSat, 1641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 8296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1641 IncrementalHoareTripleChecker+Valid, 6655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:40,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 3930 Invalid, 8296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1641 Valid, 6655 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 16:00:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-12-13 16:00:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 930. [2022-12-13 16:00:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 741 states have (on average 1.6099865047233468) internal successors, (1193), 749 states have internal predecessors, (1193), 159 states have call successors, (159), 25 states have call predecessors, (159), 29 states have return successors, (180), 157 states have call predecessors, (180), 158 states have call successors, (180) [2022-12-13 16:00:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1532 transitions. [2022-12-13 16:00:40,444 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1532 transitions. Word has length 159 [2022-12-13 16:00:40,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:40,445 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1532 transitions. [2022-12-13 16:00:40,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-12-13 16:00:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1532 transitions. [2022-12-13 16:00:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 16:00:40,448 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:40,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:40,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 16:00:40,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 16:00:40,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:40,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1887412203, now seen corresponding path program 1 times [2022-12-13 16:00:40,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:40,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475857277] [2022-12-13 16:00:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:00:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:00:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:00:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:00:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:00:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:00:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:00:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:00:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:00:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:00:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:40,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:40,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475857277] [2022-12-13 16:00:40,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475857277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:40,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:40,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934218772] [2022-12-13 16:00:40,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:40,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:40,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:40,741 INFO L87 Difference]: Start difference. First operand 930 states and 1532 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:42,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:42,368 INFO L93 Difference]: Finished difference Result 2399 states and 4044 transitions. [2022-12-13 16:00:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:42,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-12-13 16:00:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:42,375 INFO L225 Difference]: With dead ends: 2399 [2022-12-13 16:00:42,375 INFO L226 Difference]: Without dead ends: 1547 [2022-12-13 16:00:42,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:42,377 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1490 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:42,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1066 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 16:00:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-12-13 16:00:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1345. [2022-12-13 16:00:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1077 states have (on average 1.627669452181987) internal successors, (1753), 1085 states have internal predecessors, (1753), 238 states have call successors, (238), 25 states have call predecessors, (238), 29 states have return successors, (269), 236 states have call predecessors, (269), 237 states have call successors, (269) [2022-12-13 16:00:42,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2260 transitions. [2022-12-13 16:00:42,503 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2260 transitions. Word has length 143 [2022-12-13 16:00:42,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:42,504 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 2260 transitions. [2022-12-13 16:00:42,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2260 transitions. [2022-12-13 16:00:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 16:00:42,511 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:42,511 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:42,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:00:42,511 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:42,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash 126129074, now seen corresponding path program 1 times [2022-12-13 16:00:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:42,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146468251] [2022-12-13 16:00:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 16:00:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:00:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:00:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:00:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 16:00:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 16:00:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:00:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:00:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 16:00:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 16:00:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:42,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:42,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146468251] [2022-12-13 16:00:42,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146468251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:42,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:42,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:42,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308101520] [2022-12-13 16:00:42,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:42,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:42,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:42,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:42,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:42,615 INFO L87 Difference]: Start difference. First operand 1345 states and 2260 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:44,159 INFO L93 Difference]: Finished difference Result 3438 states and 5857 transitions. [2022-12-13 16:00:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-12-13 16:00:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:44,166 INFO L225 Difference]: With dead ends: 3438 [2022-12-13 16:00:44,166 INFO L226 Difference]: Without dead ends: 2224 [2022-12-13 16:00:44,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:44,168 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1486 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:44,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1068 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 16:00:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-12-13 16:00:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2022. [2022-12-13 16:00:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1635 states have (on average 1.636085626911315) internal successors, (2675), 1643 states have internal predecessors, (2675), 357 states have call successors, (357), 25 states have call predecessors, (357), 29 states have return successors, (388), 355 states have call predecessors, (388), 356 states have call successors, (388) [2022-12-13 16:00:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 3420 transitions. [2022-12-13 16:00:44,308 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 3420 transitions. Word has length 144 [2022-12-13 16:00:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:44,308 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 3420 transitions. [2022-12-13 16:00:44,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 3420 transitions. [2022-12-13 16:00:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 16:00:44,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:44,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:44,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:00:44,314 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:44,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:44,315 INFO L85 PathProgramCache]: Analyzing trace with hash -427562621, now seen corresponding path program 1 times [2022-12-13 16:00:44,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:44,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180339048] [2022-12-13 16:00:44,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:44,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 16:00:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:00:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 16:00:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 16:00:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:00:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 16:00:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 16:00:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:00:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 16:00:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:00:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:44,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:44,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180339048] [2022-12-13 16:00:44,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180339048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:44,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:44,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459672310] [2022-12-13 16:00:44,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:44,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:44,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:44,398 INFO L87 Difference]: Start difference. First operand 2022 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:46,346 INFO L93 Difference]: Finished difference Result 5023 states and 8636 transitions. [2022-12-13 16:00:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:46,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2022-12-13 16:00:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:46,356 INFO L225 Difference]: With dead ends: 5023 [2022-12-13 16:00:46,356 INFO L226 Difference]: Without dead ends: 3267 [2022-12-13 16:00:46,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:46,360 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1486 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:46,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1042 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:00:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-12-13 16:00:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3065. [2022-12-13 16:00:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 2516 states have (on average 1.6426868044515104) internal successors, (4133), 2524 states have internal predecessors, (4133), 519 states have call successors, (519), 25 states have call predecessors, (519), 29 states have return successors, (566), 517 states have call predecessors, (566), 518 states have call successors, (566) [2022-12-13 16:00:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5218 transitions. [2022-12-13 16:00:46,599 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5218 transitions. Word has length 145 [2022-12-13 16:00:46,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:46,600 INFO L495 AbstractCegarLoop]: Abstraction has 3065 states and 5218 transitions. [2022-12-13 16:00:46,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5218 transitions. [2022-12-13 16:00:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-13 16:00:46,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:46,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:46,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:00:46,609 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1426222563, now seen corresponding path program 1 times [2022-12-13 16:00:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:46,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338958783] [2022-12-13 16:00:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 16:00:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:00:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 16:00:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 16:00:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 16:00:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:00:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:00:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:00:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 16:00:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 16:00:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 16:00:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 16:00:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 16:00:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:00:46,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:46,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338958783] [2022-12-13 16:00:46,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338958783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:46,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:46,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:46,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687016039] [2022-12-13 16:00:46,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:46,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:46,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:46,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:46,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:46,705 INFO L87 Difference]: Start difference. First operand 3065 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:48,571 INFO L93 Difference]: Finished difference Result 7537 states and 13051 transitions. [2022-12-13 16:00:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:48,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2022-12-13 16:00:48,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:48,588 INFO L225 Difference]: With dead ends: 7537 [2022-12-13 16:00:48,588 INFO L226 Difference]: Without dead ends: 4957 [2022-12-13 16:00:48,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:48,592 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1496 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 2500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:48,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1041 Invalid, 2500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 16:00:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2022-12-13 16:00:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 4755. [2022-12-13 16:00:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4755 states, 3961 states have (on average 1.647311285029033) internal successors, (6525), 3969 states have internal predecessors, (6525), 764 states have call successors, (764), 25 states have call predecessors, (764), 29 states have return successors, (837), 762 states have call predecessors, (837), 763 states have call successors, (837) [2022-12-13 16:00:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4755 states to 4755 states and 8126 transitions. [2022-12-13 16:00:48,943 INFO L78 Accepts]: Start accepts. Automaton has 4755 states and 8126 transitions. Word has length 165 [2022-12-13 16:00:48,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:48,943 INFO L495 AbstractCegarLoop]: Abstraction has 4755 states and 8126 transitions. [2022-12-13 16:00:48,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4755 states and 8126 transitions. [2022-12-13 16:00:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-13 16:00:48,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:48,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:48,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:00:48,953 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:48,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:48,954 INFO L85 PathProgramCache]: Analyzing trace with hash 447078135, now seen corresponding path program 1 times [2022-12-13 16:00:48,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:48,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143627941] [2022-12-13 16:00:48,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:48,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 16:00:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:00:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:00:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:00:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:00:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:00:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:00:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:00:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 16:00:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 16:00:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 16:00:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 16:00:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:00:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:00:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:49,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143627941] [2022-12-13 16:00:49,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143627941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:49,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:49,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103331207] [2022-12-13 16:00:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:49,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:49,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:49,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:49,037 INFO L87 Difference]: Start difference. First operand 4755 states and 8126 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:51,047 INFO L93 Difference]: Finished difference Result 11738 states and 20428 transitions. [2022-12-13 16:00:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:51,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2022-12-13 16:00:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:51,069 INFO L225 Difference]: With dead ends: 11738 [2022-12-13 16:00:51,069 INFO L226 Difference]: Without dead ends: 7800 [2022-12-13 16:00:51,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:51,075 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1500 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:51,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1084 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 16:00:51,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7800 states. [2022-12-13 16:00:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7800 to 7598. [2022-12-13 16:00:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 6311 states have (on average 1.6453810806528284) internal successors, (10384), 6319 states have internal predecessors, (10384), 1257 states have call successors, (1257), 25 states have call predecessors, (1257), 29 states have return successors, (1374), 1255 states have call predecessors, (1374), 1256 states have call successors, (1374) [2022-12-13 16:00:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 13015 transitions. [2022-12-13 16:00:51,592 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 13015 transitions. Word has length 166 [2022-12-13 16:00:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:51,592 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 13015 transitions. [2022-12-13 16:00:51,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 13015 transitions. [2022-12-13 16:00:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 16:00:51,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:51,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:00:51,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:00:51,606 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:51,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1405590039, now seen corresponding path program 1 times [2022-12-13 16:00:51,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:51,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668489887] [2022-12-13 16:00:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:51,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:00:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:00:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 16:00:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:00:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 16:00:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:00:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 16:00:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:00:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:00:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:00:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:00:51,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:51,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668489887] [2022-12-13 16:00:51,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668489887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:51,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:51,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:51,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626335853] [2022-12-13 16:00:51,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:51,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:51,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:51,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:51,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:51,687 INFO L87 Difference]: Start difference. First operand 7598 states and 13015 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:54,138 INFO L93 Difference]: Finished difference Result 19353 states and 33704 transitions. [2022-12-13 16:00:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2022-12-13 16:00:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:54,175 INFO L225 Difference]: With dead ends: 19353 [2022-12-13 16:00:54,175 INFO L226 Difference]: Without dead ends: 12974 [2022-12-13 16:00:54,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:54,189 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1473 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:54,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1046 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 16:00:54,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12974 states. [2022-12-13 16:00:55,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12974 to 12772. [2022-12-13 16:00:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12772 states, 10663 states have (on average 1.6455969239426054) internal successors, (17547), 10671 states have internal predecessors, (17547), 2079 states have call successors, (2079), 25 states have call predecessors, (2079), 29 states have return successors, (2274), 2077 states have call predecessors, (2274), 2078 states have call successors, (2274) [2022-12-13 16:00:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 21900 transitions. [2022-12-13 16:00:55,098 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 21900 transitions. Word has length 148 [2022-12-13 16:00:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:55,098 INFO L495 AbstractCegarLoop]: Abstraction has 12772 states and 21900 transitions. [2022-12-13 16:00:55,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:00:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 21900 transitions. [2022-12-13 16:00:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 16:00:55,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:55,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:55,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:00:55,141 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1130421143, now seen corresponding path program 1 times [2022-12-13 16:00:55,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:55,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377153207] [2022-12-13 16:00:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:55,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:00:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:00:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:00:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:00:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:00:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:00:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 16:00:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 16:00:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:00:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 16:00:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 16:00:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 16:00:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 16:00:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:00:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:00:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:00:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 16:00:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 16:00:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:00:55,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:00:55,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377153207] [2022-12-13 16:00:55,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377153207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:00:55,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:00:55,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:00:55,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897614552] [2022-12-13 16:00:55,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:00:55,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:00:55,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:00:55,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:00:55,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:00:55,233 INFO L87 Difference]: Start difference. First operand 12772 states and 21900 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:00:58,279 INFO L93 Difference]: Finished difference Result 30836 states and 53404 transitions. [2022-12-13 16:00:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:00:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2022-12-13 16:00:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:00:58,323 INFO L225 Difference]: With dead ends: 30836 [2022-12-13 16:00:58,323 INFO L226 Difference]: Without dead ends: 20287 [2022-12-13 16:00:58,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:00:58,339 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1486 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:00:58,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1023 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [700 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 16:00:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20287 states. [2022-12-13 16:00:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20287 to 20085. [2022-12-13 16:00:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20085 states, 16773 states have (on average 1.6212365110594407) internal successors, (27193), 16781 states have internal predecessors, (27193), 3282 states have call successors, (3282), 25 states have call predecessors, (3282), 29 states have return successors, (3621), 3280 states have call predecessors, (3621), 3281 states have call successors, (3621) [2022-12-13 16:00:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20085 states to 20085 states and 34096 transitions. [2022-12-13 16:00:59,928 INFO L78 Accepts]: Start accepts. Automaton has 20085 states and 34096 transitions. Word has length 168 [2022-12-13 16:00:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:00:59,928 INFO L495 AbstractCegarLoop]: Abstraction has 20085 states and 34096 transitions. [2022-12-13 16:00:59,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:00:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 20085 states and 34096 transitions. [2022-12-13 16:00:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 16:00:59,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:00:59,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:59,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:00:59,950 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:00:59,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:00:59,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1068301886, now seen corresponding path program 1 times [2022-12-13 16:00:59,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:00:59,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066439194] [2022-12-13 16:00:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:00:59,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:00:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:00:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:00:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:01:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:01:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:01:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:01:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:01:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:01:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:01:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 16:01:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 16:01:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 16:01:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:01:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:01:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:01:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:01:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 16:01:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:01:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 16:01:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 16:01:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:01:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:01:00,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066439194] [2022-12-13 16:01:00,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066439194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:01:00,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:01:00,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:01:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404425477] [2022-12-13 16:01:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:01:00,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:01:00,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:01:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:01:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:01:00,038 INFO L87 Difference]: Start difference. First operand 20085 states and 34096 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:01:04,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:01:04,452 INFO L93 Difference]: Finished difference Result 53278 states and 91938 transitions. [2022-12-13 16:01:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:01:04,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2022-12-13 16:01:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:01:04,530 INFO L225 Difference]: With dead ends: 53278 [2022-12-13 16:01:04,530 INFO L226 Difference]: Without dead ends: 36093 [2022-12-13 16:01:04,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:01:04,559 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1489 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:01:04,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1045 Invalid, 2519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:01:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36093 states. [2022-12-13 16:01:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36093 to 35891. [2022-12-13 16:01:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35891 states, 30129 states have (on average 1.6182083706727737) internal successors, (48755), 30137 states have internal predecessors, (48755), 5732 states have call successors, (5732), 25 states have call predecessors, (5732), 29 states have return successors, (6345), 5730 states have call predecessors, (6345), 5731 states have call successors, (6345) [2022-12-13 16:01:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35891 states to 35891 states and 60832 transitions. [2022-12-13 16:01:07,478 INFO L78 Accepts]: Start accepts. Automaton has 35891 states and 60832 transitions. Word has length 169 [2022-12-13 16:01:07,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:01:07,479 INFO L495 AbstractCegarLoop]: Abstraction has 35891 states and 60832 transitions. [2022-12-13 16:01:07,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:01:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand 35891 states and 60832 transitions. [2022-12-13 16:01:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 16:01:07,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:01:07,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:01:07,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:01:07,552 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:01:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:01:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash -992614041, now seen corresponding path program 1 times [2022-12-13 16:01:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:01:07,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064224767] [2022-12-13 16:01:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:01:07,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:01:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:01:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:01:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:01:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:01:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:01:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:01:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 16:01:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 16:01:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 16:01:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 16:01:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 16:01:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:01:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 16:01:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 16:01:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:01:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 16:01:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:01:07,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:01:07,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064224767] [2022-12-13 16:01:07,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064224767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:01:07,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:01:07,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:01:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390550219] [2022-12-13 16:01:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:01:07,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:01:07,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:01:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:01:07,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:01:07,631 INFO L87 Difference]: Start difference. First operand 35891 states and 60832 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:01:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:01:13,388 INFO L93 Difference]: Finished difference Result 98125 states and 168497 transitions. [2022-12-13 16:01:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:01:13,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-12-13 16:01:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:01:13,553 INFO L225 Difference]: With dead ends: 98125 [2022-12-13 16:01:13,553 INFO L226 Difference]: Without dead ends: 66090 [2022-12-13 16:01:13,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:01:13,605 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1467 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:01:13,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1078 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 16:01:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66090 states. [2022-12-13 16:01:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66090 to 65888. [2022-12-13 16:01:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65888 states, 55613 states have (on average 1.6141549637674644) internal successors, (89768), 55621 states have internal predecessors, (89768), 10245 states have call successors, (10245), 25 states have call predecessors, (10245), 29 states have return successors, (11390), 10243 states have call predecessors, (11390), 10244 states have call successors, (11390) [2022-12-13 16:01:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65888 states to 65888 states and 111403 transitions. [2022-12-13 16:01:18,674 INFO L78 Accepts]: Start accepts. Automaton has 65888 states and 111403 transitions. Word has length 151 [2022-12-13 16:01:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:01:18,674 INFO L495 AbstractCegarLoop]: Abstraction has 65888 states and 111403 transitions. [2022-12-13 16:01:18,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:01:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 65888 states and 111403 transitions. [2022-12-13 16:01:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 16:01:18,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:01:18,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:18,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:01:18,715 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:01:18,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:01:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 177741048, now seen corresponding path program 1 times [2022-12-13 16:01:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:01:18,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899978227] [2022-12-13 16:01:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:01:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:01:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:01:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:01:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:01:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:01:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:01:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:01:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 16:01:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 16:01:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 16:01:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:01:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:01:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 16:01:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 16:01:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 16:01:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 16:01:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 16:01:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:01:18,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:01:18,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899978227] [2022-12-13 16:01:18,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899978227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:01:18,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:01:18,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:01:18,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282157735] [2022-12-13 16:01:18,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:01:18,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:01:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:01:18,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:01:18,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:01:18,785 INFO L87 Difference]: Start difference. First operand 65888 states and 111403 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:01:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:01:28,667 INFO L93 Difference]: Finished difference Result 123786 states and 212930 transitions. [2022-12-13 16:01:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:01:28,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-12-13 16:01:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:01:28,996 INFO L225 Difference]: With dead ends: 123786 [2022-12-13 16:01:28,996 INFO L226 Difference]: Without dead ends: 123578 [2022-12-13 16:01:29,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:01:29,029 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1470 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:01:29,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1046 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:01:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123578 states. [2022-12-13 16:01:38,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123578 to 123376. [2022-12-13 16:01:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123376 states, 104733 states have (on average 1.6090439498534368) internal successors, (168520), 104741 states have internal predecessors, (168520), 18613 states have call successors, (18613), 25 states have call predecessors, (18613), 29 states have return successors, (20804), 18611 states have call predecessors, (20804), 18612 states have call successors, (20804) [2022-12-13 16:01:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123376 states to 123376 states and 207937 transitions. [2022-12-13 16:01:38,409 INFO L78 Accepts]: Start accepts. Automaton has 123376 states and 207937 transitions. Word has length 152 [2022-12-13 16:01:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:01:38,409 INFO L495 AbstractCegarLoop]: Abstraction has 123376 states and 207937 transitions. [2022-12-13 16:01:38,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:01:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 123376 states and 207937 transitions. [2022-12-13 16:01:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 16:01:38,456 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:01:38,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:38,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:01:38,457 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:01:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:01:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 137564998, now seen corresponding path program 1 times [2022-12-13 16:01:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:01:38,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149195579] [2022-12-13 16:01:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:01:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:01:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:01:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:01:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:01:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:01:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:01:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:01:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:01:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:01:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:01:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:01:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:01:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 16:01:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:01:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 16:01:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 16:01:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 16:01:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 16:01:38,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:01:38,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149195579] [2022-12-13 16:01:38,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149195579] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:01:38,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356418614] [2022-12-13 16:01:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:01:38,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:01:38,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:01:38,732 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:01:38,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 16:01:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:38,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 16:01:38,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:01:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 16:01:39,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:01:39,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356418614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:01:39,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:01:39,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-12-13 16:01:39,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131059326] [2022-12-13 16:01:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:01:39,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:01:39,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:01:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:01:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-12-13 16:01:39,200 INFO L87 Difference]: Start difference. First operand 123376 states and 207937 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 16:01:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:01:56,510 INFO L93 Difference]: Finished difference Result 245943 states and 419960 transitions. [2022-12-13 16:01:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:01:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 153 [2022-12-13 16:01:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:01:57,350 INFO L225 Difference]: With dead ends: 245943 [2022-12-13 16:01:57,350 INFO L226 Difference]: Without dead ends: 245741 [2022-12-13 16:01:57,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 16:01:57,426 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 1879 mSDsluCounter, 4709 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 5577 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:01:57,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 5577 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:01:57,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245741 states. [2022-12-13 16:02:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245741 to 245696. [2022-12-13 16:02:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245696 states, 208612 states have (on average 1.6095526623588288) internal successors, (335772), 208520 states have internal predecessors, (335772), 37010 states have call successors, (37010), 66 states have call predecessors, (37010), 73 states have return successors, (44681), 37117 states have call predecessors, (44681), 37007 states have call successors, (44681) [2022-12-13 16:02:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245696 states to 245696 states and 417463 transitions. [2022-12-13 16:02:16,995 INFO L78 Accepts]: Start accepts. Automaton has 245696 states and 417463 transitions. Word has length 153 [2022-12-13 16:02:16,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:16,995 INFO L495 AbstractCegarLoop]: Abstraction has 245696 states and 417463 transitions. [2022-12-13 16:02:16,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 16:02:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 245696 states and 417463 transitions. [2022-12-13 16:02:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 16:02:17,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:17,104 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:17,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:17,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5bcfe7-5cf9-4eb1-9066-e4ee98ed22b2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 16:02:17,306 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:17,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:17,307 INFO L85 PathProgramCache]: Analyzing trace with hash -78767621, now seen corresponding path program 1 times [2022-12-13 16:02:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:02:17,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93003548] [2022-12-13 16:02:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:17,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:02:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:02:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:02:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:02:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:02:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:02:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:02:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:02:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:02:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:02:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:02:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:02:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:02:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 16:02:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:02:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:02:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 16:02:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:02:17,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:02:17,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93003548] [2022-12-13 16:02:17,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93003548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:17,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:17,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 16:02:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758714835] [2022-12-13 16:02:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:17,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 16:02:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:02:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 16:02:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:02:17,488 INFO L87 Difference]: Start difference. First operand 245696 states and 417463 transitions. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 16:02:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:39,359 INFO L93 Difference]: Finished difference Result 248990 states and 429355 transitions. [2022-12-13 16:02:39,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 16:02:39,359 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 154 [2022-12-13 16:02:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:40,138 INFO L225 Difference]: With dead ends: 248990 [2022-12-13 16:02:40,138 INFO L226 Difference]: Without dead ends: 248262 [2022-12-13 16:02:40,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 16:02:40,216 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 3520 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 6675 mSolverCounterSat, 2264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 8939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2264 IncrementalHoareTripleChecker+Valid, 6675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:40,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 2102 Invalid, 8939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2264 Valid, 6675 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 16:02:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248262 states. [2022-12-13 16:03:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248262 to 246196. [2022-12-13 16:03:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246196 states, 208956 states have (on average 1.6090660234690557) internal successors, (336224), 208876 states have internal predecessors, (336224), 37158 states have call successors, (37158), 72 states have call predecessors, (37158), 81 states have return successors, (44865), 37263 states have call predecessors, (44865), 37149 states have call successors, (44865) [2022-12-13 16:03:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246196 states to 246196 states and 418247 transitions. [2022-12-13 16:03:01,091 INFO L78 Accepts]: Start accepts. Automaton has 246196 states and 418247 transitions. Word has length 154 [2022-12-13 16:03:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:03:01,092 INFO L495 AbstractCegarLoop]: Abstraction has 246196 states and 418247 transitions. [2022-12-13 16:03:01,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 16:03:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 246196 states and 418247 transitions. [2022-12-13 16:03:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 16:03:01,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:01,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:03:01,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 16:03:01,204 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1955697965, now seen corresponding path program 1 times [2022-12-13 16:03:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:03:01,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011879533] [2022-12-13 16:03:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:03:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:03:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:03:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:03:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:03:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:03:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:03:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:03:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:03:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:03:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:03:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:03:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:03:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:03:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 16:03:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:03:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:03:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 16:03:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:03:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:03:01,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011879533] [2022-12-13 16:03:01,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011879533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:03:01,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:03:01,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:03:01,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021729096] [2022-12-13 16:03:01,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:03:01,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:03:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:03:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:03:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:03:01,318 INFO L87 Difference]: Start difference. First operand 246196 states and 418247 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:03:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:03:32,736 INFO L93 Difference]: Finished difference Result 374671 states and 655037 transitions. [2022-12-13 16:03:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 16:03:32,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2022-12-13 16:03:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:03:33,999 INFO L225 Difference]: With dead ends: 374671 [2022-12-13 16:03:33,999 INFO L226 Difference]: Without dead ends: 373797 [2022-12-13 16:03:34,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:03:34,134 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 4460 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 2255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2255 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:03:34,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 1501 Invalid, 5689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2255 Valid, 3434 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 16:03:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373797 states. [2022-12-13 16:04:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373797 to 368899. [2022-12-13 16:04:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368899 states, 313098 states have (on average 1.6091223834071122) internal successors, (503813), 312928 states have internal predecessors, (503813), 55669 states have call successors, (55669), 115 states have call predecessors, (55669), 131 states have return successors, (74249), 55883 states have call predecessors, (74249), 55654 states have call successors, (74249) [2022-12-13 16:04:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368899 states to 368899 states and 633731 transitions. [2022-12-13 16:04:06,748 INFO L78 Accepts]: Start accepts. Automaton has 368899 states and 633731 transitions. Word has length 154 [2022-12-13 16:04:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:06,748 INFO L495 AbstractCegarLoop]: Abstraction has 368899 states and 633731 transitions. [2022-12-13 16:04:06,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:04:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 368899 states and 633731 transitions. [2022-12-13 16:04:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-13 16:04:07,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:07,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:04:07,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 16:04:07,091 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1401891268, now seen corresponding path program 1 times [2022-12-13 16:04:07,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:04:07,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469708206] [2022-12-13 16:04:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:07,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:04:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:04:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:04:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:04:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:04:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:04:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:04:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:04:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:04:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:04:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:04:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 16:04:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 16:04:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:04:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:04:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:04:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:04:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 16:04:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 16:04:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 16:04:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:04:07,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:04:07,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469708206] [2022-12-13 16:04:07,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469708206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:07,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:07,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 16:04:07,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023050577] [2022-12-13 16:04:07,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:07,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:04:07,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:04:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:04:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:04:07,232 INFO L87 Difference]: Start difference. First operand 368899 states and 633731 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:05:06,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:06,740 INFO L93 Difference]: Finished difference Result 715706 states and 1252589 transitions. [2022-12-13 16:05:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 16:05:06,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2022-12-13 16:05:06,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:09,424 INFO L225 Difference]: With dead ends: 715706 [2022-12-13 16:05:09,424 INFO L226 Difference]: Without dead ends: 713630 [2022-12-13 16:05:09,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:05:09,680 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 3351 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 1520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3369 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 5859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1520 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:09,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3369 Valid, 1799 Invalid, 5859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1520 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 16:05:10,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713630 states. [2022-12-13 16:06:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713630 to 709592. [2022-12-13 16:06:13,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709592 states, 602182 states have (on average 1.612047520517053) internal successors, (970746), 601816 states have internal predecessors, (970746), 107148 states have call successors, (107148), 227 states have call predecessors, (107148), 261 states have return successors, (144101), 107604 states have call predecessors, (144101), 107118 states have call successors, (144101) [2022-12-13 16:06:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709592 states to 709592 states and 1221995 transitions. [2022-12-13 16:06:15,964 INFO L78 Accepts]: Start accepts. Automaton has 709592 states and 1221995 transitions. Word has length 174 [2022-12-13 16:06:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:06:15,965 INFO L495 AbstractCegarLoop]: Abstraction has 709592 states and 1221995 transitions. [2022-12-13 16:06:15,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:06:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 709592 states and 1221995 transitions. [2022-12-13 16:06:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 16:06:16,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:06:16,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:06:16,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 16:06:16,277 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:06:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:06:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -27425263, now seen corresponding path program 1 times [2022-12-13 16:06:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:06:16,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511181584] [2022-12-13 16:06:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:06:16,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:06:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:06:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:06:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:06:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:06:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:06:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:06:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:06:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:06:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:06:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 16:06:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:06:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 16:06:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 16:06:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 16:06:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 16:06:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 16:06:16,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:06:16,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511181584] [2022-12-13 16:06:16,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511181584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:06:16,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:06:16,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 16:06:16,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460018207] [2022-12-13 16:06:16,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:06:16,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:06:16,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:06:16,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:06:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:06:16,624 INFO L87 Difference]: Start difference. First operand 709592 states and 1221995 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:07:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:28,769 INFO L93 Difference]: Finished difference Result 739750 states and 1292388 transitions. [2022-12-13 16:07:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 16:07:28,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 154 [2022-12-13 16:07:28,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:31,991 INFO L225 Difference]: With dead ends: 739750 [2022-12-13 16:07:31,991 INFO L226 Difference]: Without dead ends: 735654 [2022-12-13 16:07:32,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=359, Invalid=973, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 16:07:32,352 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 4046 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 5829 mSolverCounterSat, 2756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4063 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 8585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2756 IncrementalHoareTripleChecker+Valid, 5829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:32,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4063 Valid, 1391 Invalid, 8585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2756 Valid, 5829 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-13 16:07:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735654 states. [2022-12-13 16:08:41,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735654 to 720908. [2022-12-13 16:08:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720908 states, 610471 states have (on average 1.6089953494924412) internal successors, (982245), 610331 states have internal predecessors, (982245), 109554 states have call successors, (109554), 687 states have call predecessors, (109554), 882 states have return successors, (147948), 110085 states have call predecessors, (147948), 109434 states have call successors, (147948) [2022-12-13 16:08:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720908 states to 720908 states and 1239747 transitions. [2022-12-13 16:08:45,584 INFO L78 Accepts]: Start accepts. Automaton has 720908 states and 1239747 transitions. Word has length 154 [2022-12-13 16:08:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:08:45,585 INFO L495 AbstractCegarLoop]: Abstraction has 720908 states and 1239747 transitions. [2022-12-13 16:08:45,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 16:08:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 720908 states and 1239747 transitions. [2022-12-13 16:08:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 16:08:45,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:08:45,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:08:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 16:08:45,871 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:08:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:08:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1558225219, now seen corresponding path program 1 times [2022-12-13 16:08:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:08:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033206261] [2022-12-13 16:08:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:08:45,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:08:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 16:08:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 16:08:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 16:08:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 16:08:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 16:08:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 16:08:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 16:08:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:08:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 16:08:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 16:08:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 16:08:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 16:08:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:08:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:08:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:08:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 16:08:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 16:08:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-12-13 16:08:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 16:08:46,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:08:46,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033206261] [2022-12-13 16:08:46,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033206261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:08:46,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:08:46,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:08:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502068079] [2022-12-13 16:08:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:08:46,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:08:46,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:08:46,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:08:46,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:08:46,176 INFO L87 Difference]: Start difference. First operand 720908 states and 1239747 transitions. Second operand has 13 states, 12 states have (on average 9.5) internal successors, (114), 7 states have internal predecessors, (114), 4 states have call successors, (22), 8 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-13 16:09:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:59,569 INFO L93 Difference]: Finished difference Result 750340 states and 1306821 transitions. [2022-12-13 16:09:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 16:09:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.5) internal successors, (114), 7 states have internal predecessors, (114), 4 states have call successors, (22), 8 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 176 [2022-12-13 16:09:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:02,486 INFO L225 Difference]: With dead ends: 750340 [2022-12-13 16:10:02,486 INFO L226 Difference]: Without dead ends: 734814 [2022-12-13 16:10:02,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-12-13 16:10:02,891 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 2113 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 4787 mSolverCounterSat, 1013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 5800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1013 IncrementalHoareTripleChecker+Valid, 4787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:02,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 1921 Invalid, 5800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1013 Valid, 4787 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 16:10:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734814 states.