./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product39.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_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/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_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/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_4b091cfd-31bd-4430-884d-fe45330b3db7/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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:04:25,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:04:25,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:04:25,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:04:25,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:04:25,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:04:25,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:04:25,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:04:25,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:04:25,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:04:25,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:04:25,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:04:25,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:04:25,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:04:25,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:04:25,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:04:25,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:04:25,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:04:25,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:04:25,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:04:25,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:04:25,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:04:25,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:04:25,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:04:25,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:04:25,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:04:25,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:04:25,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:04:25,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:04:25,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:04:25,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:04:25,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:04:25,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:04:25,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:04:25,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:04:25,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:04:25,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:04:25,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:04:25,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:04:25,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:04:25,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:04:25,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:04:25,605 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:04:25,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:04:25,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:04:25,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:04:25,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:04:25,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:04:25,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:04:25,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:04:25,607 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:04:25,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:04:25,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:04:25,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:04:25,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:04:25,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:04:25,610 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:04:25,610 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_4b091cfd-31bd-4430-884d-fe45330b3db7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2022-12-13 15:04:25,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:04:25,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:04:25,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:04:25,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:04:25,812 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:04:25,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-12-13 15:04:28,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:04:28,605 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:04:28,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-12-13 15:04:28,617 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/data/447b76431/4ed1145b8d9f42dd9a756b80b120dded/FLAG0ee34d8ec [2022-12-13 15:04:28,627 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/data/447b76431/4ed1145b8d9f42dd9a756b80b120dded [2022-12-13 15:04:28,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:04:28,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:04:28,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:04:28,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:04:28,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:04:28,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:04:28" (1/1) ... [2022-12-13 15:04:28,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43296af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:28, skipping insertion in model container [2022-12-13 15:04:28,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:04:28" (1/1) ... [2022-12-13 15:04:28,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:04:28,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:04:28,833 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,837 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,842 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,852 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,890 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_4b091cfd-31bd-4430-884d-fe45330b3db7/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-12-13 15:04:28,987 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,990 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,990 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,991 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:28,996 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:04:29,019 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:04:29,031 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,032 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,034 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,039 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,052 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_4b091cfd-31bd-4430-884d-fe45330b3db7/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-12-13 15:04:29,080 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,081 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,082 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,083 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,085 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:04:29,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:04:29,110 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:04:29,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29 WrapperNode [2022-12-13 15:04:29,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:04:29,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:04:29,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:04:29,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:04:29,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,162 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 813 [2022-12-13 15:04:29,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:04:29,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:04:29,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:04:29,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:04:29,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:04:29,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:04:29,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:04:29,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:04:29,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (1/1) ... [2022-12-13 15:04:29,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:04:29,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:29,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:04:29,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:04:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 15:04:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 15:04:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 15:04:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 15:04:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 15:04:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 15:04:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 15:04:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 15:04:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 15:04:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 15:04:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 15:04:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 15:04:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 15:04:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 15:04:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 15:04:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:04:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:04:29,411 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:04:29,413 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:04:29,930 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:04:29,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:04:29,940 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:04:29,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:04:29 BoogieIcfgContainer [2022-12-13 15:04:29,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:04:29,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:04:29,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:04:29,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:04:29,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:04:28" (1/3) ... [2022-12-13 15:04:29,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8bb7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:04:29, skipping insertion in model container [2022-12-13 15:04:29,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:04:29" (2/3) ... [2022-12-13 15:04:29,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8bb7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:04:29, skipping insertion in model container [2022-12-13 15:04:29,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:04:29" (3/3) ... [2022-12-13 15:04:29,949 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2022-12-13 15:04:29,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:04:29,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:04:30,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:04:30,020 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;@3dfef67a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:04:30,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:04:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 309 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 245 states have internal predecessors, (381), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-13 15:04:30,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 15:04:30,041 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:30,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:30,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:30,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1924070755, now seen corresponding path program 1 times [2022-12-13 15:04:30,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:30,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716748044] [2022-12-13 15:04:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:30,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:04:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:04:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:04:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:04:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 15:04:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:04:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:04:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:04:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:04:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 15:04:30,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:30,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716748044] [2022-12-13 15:04:30,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716748044] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:30,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508970345] [2022-12-13 15:04:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:30,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:30,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:30,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:04:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:30,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:04:30,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 15:04:30,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:04:30,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508970345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:30,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:04:30,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 15:04:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016991567] [2022-12-13 15:04:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:30,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:04:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:04:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:04:30,888 INFO L87 Difference]: Start difference. First operand has 309 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 245 states have internal predecessors, (381), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:30,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:30,927 INFO L93 Difference]: Finished difference Result 425 states and 636 transitions. [2022-12-13 15:04:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:04:30,929 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2022-12-13 15:04:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:30,942 INFO L225 Difference]: With dead ends: 425 [2022-12-13 15:04:30,942 INFO L226 Difference]: Without dead ends: 302 [2022-12-13 15:04:30,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:04:30,947 INFO L413 NwaCegarLoop]: 469 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, 469 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:30,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:04:30,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-12-13 15:04:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2022-12-13 15:04:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 236 states have (on average 1.5677966101694916) internal successors, (370), 238 states have internal predecessors, (370), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-13 15:04:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 461 transitions. [2022-12-13 15:04:31,004 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 461 transitions. Word has length 96 [2022-12-13 15:04:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:31,006 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 461 transitions. [2022-12-13 15:04:31,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 461 transitions. [2022-12-13 15:04:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 15:04:31,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:31,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:31,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:04:31,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:31,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:31,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:31,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1955701627, now seen corresponding path program 1 times [2022-12-13 15:04:31,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:31,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287257179] [2022-12-13 15:04:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:04:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:04:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:04:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:04:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:04:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:04:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:04:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:04:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:04:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 15:04:31,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:31,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287257179] [2022-12-13 15:04:31,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287257179] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:31,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191507408] [2022-12-13 15:04:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:31,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:31,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:31,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:04:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:31,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:04:31,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 15:04:31,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:04:31,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191507408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:31,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:04:31,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 15:04:31,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688074089] [2022-12-13 15:04:31,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:04:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:04:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:04:31,618 INFO L87 Difference]: Start difference. First operand 302 states and 461 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:31,645 INFO L93 Difference]: Finished difference Result 415 states and 614 transitions. [2022-12-13 15:04:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:04:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2022-12-13 15:04:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:31,647 INFO L225 Difference]: With dead ends: 415 [2022-12-13 15:04:31,648 INFO L226 Difference]: Without dead ends: 305 [2022-12-13 15:04:31,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:04:31,649 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:31,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 916 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:04:31,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-12-13 15:04:31,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2022-12-13 15:04:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 238 states have (on average 1.5630252100840336) internal successors, (372), 240 states have internal predecessors, (372), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-13 15:04:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 463 transitions. [2022-12-13 15:04:31,673 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 463 transitions. Word has length 97 [2022-12-13 15:04:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:31,673 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 463 transitions. [2022-12-13 15:04:31,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 463 transitions. [2022-12-13 15:04:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 15:04:31,677 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:31,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:31,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:04:31,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:31,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 724838734, now seen corresponding path program 1 times [2022-12-13 15:04:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:31,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380720250] [2022-12-13 15:04:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:31,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:04:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:04:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:04:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 15:04:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:04:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:04:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:04:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:04:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:04:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 15:04:32,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:32,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380720250] [2022-12-13 15:04:32,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380720250] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706524148] [2022-12-13 15:04:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:32,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:32,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:32,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:32,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:04:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:04:32,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 15:04:32,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:04:32,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706524148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:32,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:04:32,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 15:04:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223098754] [2022-12-13 15:04:32,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:32,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:04:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:04:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:04:32,387 INFO L87 Difference]: Start difference. First operand 304 states and 463 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:32,420 INFO L93 Difference]: Finished difference Result 656 states and 1018 transitions. [2022-12-13 15:04:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:04:32,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2022-12-13 15:04:32,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:32,424 INFO L225 Difference]: With dead ends: 656 [2022-12-13 15:04:32,424 INFO L226 Difference]: Without dead ends: 379 [2022-12-13 15:04:32,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:04:32,427 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 134 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:32,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 907 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:04:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-13 15:04:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2022-12-13 15:04:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 291 states have (on average 1.5841924398625429) internal successors, (461), 293 states have internal predecessors, (461), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-13 15:04:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 580 transitions. [2022-12-13 15:04:32,463 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 580 transitions. Word has length 106 [2022-12-13 15:04:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:32,463 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 580 transitions. [2022-12-13 15:04:32,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 580 transitions. [2022-12-13 15:04:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 15:04:32,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:32,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:32,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:04:32,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:32,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash 82985518, now seen corresponding path program 1 times [2022-12-13 15:04:32,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:32,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774818274] [2022-12-13 15:04:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:32,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:04:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:04:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:04:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 15:04:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:04:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:04:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 15:04:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:04:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:04:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 15:04:32,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:32,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774818274] [2022-12-13 15:04:32,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774818274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:32,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905633454] [2022-12-13 15:04:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:32,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:32,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:32,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:32,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:04:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:04:33,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 15:04:33,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:04:33,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905633454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:33,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:04:33,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 15:04:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726318100] [2022-12-13 15:04:33,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:33,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:04:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:33,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:04:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:04:33,190 INFO L87 Difference]: Start difference. First operand 371 states and 580 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:33,247 INFO L93 Difference]: Finished difference Result 733 states and 1150 transitions. [2022-12-13 15:04:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:04:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2022-12-13 15:04:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:33,250 INFO L225 Difference]: With dead ends: 733 [2022-12-13 15:04:33,251 INFO L226 Difference]: Without dead ends: 373 [2022-12-13 15:04:33,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:33,263 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 152 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:33,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1633 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:04:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-13 15:04:33,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-12-13 15:04:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.582191780821918) internal successors, (462), 295 states have internal predecessors, (462), 60 states have call successors, (60), 19 states have call predecessors, (60), 20 states have return successors, (61), 58 states have call predecessors, (61), 59 states have call successors, (61) [2022-12-13 15:04:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 583 transitions. [2022-12-13 15:04:33,285 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 583 transitions. Word has length 107 [2022-12-13 15:04:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:33,285 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 583 transitions. [2022-12-13 15:04:33,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 583 transitions. [2022-12-13 15:04:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 15:04:33,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:33,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:33,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:04:33,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:33,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash -201150452, now seen corresponding path program 1 times [2022-12-13 15:04:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660307221] [2022-12-13 15:04:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 15:04:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:04:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:04:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:04:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:04:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:04:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:04:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:04:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:04:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:33,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660307221] [2022-12-13 15:04:33,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660307221] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:33,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415703548] [2022-12-13 15:04:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:33,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:33,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:33,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:04:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:33,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:04:33,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 15:04:33,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:04:33,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415703548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:33,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:04:33,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 15:04:33,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737152305] [2022-12-13 15:04:33,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:33,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:04:33,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:04:33,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:04:33,921 INFO L87 Difference]: Start difference. First operand 373 states and 583 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:33,989 INFO L93 Difference]: Finished difference Result 735 states and 1155 transitions. [2022-12-13 15:04:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:04:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-12-13 15:04:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:33,992 INFO L225 Difference]: With dead ends: 735 [2022-12-13 15:04:33,992 INFO L226 Difference]: Without dead ends: 375 [2022-12-13 15:04:33,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:04:33,994 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 151 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:33,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1622 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:04:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-12-13 15:04:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-12-13 15:04:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 293 states have (on average 1.5802047781569966) internal successors, (463), 297 states have internal predecessors, (463), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2022-12-13 15:04:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 589 transitions. [2022-12-13 15:04:34,020 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 589 transitions. Word has length 108 [2022-12-13 15:04:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:34,020 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 589 transitions. [2022-12-13 15:04:34,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 589 transitions. [2022-12-13 15:04:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-13 15:04:34,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:34,023 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:04:34,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 15:04:34,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:34,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:34,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1014394431, now seen corresponding path program 1 times [2022-12-13 15:04:34,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:34,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719765014] [2022-12-13 15:04:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:04:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:04:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:04:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:04:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:04:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:04:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:04:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 15:04:34,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:34,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719765014] [2022-12-13 15:04:34,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719765014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:34,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:34,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:04:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924456333] [2022-12-13 15:04:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:34,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:04:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:04:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:04:34,500 INFO L87 Difference]: Start difference. First operand 375 states and 589 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:35,768 INFO L93 Difference]: Finished difference Result 812 states and 1299 transitions. [2022-12-13 15:04:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:04:35,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2022-12-13 15:04:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:35,772 INFO L225 Difference]: With dead ends: 812 [2022-12-13 15:04:35,772 INFO L226 Difference]: Without dead ends: 460 [2022-12-13 15:04:35,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:04:35,773 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1051 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:35,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1191 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:04:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-12-13 15:04:35,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 375. [2022-12-13 15:04:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 293 states have (on average 1.5802047781569966) internal successors, (463), 297 states have internal predecessors, (463), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (65), 58 states have call predecessors, (65), 59 states have call successors, (65) [2022-12-13 15:04:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 588 transitions. [2022-12-13 15:04:35,797 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 588 transitions. Word has length 109 [2022-12-13 15:04:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:35,797 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 588 transitions. [2022-12-13 15:04:35,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 588 transitions. [2022-12-13 15:04:35,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 15:04:35,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:35,799 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:04:35,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:04:35,799 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:35,799 INFO L85 PathProgramCache]: Analyzing trace with hash 33364413, now seen corresponding path program 2 times [2022-12-13 15:04:35,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:35,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189863328] [2022-12-13 15:04:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:35,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:04:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:04:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:04:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:04:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:04:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:04:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:04:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 15:04:35,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:35,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189863328] [2022-12-13 15:04:35,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189863328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:35,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:35,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:04:35,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33329255] [2022-12-13 15:04:35,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:35,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:04:35,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:35,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:04:35,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:04:35,945 INFO L87 Difference]: Start difference. First operand 375 states and 588 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:37,143 INFO L93 Difference]: Finished difference Result 814 states and 1302 transitions. [2022-12-13 15:04:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:04:37,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2022-12-13 15:04:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:37,145 INFO L225 Difference]: With dead ends: 814 [2022-12-13 15:04:37,145 INFO L226 Difference]: Without dead ends: 462 [2022-12-13 15:04:37,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:04:37,147 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1048 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:37,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1190 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 15:04:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-12-13 15:04:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 377. [2022-12-13 15:04:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 294 states have (on average 1.5782312925170068) internal successors, (464), 299 states have internal predecessors, (464), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (67), 58 states have call predecessors, (67), 59 states have call successors, (67) [2022-12-13 15:04:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 591 transitions. [2022-12-13 15:04:37,182 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 591 transitions. Word has length 110 [2022-12-13 15:04:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:37,182 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 591 transitions. [2022-12-13 15:04:37,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:04:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 591 transitions. [2022-12-13 15:04:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 15:04:37,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:37,185 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:04:37,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:04:37,185 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1805555962, now seen corresponding path program 1 times [2022-12-13 15:04:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:37,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283998790] [2022-12-13 15:04:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:37,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:04:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 15:04:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:04:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:04:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 15:04:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 15:04:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:04:37,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283998790] [2022-12-13 15:04:37,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283998790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:37,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:37,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:04:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530148408] [2022-12-13 15:04:37,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:37,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:04:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:37,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:04:37,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:04:37,348 INFO L87 Difference]: Start difference. First operand 377 states and 591 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 15:04:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:39,037 INFO L93 Difference]: Finished difference Result 812 states and 1297 transitions. [2022-12-13 15:04:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:04:39,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2022-12-13 15:04:39,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:39,040 INFO L225 Difference]: With dead ends: 812 [2022-12-13 15:04:39,040 INFO L226 Difference]: Without dead ends: 462 [2022-12-13 15:04:39,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:04:39,041 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1213 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:39,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 1557 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 2900 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 15:04:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-12-13 15:04:39,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 377. [2022-12-13 15:04:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 294 states have (on average 1.5782312925170068) internal successors, (464), 299 states have internal predecessors, (464), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2022-12-13 15:04:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 590 transitions. [2022-12-13 15:04:39,063 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 590 transitions. Word has length 111 [2022-12-13 15:04:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:39,063 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 590 transitions. [2022-12-13 15:04:39,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 15:04:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 590 transitions. [2022-12-13 15:04:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 15:04:39,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:39,065 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:04:39,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:04:39,065 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1028005593, now seen corresponding path program 2 times [2022-12-13 15:04:39,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:39,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649671501] [2022-12-13 15:04:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:04:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:04:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:04:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:04:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 15:04:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 15:04:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:04:39,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:39,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649671501] [2022-12-13 15:04:39,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649671501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:39,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:39,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:04:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506361121] [2022-12-13 15:04:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:39,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:04:39,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:39,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:04:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:04:39,211 INFO L87 Difference]: Start difference. First operand 377 states and 590 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 15:04:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:40,459 INFO L93 Difference]: Finished difference Result 814 states and 1303 transitions. [2022-12-13 15:04:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:04:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2022-12-13 15:04:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:40,461 INFO L225 Difference]: With dead ends: 814 [2022-12-13 15:04:40,461 INFO L226 Difference]: Without dead ends: 464 [2022-12-13 15:04:40,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:04:40,462 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1243 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:40,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1557 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:04:40,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-12-13 15:04:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 379. [2022-12-13 15:04:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 295 states have (on average 1.576271186440678) internal successors, (465), 301 states have internal predecessors, (465), 60 states have call successors, (60), 19 states have call predecessors, (60), 23 states have return successors, (71), 58 states have call predecessors, (71), 59 states have call successors, (71) [2022-12-13 15:04:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 596 transitions. [2022-12-13 15:04:40,484 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 596 transitions. Word has length 112 [2022-12-13 15:04:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:40,484 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 596 transitions. [2022-12-13 15:04:40,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 15:04:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 596 transitions. [2022-12-13 15:04:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 15:04:40,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:40,485 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 15:04:40,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:04:40,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:40,486 INFO L85 PathProgramCache]: Analyzing trace with hash 369653931, now seen corresponding path program 1 times [2022-12-13 15:04:40,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:40,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649389324] [2022-12-13 15:04:40,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:04:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:04:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:04:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:04:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:04:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:04:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 15:04:40,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:40,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649389324] [2022-12-13 15:04:40,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649389324] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:40,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977267263] [2022-12-13 15:04:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:40,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:04:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:04:40,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:04:40,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:04:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:40,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:04:40,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:40,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:04:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:40,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977267263] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:04:40,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:04:40,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 15:04:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965768902] [2022-12-13 15:04:40,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:04:40,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 15:04:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 15:04:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:04:40,911 INFO L87 Difference]: Start difference. First operand 379 states and 596 transitions. Second operand has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-13 15:04:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:43,145 INFO L93 Difference]: Finished difference Result 1673 states and 2861 transitions. [2022-12-13 15:04:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 15:04:43,145 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 113 [2022-12-13 15:04:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:43,150 INFO L225 Difference]: With dead ends: 1673 [2022-12-13 15:04:43,150 INFO L226 Difference]: Without dead ends: 1325 [2022-12-13 15:04:43,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:04:43,151 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 3100 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 5383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:43,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 4000 Invalid, 5383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 4176 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:04:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-12-13 15:04:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 797. [2022-12-13 15:04:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 634 states have (on average 1.6261829652996846) internal successors, (1031), 640 states have internal predecessors, (1031), 139 states have call successors, (139), 19 states have call predecessors, (139), 23 states have return successors, (160), 137 states have call predecessors, (160), 138 states have call successors, (160) [2022-12-13 15:04:43,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1330 transitions. [2022-12-13 15:04:43,207 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1330 transitions. Word has length 113 [2022-12-13 15:04:43,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:43,208 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1330 transitions. [2022-12-13 15:04:43,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-13 15:04:43,208 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1330 transitions. [2022-12-13 15:04:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 15:04:43,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:43,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:43,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:04:43,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 15:04:43,412 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1999129128, now seen corresponding path program 1 times [2022-12-13 15:04:43,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:43,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997828223] [2022-12-13 15:04:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:43,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 15:04:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:04:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:04:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:04:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:04:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:04:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:43,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997828223] [2022-12-13 15:04:43,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997828223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:43,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:43,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373936580] [2022-12-13 15:04:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:43,531 INFO L87 Difference]: Start difference. First operand 797 states and 1330 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:44,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:44,456 INFO L93 Difference]: Finished difference Result 1999 states and 3429 transitions. [2022-12-13 15:04:44,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:44,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-12-13 15:04:44,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:44,461 INFO L225 Difference]: With dead ends: 1999 [2022-12-13 15:04:44,461 INFO L226 Difference]: Without dead ends: 1280 [2022-12-13 15:04:44,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:44,462 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1099 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:44,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1018 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 15:04:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2022-12-13 15:04:44,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1187. [2022-12-13 15:04:44,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 945 states have (on average 1.6412698412698412) internal successors, (1551), 951 states have internal predecessors, (1551), 218 states have call successors, (218), 19 states have call predecessors, (218), 23 states have return successors, (249), 216 states have call predecessors, (249), 217 states have call successors, (249) [2022-12-13 15:04:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 2018 transitions. [2022-12-13 15:04:44,539 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 2018 transitions. Word has length 116 [2022-12-13 15:04:44,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:44,539 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 2018 transitions. [2022-12-13 15:04:44,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 2018 transitions. [2022-12-13 15:04:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-13 15:04:44,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:44,543 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:44,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:04:44,543 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:44,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:44,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1684265169, now seen corresponding path program 1 times [2022-12-13 15:04:44,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:44,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909956928] [2022-12-13 15:04:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:44,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:04:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:04:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:04:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 15:04:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:04:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:04:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:44,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909956928] [2022-12-13 15:04:44,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909956928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:44,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:44,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:44,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559698861] [2022-12-13 15:04:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:44,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:44,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:44,624 INFO L87 Difference]: Start difference. First operand 1187 states and 2018 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:45,762 INFO L93 Difference]: Finished difference Result 2973 states and 5138 transitions. [2022-12-13 15:04:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:45,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2022-12-13 15:04:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:45,768 INFO L225 Difference]: With dead ends: 2973 [2022-12-13 15:04:45,768 INFO L226 Difference]: Without dead ends: 1917 [2022-12-13 15:04:45,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:45,770 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1033 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:45,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 997 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:04:45,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-12-13 15:04:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1824. [2022-12-13 15:04:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1463 states have (on average 1.6466165413533835) internal successors, (2409), 1469 states have internal predecessors, (2409), 337 states have call successors, (337), 19 states have call predecessors, (337), 23 states have return successors, (368), 335 states have call predecessors, (368), 336 states have call successors, (368) [2022-12-13 15:04:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 3114 transitions. [2022-12-13 15:04:45,903 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 3114 transitions. Word has length 117 [2022-12-13 15:04:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:45,904 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 3114 transitions. [2022-12-13 15:04:45,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 3114 transitions. [2022-12-13 15:04:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 15:04:45,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:45,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:45,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:04:45,909 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:45,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1668055978, now seen corresponding path program 1 times [2022-12-13 15:04:45,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:45,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522685564] [2022-12-13 15:04:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:04:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:04:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 15:04:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 15:04:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:04:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 15:04:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:45,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:45,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522685564] [2022-12-13 15:04:45,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522685564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:45,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:45,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:45,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092448548] [2022-12-13 15:04:45,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:45,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:45,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:45,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:45,989 INFO L87 Difference]: Start difference. First operand 1824 states and 3114 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:47,185 INFO L93 Difference]: Finished difference Result 4453 states and 7749 transitions. [2022-12-13 15:04:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-12-13 15:04:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:47,194 INFO L225 Difference]: With dead ends: 4453 [2022-12-13 15:04:47,194 INFO L226 Difference]: Without dead ends: 2895 [2022-12-13 15:04:47,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:47,197 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1009 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:47,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 995 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:04:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2022-12-13 15:04:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2802. [2022-12-13 15:04:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2279 states have (on average 1.6511627906976745) internal successors, (3763), 2285 states have internal predecessors, (3763), 499 states have call successors, (499), 19 states have call predecessors, (499), 23 states have return successors, (546), 497 states have call predecessors, (546), 498 states have call successors, (546) [2022-12-13 15:04:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4808 transitions. [2022-12-13 15:04:47,397 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4808 transitions. Word has length 118 [2022-12-13 15:04:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:47,397 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 4808 transitions. [2022-12-13 15:04:47,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4808 transitions. [2022-12-13 15:04:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 15:04:47,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:47,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:47,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:04:47,403 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -75332658, now seen corresponding path program 1 times [2022-12-13 15:04:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217077713] [2022-12-13 15:04:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 15:04:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:04:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:04:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:04:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:04:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:04:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:47,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:47,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217077713] [2022-12-13 15:04:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217077713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:47,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:47,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:47,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009082344] [2022-12-13 15:04:47,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:47,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:47,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:47,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:47,484 INFO L87 Difference]: Start difference. First operand 2802 states and 4808 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:48,679 INFO L93 Difference]: Finished difference Result 6792 states and 11884 transitions. [2022-12-13 15:04:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:48,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-12-13 15:04:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:48,692 INFO L225 Difference]: With dead ends: 6792 [2022-12-13 15:04:48,692 INFO L226 Difference]: Without dead ends: 4475 [2022-12-13 15:04:48,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:48,696 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1021 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:48,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 994 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 15:04:48,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2022-12-13 15:04:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4382. [2022-12-13 15:04:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 3614 states have (on average 1.6543995572772552) internal successors, (5979), 3620 states have internal predecessors, (5979), 744 states have call successors, (744), 19 states have call predecessors, (744), 23 states have return successors, (817), 742 states have call predecessors, (817), 743 states have call successors, (817) [2022-12-13 15:04:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 7540 transitions. [2022-12-13 15:04:49,004 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 7540 transitions. Word has length 119 [2022-12-13 15:04:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:49,005 INFO L495 AbstractCegarLoop]: Abstraction has 4382 states and 7540 transitions. [2022-12-13 15:04:49,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 7540 transitions. [2022-12-13 15:04:49,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-13 15:04:49,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:49,013 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:49,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:04:49,013 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:49,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:49,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1869318002, now seen corresponding path program 1 times [2022-12-13 15:04:49,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:49,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780433840] [2022-12-13 15:04:49,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:49,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:04:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:04:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:04:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 15:04:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:04:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:04:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:49,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:49,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780433840] [2022-12-13 15:04:49,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780433840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:49,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:49,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:49,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710163640] [2022-12-13 15:04:49,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:49,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:49,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:49,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:49,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:49,098 INFO L87 Difference]: Start difference. First operand 4382 states and 7540 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:50,611 INFO L93 Difference]: Finished difference Result 10963 states and 19213 transitions. [2022-12-13 15:04:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-12-13 15:04:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:50,641 INFO L225 Difference]: With dead ends: 10963 [2022-12-13 15:04:50,641 INFO L226 Difference]: Without dead ends: 7318 [2022-12-13 15:04:50,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:50,649 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1058 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:50,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1027 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:04:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7318 states. [2022-12-13 15:04:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7318 to 7225. [2022-12-13 15:04:51,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7225 states, 5964 states have (on average 1.6495640509725016) internal successors, (9838), 5970 states have internal predecessors, (9838), 1237 states have call successors, (1237), 19 states have call predecessors, (1237), 23 states have return successors, (1354), 1235 states have call predecessors, (1354), 1236 states have call successors, (1354) [2022-12-13 15:04:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 12429 transitions. [2022-12-13 15:04:51,168 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 12429 transitions. Word has length 120 [2022-12-13 15:04:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:51,168 INFO L495 AbstractCegarLoop]: Abstraction has 7225 states and 12429 transitions. [2022-12-13 15:04:51,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 12429 transitions. [2022-12-13 15:04:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 15:04:51,176 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:51,176 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:51,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:04:51,177 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1071149334, now seen corresponding path program 1 times [2022-12-13 15:04:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:51,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672963878] [2022-12-13 15:04:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:51,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:04:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:04:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:04:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 15:04:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:04:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:04:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:51,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672963878] [2022-12-13 15:04:51,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672963878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:51,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:51,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857693727] [2022-12-13 15:04:51,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:51,261 INFO L87 Difference]: Start difference. First operand 7225 states and 12429 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:52,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:52,966 INFO L93 Difference]: Finished difference Result 18383 states and 32177 transitions. [2022-12-13 15:04:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-12-13 15:04:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:52,996 INFO L225 Difference]: With dead ends: 18383 [2022-12-13 15:04:52,996 INFO L226 Difference]: Without dead ends: 12297 [2022-12-13 15:04:53,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:53,008 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1071 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:53,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1000 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 15:04:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12297 states. [2022-12-13 15:04:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12297 to 12204. [2022-12-13 15:04:53,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12204 states, 10121 states have (on average 1.6489477324375061) internal successors, (16689), 10127 states have internal predecessors, (16689), 2059 states have call successors, (2059), 19 states have call predecessors, (2059), 23 states have return successors, (2254), 2057 states have call predecessors, (2254), 2058 states have call successors, (2254) [2022-12-13 15:04:53,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12204 states to 12204 states and 21002 transitions. [2022-12-13 15:04:53,874 INFO L78 Accepts]: Start accepts. Automaton has 12204 states and 21002 transitions. Word has length 121 [2022-12-13 15:04:53,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:53,874 INFO L495 AbstractCegarLoop]: Abstraction has 12204 states and 21002 transitions. [2022-12-13 15:04:53,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:53,875 INFO L276 IsEmpty]: Start isEmpty. Operand 12204 states and 21002 transitions. [2022-12-13 15:04:53,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 15:04:53,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:53,884 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:53,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 15:04:53,884 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:53,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1919234284, now seen corresponding path program 1 times [2022-12-13 15:04:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:53,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197583761] [2022-12-13 15:04:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:04:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:04:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:04:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:04:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 15:04:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:04:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:53,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197583761] [2022-12-13 15:04:53,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197583761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:53,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:53,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101983808] [2022-12-13 15:04:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:53,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:53,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:53,955 INFO L87 Difference]: Start difference. First operand 12204 states and 21002 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:04:56,038 INFO L93 Difference]: Finished difference Result 29341 states and 51037 transitions. [2022-12-13 15:04:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:04:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-12-13 15:04:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:04:56,082 INFO L225 Difference]: With dead ends: 29341 [2022-12-13 15:04:56,082 INFO L226 Difference]: Without dead ends: 19250 [2022-12-13 15:04:56,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:04:56,098 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1022 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:04:56,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 969 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 15:04:56,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19250 states. [2022-12-13 15:04:57,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19250 to 19157. [2022-12-13 15:04:57,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19157 states, 15871 states have (on average 1.6230231239367399) internal successors, (25759), 15877 states have internal predecessors, (25759), 3262 states have call successors, (3262), 19 states have call predecessors, (3262), 23 states have return successors, (3601), 3260 states have call predecessors, (3601), 3261 states have call successors, (3601) [2022-12-13 15:04:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19157 states to 19157 states and 32622 transitions. [2022-12-13 15:04:57,605 INFO L78 Accepts]: Start accepts. Automaton has 19157 states and 32622 transitions. Word has length 122 [2022-12-13 15:04:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:04:57,605 INFO L495 AbstractCegarLoop]: Abstraction has 19157 states and 32622 transitions. [2022-12-13 15:04:57,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:04:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19157 states and 32622 transitions. [2022-12-13 15:04:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 15:04:57,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:04:57,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:04:57,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 15:04:57,615 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:04:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:04:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash 427103209, now seen corresponding path program 1 times [2022-12-13 15:04:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:04:57,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808740060] [2022-12-13 15:04:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:04:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:04:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:04:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:04:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:04:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:04:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:04:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:04:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:04:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:04:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:04:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 15:04:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 15:04:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:04:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:04:57,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808740060] [2022-12-13 15:04:57,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808740060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:04:57,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:04:57,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:04:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924367225] [2022-12-13 15:04:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:04:57,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:04:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:04:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:04:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:04:57,686 INFO L87 Difference]: Start difference. First operand 19157 states and 32622 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:05:01,054 INFO L93 Difference]: Finished difference Result 50773 states and 87955 transitions. [2022-12-13 15:05:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:05:01,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-12-13 15:05:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:05:01,128 INFO L225 Difference]: With dead ends: 50773 [2022-12-13 15:05:01,128 INFO L226 Difference]: Without dead ends: 34371 [2022-12-13 15:05:01,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:05:01,157 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1010 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:05:01,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 994 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 15:05:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34371 states. [2022-12-13 15:05:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34371 to 34278. [2022-12-13 15:05:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34278 states, 28542 states have (on average 1.619543129423306) internal successors, (46225), 28548 states have internal predecessors, (46225), 5712 states have call successors, (5712), 19 states have call predecessors, (5712), 23 states have return successors, (6325), 5710 states have call predecessors, (6325), 5711 states have call successors, (6325) [2022-12-13 15:05:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34278 states to 34278 states and 58262 transitions. [2022-12-13 15:05:03,700 INFO L78 Accepts]: Start accepts. Automaton has 34278 states and 58262 transitions. Word has length 123 [2022-12-13 15:05:03,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:05:03,701 INFO L495 AbstractCegarLoop]: Abstraction has 34278 states and 58262 transitions. [2022-12-13 15:05:03,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 34278 states and 58262 transitions. [2022-12-13 15:05:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 15:05:03,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:05:03,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:05:03,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 15:05:03,719 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:05:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:05:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1625053902, now seen corresponding path program 1 times [2022-12-13 15:05:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:05:03,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107983775] [2022-12-13 15:05:03,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:03,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:05:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:05:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:05:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:05:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:05:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:05:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:05:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:05:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:05:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:05:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:05:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:05:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:05:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:05:03,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:05:03,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107983775] [2022-12-13 15:05:03,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107983775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:05:03,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:05:03,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:05:03,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059471325] [2022-12-13 15:05:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:05:03,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:05:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:05:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:05:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:05:03,806 INFO L87 Difference]: Start difference. First operand 34278 states and 58262 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:05:09,106 INFO L93 Difference]: Finished difference Result 93645 states and 161354 transitions. [2022-12-13 15:05:09,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:05:09,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-12-13 15:05:09,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:05:09,301 INFO L225 Difference]: With dead ends: 93645 [2022-12-13 15:05:09,302 INFO L226 Difference]: Without dead ends: 63038 [2022-12-13 15:05:09,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:05:09,365 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 998 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:05:09,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1008 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:05:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63038 states. [2022-12-13 15:05:13,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63038 to 62945. [2022-12-13 15:05:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62945 states, 52696 states have (on average 1.6151131015636861) internal successors, (85110), 52702 states have internal predecessors, (85110), 10225 states have call successors, (10225), 19 states have call predecessors, (10225), 23 states have return successors, (11370), 10223 states have call predecessors, (11370), 10224 states have call successors, (11370) [2022-12-13 15:05:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62945 states to 62945 states and 106705 transitions. [2022-12-13 15:05:14,117 INFO L78 Accepts]: Start accepts. Automaton has 62945 states and 106705 transitions. Word has length 124 [2022-12-13 15:05:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:05:14,117 INFO L495 AbstractCegarLoop]: Abstraction has 62945 states and 106705 transitions. [2022-12-13 15:05:14,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 62945 states and 106705 transitions. [2022-12-13 15:05:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-13 15:05:14,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:05:14,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:05:14,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 15:05:14,131 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:05:14,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:05:14,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1369288023, now seen corresponding path program 1 times [2022-12-13 15:05:14,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:05:14,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708525683] [2022-12-13 15:05:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:05:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:05:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:05:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:05:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:05:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:05:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:05:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:05:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:05:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:05:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:05:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 15:05:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:05:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:05:14,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:05:14,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708525683] [2022-12-13 15:05:14,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708525683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:05:14,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:05:14,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:05:14,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413778541] [2022-12-13 15:05:14,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:05:14,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:05:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:05:14,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:05:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:05:14,214 INFO L87 Difference]: Start difference. First operand 62945 states and 106705 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:23,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:05:23,028 INFO L93 Difference]: Finished difference Result 118021 states and 203731 transitions. [2022-12-13 15:05:23,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:05:23,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-12-13 15:05:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:05:23,370 INFO L225 Difference]: With dead ends: 118021 [2022-12-13 15:05:23,370 INFO L226 Difference]: Without dead ends: 117911 [2022-12-13 15:05:23,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:05:23,409 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1007 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:05:23,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 997 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:05:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117911 states. [2022-12-13 15:05:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117911 to 117818. [2022-12-13 15:05:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117818 states, 99201 states have (on average 1.609641031844437) internal successors, (159678), 99207 states have internal predecessors, (159678), 18593 states have call successors, (18593), 19 states have call predecessors, (18593), 23 states have return successors, (20784), 18591 states have call predecessors, (20784), 18592 states have call successors, (20784) [2022-12-13 15:05:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117818 states to 117818 states and 199055 transitions. [2022-12-13 15:05:31,855 INFO L78 Accepts]: Start accepts. Automaton has 117818 states and 199055 transitions. Word has length 125 [2022-12-13 15:05:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:05:31,856 INFO L495 AbstractCegarLoop]: Abstraction has 117818 states and 199055 transitions. [2022-12-13 15:05:31,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:05:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 117818 states and 199055 transitions. [2022-12-13 15:05:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 15:05:31,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:05:31,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:05:31,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 15:05:31,873 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:05:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:05:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1554603955, now seen corresponding path program 1 times [2022-12-13 15:05:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:05:31,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870661030] [2022-12-13 15:05:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:05:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:05:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:05:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:05:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:05:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:05:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:05:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:05:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:05:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:05:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:05:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:05:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 15:05:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 15:05:32,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:05:32,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870661030] [2022-12-13 15:05:32,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870661030] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:05:32,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520782310] [2022-12-13 15:05:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:32,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:05:32,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:05:32,184 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:05:32,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:05:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:32,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 15:05:32,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:05:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 15:05:32,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:05:32,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520782310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:05:32,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:05:32,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2022-12-13 15:05:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141059515] [2022-12-13 15:05:32,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:05:32,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:05:32,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:05:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:05:32,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2022-12-13 15:05:32,568 INFO L87 Difference]: Start difference. First operand 117818 states and 199055 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:05:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:05:40,966 INFO L93 Difference]: Finished difference Result 118116 states and 199470 transitions. [2022-12-13 15:05:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 15:05:40,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 126 [2022-12-13 15:05:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:05:41,311 INFO L225 Difference]: With dead ends: 118116 [2022-12-13 15:05:41,311 INFO L226 Difference]: Without dead ends: 118012 [2022-12-13 15:05:41,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1609, Unknown=0, NotChecked=0, Total=1806 [2022-12-13 15:05:41,337 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 716 mSDsluCounter, 4004 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:05:41,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 4494 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:05:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118012 states. [2022-12-13 15:05:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118012 to 117957. [2022-12-13 15:05:49,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117957 states, 99307 states have (on average 1.6094031639260071) internal successors, (159825), 99315 states have internal predecessors, (159825), 18612 states have call successors, (18612), 30 states have call predecessors, (18612), 37 states have return successors, (20816), 18611 states have call predecessors, (20816), 18610 states have call successors, (20816) [2022-12-13 15:05:50,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117957 states to 117957 states and 199253 transitions. [2022-12-13 15:05:50,233 INFO L78 Accepts]: Start accepts. Automaton has 117957 states and 199253 transitions. Word has length 126 [2022-12-13 15:05:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:05:50,234 INFO L495 AbstractCegarLoop]: Abstraction has 117957 states and 199253 transitions. [2022-12-13 15:05:50,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:05:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 117957 states and 199253 transitions. [2022-12-13 15:05:50,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 15:05:50,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:05:50,252 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:05:50,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:05:50,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b091cfd-31bd-4430-884d-fe45330b3db7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:05:50,454 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:05:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:05:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1949186296, now seen corresponding path program 1 times [2022-12-13 15:05:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:05:50,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454674749] [2022-12-13 15:05:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:05:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:05:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:05:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:05:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:05:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:05:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:05:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:05:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:05:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:05:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:05:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:05:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:05:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:05:50,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:05:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454674749] [2022-12-13 15:05:50,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454674749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:05:50,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:05:50,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:05:50,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885610965] [2022-12-13 15:05:50,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:05:50,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:05:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:05:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:05:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:05:50,603 INFO L87 Difference]: Start difference. First operand 117957 states and 199253 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:06:08,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:06:08,242 INFO L93 Difference]: Finished difference Result 231763 states and 398211 transitions. [2022-12-13 15:06:08,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 15:06:08,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2022-12-13 15:06:08,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:06:08,963 INFO L225 Difference]: With dead ends: 231763 [2022-12-13 15:06:08,963 INFO L226 Difference]: Without dead ends: 231535 [2022-12-13 15:06:09,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2022-12-13 15:06:09,031 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 2280 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 835 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:06:09,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 1386 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [835 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:06:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231535 states. [2022-12-13 15:06:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231535 to 231157. [2022-12-13 15:06:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231157 states, 194647 states have (on average 1.6106438835430292) internal successors, (313507), 194662 states have internal predecessors, (313507), 36435 states have call successors, (36435), 57 states have call predecessors, (36435), 74 states have return successors, (38679), 36437 states have call predecessors, (38679), 36431 states have call successors, (38679) [2022-12-13 15:06:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231157 states to 231157 states and 388621 transitions. [2022-12-13 15:06:27,650 INFO L78 Accepts]: Start accepts. Automaton has 231157 states and 388621 transitions. Word has length 127 [2022-12-13 15:06:27,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:06:27,650 INFO L495 AbstractCegarLoop]: Abstraction has 231157 states and 388621 transitions. [2022-12-13 15:06:27,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 15:06:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 231157 states and 388621 transitions. [2022-12-13 15:06:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 15:06:27,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:06:27,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:06:27,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 15:06:27,679 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:06:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:06:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash 485115212, now seen corresponding path program 1 times [2022-12-13 15:06:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:06:27,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886568123] [2022-12-13 15:06:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:06:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:06:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:06:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:06:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:06:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:06:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:06:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:06:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:06:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:06:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:06:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:06:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:06:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:06:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:06:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:06:27,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:06:27,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886568123] [2022-12-13 15:06:27,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886568123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:06:27,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:06:27,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 15:06:27,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926467291] [2022-12-13 15:06:27,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:06:27,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 15:06:27,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:06:27,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 15:06:27,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:06:27,890 INFO L87 Difference]: Start difference. First operand 231157 states and 388621 transitions. Second operand has 16 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 7 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 15:06:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:06:45,609 INFO L93 Difference]: Finished difference Result 232429 states and 397182 transitions. [2022-12-13 15:06:45,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 15:06:45,609 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 7 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 127 [2022-12-13 15:06:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:06:46,306 INFO L225 Difference]: With dead ends: 232429 [2022-12-13 15:06:46,307 INFO L226 Difference]: Without dead ends: 231907 [2022-12-13 15:06:46,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=401, Invalid=1855, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 15:06:46,373 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1269 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 4839 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 5541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 4839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:06:46,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 2571 Invalid, 5541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 4839 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 15:06:46,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231907 states. [2022-12-13 15:07:03,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231907 to 231377. [2022-12-13 15:07:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231377 states, 194801 states have (on average 1.6103356758948877) internal successors, (313695), 194822 states have internal predecessors, (313695), 36491 states have call successors, (36491), 65 states have call predecessors, (36491), 84 states have return successors, (38749), 36489 states have call predecessors, (38749), 36479 states have call successors, (38749) [2022-12-13 15:07:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231377 states to 231377 states and 388935 transitions. [2022-12-13 15:07:04,988 INFO L78 Accepts]: Start accepts. Automaton has 231377 states and 388935 transitions. Word has length 127 [2022-12-13 15:07:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:07:04,989 INFO L495 AbstractCegarLoop]: Abstraction has 231377 states and 388935 transitions. [2022-12-13 15:07:04,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 7 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 15:07:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 231377 states and 388935 transitions. [2022-12-13 15:07:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 15:07:05,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:07:05,013 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:07:05,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 15:07:05,014 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:07:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:07:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 123423989, now seen corresponding path program 1 times [2022-12-13 15:07:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:07:05,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309037169] [2022-12-13 15:07:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:07:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:07:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:07:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:07:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:07:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:07:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:07:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:07:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:07:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:07:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:07:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:07:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:07:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:07:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:07:05,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:07:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309037169] [2022-12-13 15:07:05,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309037169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:07:05,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:07:05,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:07:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203738317] [2022-12-13 15:07:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:07:05,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:07:05,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:07:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:07:05,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:07:05,116 INFO L87 Difference]: Start difference. First operand 231377 states and 388935 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:07:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:07:21,541 INFO L93 Difference]: Finished difference Result 232181 states and 396600 transitions. [2022-12-13 15:07:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 15:07:21,542 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-12-13 15:07:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:07:22,357 INFO L225 Difference]: With dead ends: 232181 [2022-12-13 15:07:22,358 INFO L226 Difference]: Without dead ends: 231823 [2022-12-13 15:07:22,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2022-12-13 15:07:22,424 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 926 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:07:22,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1338 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 15:07:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231823 states. [2022-12-13 15:07:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231823 to 231321. [2022-12-13 15:07:40,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231321 states, 194769 states have (on average 1.610425683758709) internal successors, (313661), 194788 states have internal predecessors, (313661), 36471 states have call successors, (36471), 63 states have call predecessors, (36471), 80 states have return successors, (38705), 36469 states have call predecessors, (38705), 36459 states have call successors, (38705) [2022-12-13 15:07:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231321 states to 231321 states and 388837 transitions. [2022-12-13 15:07:41,705 INFO L78 Accepts]: Start accepts. Automaton has 231321 states and 388837 transitions. Word has length 127 [2022-12-13 15:07:41,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:07:41,705 INFO L495 AbstractCegarLoop]: Abstraction has 231321 states and 388837 transitions. [2022-12-13 15:07:41,705 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 15:07:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 231321 states and 388837 transitions. [2022-12-13 15:07:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-13 15:07:41,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:07:41,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:07:41,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 15:07:41,732 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:07:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:07:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 119898094, now seen corresponding path program 1 times [2022-12-13 15:07:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:07:41,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453757979] [2022-12-13 15:07:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:07:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:07:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:07:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:07:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:07:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:07:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:07:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:07:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:07:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:07:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:07:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:07:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:07:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:07:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:07:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:07:41,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:07:41,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453757979] [2022-12-13 15:07:41,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453757979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:07:41,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:07:41,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 15:07:41,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748408891] [2022-12-13 15:07:41,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:07:41,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 15:07:41,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:07:41,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 15:07:41,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:07:41,969 INFO L87 Difference]: Start difference. First operand 231321 states and 388837 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:08:01,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:08:01,753 INFO L93 Difference]: Finished difference Result 232583 states and 397132 transitions. [2022-12-13 15:08:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 15:08:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 128 [2022-12-13 15:08:01,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:08:02,449 INFO L225 Difference]: With dead ends: 232583 [2022-12-13 15:08:02,450 INFO L226 Difference]: Without dead ends: 231949 [2022-12-13 15:08:02,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=678, Invalid=3104, Unknown=0, NotChecked=0, Total=3782 [2022-12-13 15:08:02,520 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1964 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 5338 mSolverCounterSat, 949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 6287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 5338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:08:02,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 2366 Invalid, 6287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [949 Valid, 5338 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 15:08:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231949 states. [2022-12-13 15:08:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231949 to 231282. [2022-12-13 15:08:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231282 states, 194738 states have (on average 1.6104612350953589) internal successors, (313618), 194756 states have internal predecessors, (313618), 36465 states have call successors, (36465), 63 states have call predecessors, (36465), 78 states have return successors, (38693), 36462 states have call predecessors, (38693), 36453 states have call successors, (38693) [2022-12-13 15:08:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231282 states to 231282 states and 388776 transitions. [2022-12-13 15:08:22,074 INFO L78 Accepts]: Start accepts. Automaton has 231282 states and 388776 transitions. Word has length 128 [2022-12-13 15:08:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:08:22,074 INFO L495 AbstractCegarLoop]: Abstraction has 231282 states and 388776 transitions. [2022-12-13 15:08:22,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:08:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 231282 states and 388776 transitions. [2022-12-13 15:08:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 15:08:22,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:08:22,126 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 15:08:22,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 15:08:22,126 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:08:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:08:22,127 INFO L85 PathProgramCache]: Analyzing trace with hash -397756785, now seen corresponding path program 1 times [2022-12-13 15:08:22,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:08:22,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675985200] [2022-12-13 15:08:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:08:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:08:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:08:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:08:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:08:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:08:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:08:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:08:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:08:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:08:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:08:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:08:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:08:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 15:08:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:08:22,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:08:22,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675985200] [2022-12-13 15:08:22,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675985200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:08:22,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:08:22,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:08:22,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631555436] [2022-12-13 15:08:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:08:22,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:08:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:08:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:08:22,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:08:22,254 INFO L87 Difference]: Start difference. First operand 231282 states and 388776 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-13 15:08:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:08:38,789 INFO L93 Difference]: Finished difference Result 398748 states and 675623 transitions. [2022-12-13 15:08:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 15:08:38,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 137 [2022-12-13 15:08:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:08:38,791 INFO L225 Difference]: With dead ends: 398748 [2022-12-13 15:08:38,791 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 15:08:39,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-12-13 15:08:39,291 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1068 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:08:39,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 2530 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:08:39,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 15:08:39,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 15:08:39,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:39,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 15:08:39,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 137 [2022-12-13 15:08:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:08:39,321 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:08:39,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-13 15:08:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:08:39,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 15:08:39,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 15:08:39,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 15:08:39,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 15:08:50,555 WARN L233 SmtUtils]: Spent 11.07s on a formula simplification. DAG size of input: 85 DAG size of output: 84 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 15:11:50,821 WARN L233 SmtUtils]: Spent 3.00m on a formula simplification. DAG size of input: 1686 DAG size of output: 1685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 15:14:47,318 WARN L233 SmtUtils]: Spent 2.94m on a formula simplification. DAG size of input: 1680 DAG size of output: 1679 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)