./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ --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 bd6587ac6cf18c69f9c15caef5354ee5ad606346c35154ee0861ae3e169457d6 --- 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-dbf71c6-m [2022-10-17 10:32:39,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:32:39,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:32:39,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:32:39,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:32:39,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:32:39,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:32:39,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:32:39,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:32:39,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:32:39,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:32:39,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:32:39,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:32:39,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:32:39,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:32:39,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:32:39,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:32:39,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:32:39,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:32:39,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:32:39,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:32:39,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:32:39,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:32:39,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:32:39,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:32:39,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:32:39,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:32:39,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:32:39,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:32:39,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:32:39,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:32:39,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:32:39,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:32:39,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:32:39,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:32:39,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:32:39,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:32:39,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:32:39,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:32:39,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:32:39,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:32:39,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:32:39,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:32:39,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:32:39,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:32:39,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:32:39,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:32:39,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:32:39,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:32:39,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:32:39,157 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:32:39,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:32:39,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:32:39,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:32:39,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:32:39,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:32:39,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:32:39,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:32:39,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:32:39,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:32:39,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:32:39,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:32:39,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:32:39,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:32:39,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:32:39,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:32:39,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:32:39,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:32:39,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:32:39,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:32:39,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:32:39,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:32:39,164 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:32:39,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:32:39,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:32:39,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6587ac6cf18c69f9c15caef5354ee5ad606346c35154ee0861ae3e169457d6 [2022-10-17 10:32:39,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:32:39,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:32:39,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:32:39,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:32:39,514 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:32:39,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/email_spec0_product38.cil.c [2022-10-17 10:32:39,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/data/2ce6e3aaf/783b77599a3a4f7681d265c1df248abd/FLAGb16d93aee [2022-10-17 10:32:40,225 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:32:40,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c [2022-10-17 10:32:40,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/data/2ce6e3aaf/783b77599a3a4f7681d265c1df248abd/FLAGb16d93aee [2022-10-17 10:32:40,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/data/2ce6e3aaf/783b77599a3a4f7681d265c1df248abd [2022-10-17 10:32:40,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:32:40,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:32:40,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:32:40,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:32:40,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:32:40,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:32:40" (1/1) ... [2022-10-17 10:32:40,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d1c4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:40, skipping insertion in model container [2022-10-17 10:32:40,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:32:40" (1/1) ... [2022-10-17 10:32:40,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:32:40,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:32:40,841 WARN L230 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_a35fb854-0ce5-499e-9ebf-635a428a53dc/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c[9373,9386] [2022-10-17 10:32:41,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:32:41,099 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:32:41,124 WARN L230 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_a35fb854-0ce5-499e-9ebf-635a428a53dc/sv-benchmarks/c/product-lines/email_spec0_product38.cil.c[9373,9386] [2022-10-17 10:32:41,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:32:41,235 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:32:41,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41 WrapperNode [2022-10-17 10:32:41,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:32:41,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:32:41,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:32:41,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:32:41,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,323 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 49, calls inlined = 46, statements flattened = 870 [2022-10-17 10:32:41,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:32:41,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:32:41,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:32:41,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:32:41,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:32:41,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:32:41,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:32:41,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:32:41,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (1/1) ... [2022-10-17 10:32:41,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:32:41,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:41,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:32:41,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:32:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-10-17 10:32:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-10-17 10:32:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-10-17 10:32:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-10-17 10:32:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-10-17 10:32:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-10-17 10:32:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-10-17 10:32:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-10-17 10:32:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-10-17 10:32:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-10-17 10:32:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-10-17 10:32:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-10-17 10:32:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-10-17 10:32:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-10-17 10:32:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-10-17 10:32:41,540 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-10-17 10:32:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-10-17 10:32:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-10-17 10:32:41,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-10-17 10:32:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:32:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-10-17 10:32:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-10-17 10:32:41,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-10-17 10:32:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-10-17 10:32:41,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-10-17 10:32:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-10-17 10:32:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-10-17 10:32:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-10-17 10:32:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-10-17 10:32:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-10-17 10:32:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-10-17 10:32:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-10-17 10:32:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-10-17 10:32:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-10-17 10:32:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:32:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-10-17 10:32:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-10-17 10:32:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-10-17 10:32:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-10-17 10:32:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:32:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:32:41,765 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:32:41,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:32:42,694 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:32:42,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:32:42,718 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:32:42,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:32:42 BoogieIcfgContainer [2022-10-17 10:32:42,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:32:42,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:32:42,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:32:42,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:32:42,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:32:40" (1/3) ... [2022-10-17 10:32:42,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e14310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:32:42, skipping insertion in model container [2022-10-17 10:32:42,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:41" (2/3) ... [2022-10-17 10:32:42,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e14310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:32:42, skipping insertion in model container [2022-10-17 10:32:42,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:32:42" (3/3) ... [2022-10-17 10:32:42,733 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product38.cil.c [2022-10-17 10:32:42,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:32:42,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:32:42,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:32:42,858 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;@2ca6ef5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:32:42,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:32:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 246 states have (on average 1.5731707317073171) internal successors, (387), 249 states have internal predecessors, (387), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-17 10:32:42,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-17 10:32:42,901 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:42,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:42,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:42,906 INFO L85 PathProgramCache]: Analyzing trace with hash -816330075, now seen corresponding path program 1 times [2022-10-17 10:32:42,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:42,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207223312] [2022-10-17 10:32:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:32:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:32:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:32:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:32:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:32:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:32:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:32:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:32:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 10:32:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:32:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 10:32:43,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:43,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207223312] [2022-10-17 10:32:43,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207223312] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:43,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354706136] [2022-10-17 10:32:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:43,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:43,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:43,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:43,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:32:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:32:44,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 10:32:44,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:32:44,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354706136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:44,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:32:44,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-10-17 10:32:44,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172325192] [2022-10-17 10:32:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:32:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:32:44,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:32:44,137 INFO L87 Difference]: Start difference. First operand has 313 states, 246 states have (on average 1.5731707317073171) internal successors, (387), 249 states have internal predecessors, (387), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:44,189 INFO L93 Difference]: Finished difference Result 433 states and 652 transitions. [2022-10-17 10:32:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:32:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-10-17 10:32:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:44,206 INFO L225 Difference]: With dead ends: 433 [2022-10-17 10:32:44,207 INFO L226 Difference]: Without dead ends: 306 [2022-10-17 10:32:44,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:32:44,219 INFO L413 NwaCegarLoop]: 477 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, 477 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 [2022-10-17 10:32:44,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:32:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-10-17 10:32:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2022-10-17 10:32:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 240 states have (on average 1.5666666666666667) internal successors, (376), 242 states have internal predecessors, (376), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-17 10:32:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 469 transitions. [2022-10-17 10:32:44,295 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 469 transitions. Word has length 102 [2022-10-17 10:32:44,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 469 transitions. [2022-10-17 10:32:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 469 transitions. [2022-10-17 10:32:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-17 10:32:44,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:44,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:44,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:32:44,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 10:32:44,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash 818093159, now seen corresponding path program 1 times [2022-10-17 10:32:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:44,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621939290] [2022-10-17 10:32:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:44,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:32:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:32:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:44,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:32:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:32:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-17 10:32:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:32:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:32:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:32:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:32:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:32:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 10:32:45,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:45,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621939290] [2022-10-17 10:32:45,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621939290] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:45,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122074743] [2022-10-17 10:32:45,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:45,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:45,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:45,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:45,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:32:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:32:45,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 10:32:45,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:32:45,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122074743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:45,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:32:45,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:32:45,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511029267] [2022-10-17 10:32:45,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:45,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:32:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:32:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:32:45,432 INFO L87 Difference]: Start difference. First operand 306 states and 469 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:45,492 INFO L93 Difference]: Finished difference Result 423 states and 630 transitions. [2022-10-17 10:32:45,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:32:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2022-10-17 10:32:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:45,501 INFO L225 Difference]: With dead ends: 423 [2022-10-17 10:32:45,501 INFO L226 Difference]: Without dead ends: 309 [2022-10-17 10:32:45,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:32:45,509 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 932 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 [2022-10-17 10:32:45,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 932 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:32:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-17 10:32:45,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 308. [2022-10-17 10:32:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 242 states have (on average 1.56198347107438) internal successors, (378), 244 states have internal predecessors, (378), 47 states have call successors, (47), 18 states have call predecessors, (47), 18 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-17 10:32:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 471 transitions. [2022-10-17 10:32:45,552 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 471 transitions. Word has length 103 [2022-10-17 10:32:45,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:45,554 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 471 transitions. [2022-10-17 10:32:45,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 471 transitions. [2022-10-17 10:32:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-17 10:32:45,558 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:45,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:45,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:32:45,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-17 10:32:45,773 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:45,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash 695803230, now seen corresponding path program 1 times [2022-10-17 10:32:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:45,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813749840] [2022-10-17 10:32:45,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:45,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:32:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:32:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:32:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-17 10:32:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 10:32:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:32:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:32:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:32:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:32:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:32:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:32:46,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813749840] [2022-10-17 10:32:46,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813749840] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888935559] [2022-10-17 10:32:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:46,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:46,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:46,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:46,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:32:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:32:46,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 10:32:46,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:32:46,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888935559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:46,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:32:46,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:32:46,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416613388] [2022-10-17 10:32:46,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:46,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:32:46,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:46,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:32:46,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:32:46,341 INFO L87 Difference]: Start difference. First operand 308 states and 471 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:46,382 INFO L93 Difference]: Finished difference Result 664 states and 1034 transitions. [2022-10-17 10:32:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:32:46,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2022-10-17 10:32:46,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:46,390 INFO L225 Difference]: With dead ends: 664 [2022-10-17 10:32:46,391 INFO L226 Difference]: Without dead ends: 383 [2022-10-17 10:32:46,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:32:46,395 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 134 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 909 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 [2022-10-17 10:32:46,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 909 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:32:46,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-10-17 10:32:46,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 375. [2022-10-17 10:32:46,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 295 states have (on average 1.583050847457627) internal successors, (467), 297 states have internal predecessors, (467), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-10-17 10:32:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 588 transitions. [2022-10-17 10:32:46,443 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 588 transitions. Word has length 109 [2022-10-17 10:32:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:46,446 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 588 transitions. [2022-10-17 10:32:46,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:32:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 588 transitions. [2022-10-17 10:32:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-17 10:32:46,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:46,454 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:46,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:32:46,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:46,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1217435756, now seen corresponding path program 1 times [2022-10-17 10:32:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:46,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232703565] [2022-10-17 10:32:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:32:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:32:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:32:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:32:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:32:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:32:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:32:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:32:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:32:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-17 10:32:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:32:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:46,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232703565] [2022-10-17 10:32:46,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232703565] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:46,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228969236] [2022-10-17 10:32:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:46,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:46,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:46,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:46,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:32:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:32:47,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:32:47,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:32:47,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228969236] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:47,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:32:47,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-17 10:32:47,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880522969] [2022-10-17 10:32:47,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:47,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:32:47,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:47,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:32:47,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:32:47,250 INFO L87 Difference]: Start difference. First operand 375 states and 588 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:47,319 INFO L93 Difference]: Finished difference Result 741 states and 1166 transitions. [2022-10-17 10:32:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:32:47,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2022-10-17 10:32:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:47,323 INFO L225 Difference]: With dead ends: 741 [2022-10-17 10:32:47,323 INFO L226 Difference]: Without dead ends: 377 [2022-10-17 10:32:47,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:32:47,326 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 152 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1665 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 [2022-10-17 10:32:47,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1665 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:32:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-10-17 10:32:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2022-10-17 10:32:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 296 states have (on average 1.5810810810810811) internal successors, (468), 299 states have internal predecessors, (468), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 59 states have call predecessors, (62), 60 states have call successors, (62) [2022-10-17 10:32:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 591 transitions. [2022-10-17 10:32:47,351 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 591 transitions. Word has length 110 [2022-10-17 10:32:47,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:47,351 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 591 transitions. [2022-10-17 10:32:47,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 591 transitions. [2022-10-17 10:32:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-17 10:32:47,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:47,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:47,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:32:47,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:47,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:47,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:47,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1459654362, now seen corresponding path program 1 times [2022-10-17 10:32:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:47,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709618839] [2022-10-17 10:32:47,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:47,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:32:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-17 10:32:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:32:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:32:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:32:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:32:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-17 10:32:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:32:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:32:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:32:47,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:47,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709618839] [2022-10-17 10:32:47,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709618839] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:47,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272051646] [2022-10-17 10:32:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:47,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:47,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:47,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:32:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:32:48,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:32:48,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:32:48,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272051646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:48,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:32:48,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-10-17 10:32:48,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078173743] [2022-10-17 10:32:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:48,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:32:48,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:48,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:32:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:32:48,178 INFO L87 Difference]: Start difference. First operand 377 states and 591 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:48,255 INFO L93 Difference]: Finished difference Result 743 states and 1171 transitions. [2022-10-17 10:32:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:32:48,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2022-10-17 10:32:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:48,259 INFO L225 Difference]: With dead ends: 743 [2022-10-17 10:32:48,259 INFO L226 Difference]: Without dead ends: 379 [2022-10-17 10:32:48,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:32:48,262 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 151 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1654 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 [2022-10-17 10:32:48,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1654 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:32:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-10-17 10:32:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-10-17 10:32:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 297 states have (on average 1.5791245791245792) internal successors, (469), 301 states have internal predecessors, (469), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 59 states have call predecessors, (67), 60 states have call successors, (67) [2022-10-17 10:32:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 597 transitions. [2022-10-17 10:32:48,291 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 597 transitions. Word has length 111 [2022-10-17 10:32:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:48,291 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 597 transitions. [2022-10-17 10:32:48,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:48,292 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 597 transitions. [2022-10-17 10:32:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-17 10:32:48,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:48,296 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:48,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:32:48,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:48,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1498093858, now seen corresponding path program 1 times [2022-10-17 10:32:48,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:48,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687997639] [2022-10-17 10:32:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:48,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:32:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:32:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:32:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:32:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:32:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:32:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-17 10:32:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:32:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-17 10:32:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:32:48,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:48,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687997639] [2022-10-17 10:32:48,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687997639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:48,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:32:48,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:32:48,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851799818] [2022-10-17 10:32:48,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:48,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:32:48,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:48,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:32:48,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:32:48,765 INFO L87 Difference]: Start difference. First operand 379 states and 597 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:50,747 INFO L93 Difference]: Finished difference Result 863 states and 1377 transitions. [2022-10-17 10:32:50,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:32:50,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2022-10-17 10:32:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:50,756 INFO L225 Difference]: With dead ends: 863 [2022-10-17 10:32:50,756 INFO L226 Difference]: Without dead ends: 507 [2022-10-17 10:32:50,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:32:50,770 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 1042 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:32:50,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1539 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-17 10:32:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-10-17 10:32:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 379. [2022-10-17 10:32:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 297 states have (on average 1.5791245791245792) internal successors, (469), 301 states have internal predecessors, (469), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 59 states have call predecessors, (66), 60 states have call successors, (66) [2022-10-17 10:32:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 596 transitions. [2022-10-17 10:32:50,845 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 596 transitions. Word has length 112 [2022-10-17 10:32:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:50,847 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 596 transitions. [2022-10-17 10:32:50,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 596 transitions. [2022-10-17 10:32:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-17 10:32:50,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:50,850 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] [2022-10-17 10:32:50,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:32:50,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:50,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:50,851 INFO L85 PathProgramCache]: Analyzing trace with hash -155101294, now seen corresponding path program 2 times [2022-10-17 10:32:50,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:50,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358834460] [2022-10-17 10:32:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:32:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:32:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:32:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:32:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:32:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:32:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 10:32:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:32:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:32:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 10:32:51,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:51,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358834460] [2022-10-17 10:32:51,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358834460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:51,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:32:51,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:32:51,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827791686] [2022-10-17 10:32:51,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:51,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:32:51,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:32:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:32:51,088 INFO L87 Difference]: Start difference. First operand 379 states and 596 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:52,948 INFO L93 Difference]: Finished difference Result 865 states and 1380 transitions. [2022-10-17 10:32:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:32:52,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2022-10-17 10:32:52,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:52,954 INFO L225 Difference]: With dead ends: 865 [2022-10-17 10:32:52,955 INFO L226 Difference]: Without dead ends: 509 [2022-10-17 10:32:52,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:32:52,958 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 1037 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:32:52,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1540 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-17 10:32:52,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-10-17 10:32:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 381. [2022-10-17 10:32:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 298 states have (on average 1.5771812080536913) internal successors, (470), 303 states have internal predecessors, (470), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 59 states have call predecessors, (68), 60 states have call successors, (68) [2022-10-17 10:32:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 599 transitions. [2022-10-17 10:32:52,999 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 599 transitions. Word has length 113 [2022-10-17 10:32:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:53,000 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 599 transitions. [2022-10-17 10:32:53,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:32:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 599 transitions. [2022-10-17 10:32:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-17 10:32:53,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:53,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:53,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:32:53,004 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash 625579385, now seen corresponding path program 1 times [2022-10-17 10:32:53,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:53,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026495739] [2022-10-17 10:32:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:32:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:32:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 10:32:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:32:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:32:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:32:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:32:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-17 10:32:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:32:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:32:53,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:53,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026495739] [2022-10-17 10:32:53,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026495739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:53,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:32:53,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:32:53,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503417769] [2022-10-17 10:32:53,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:53,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:32:53,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:53,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:32:53,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:32:53,323 INFO L87 Difference]: Start difference. First operand 381 states and 599 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-10-17 10:32:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:55,775 INFO L93 Difference]: Finished difference Result 863 states and 1375 transitions. [2022-10-17 10:32:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:32:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2022-10-17 10:32:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:55,786 INFO L225 Difference]: With dead ends: 863 [2022-10-17 10:32:55,786 INFO L226 Difference]: Without dead ends: 509 [2022-10-17 10:32:55,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:32:55,789 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1176 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3207 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 3207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:32:55,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1899 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 3207 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-17 10:32:55,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-10-17 10:32:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 381. [2022-10-17 10:32:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 298 states have (on average 1.5771812080536913) internal successors, (470), 303 states have internal predecessors, (470), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 59 states have call predecessors, (67), 60 states have call successors, (67) [2022-10-17 10:32:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 598 transitions. [2022-10-17 10:32:55,845 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 598 transitions. Word has length 114 [2022-10-17 10:32:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:55,845 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 598 transitions. [2022-10-17 10:32:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-10-17 10:32:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 598 transitions. [2022-10-17 10:32:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-17 10:32:55,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:55,850 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] [2022-10-17 10:32:55,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:32:55,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:55,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1289921317, now seen corresponding path program 2 times [2022-10-17 10:32:55,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:55,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618807738] [2022-10-17 10:32:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:55,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:32:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:32:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:32:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-17 10:32:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:32:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:32:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:32:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:32:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 10:32:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:32:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:56,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618807738] [2022-10-17 10:32:56,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618807738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:32:56,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:32:56,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:32:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429583011] [2022-10-17 10:32:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:32:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:32:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:32:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:32:56,139 INFO L87 Difference]: Start difference. First operand 381 states and 598 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-10-17 10:32:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:32:58,557 INFO L93 Difference]: Finished difference Result 865 states and 1381 transitions. [2022-10-17 10:32:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:32:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2022-10-17 10:32:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:32:58,567 INFO L225 Difference]: With dead ends: 865 [2022-10-17 10:32:58,568 INFO L226 Difference]: Without dead ends: 511 [2022-10-17 10:32:58,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:32:58,573 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 1173 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3233 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 3233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:32:58,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 1898 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 3233 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-17 10:32:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-10-17 10:32:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 383. [2022-10-17 10:32:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 299 states have (on average 1.5752508361204014) internal successors, (471), 305 states have internal predecessors, (471), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 59 states have call predecessors, (72), 60 states have call successors, (72) [2022-10-17 10:32:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 604 transitions. [2022-10-17 10:32:58,622 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 604 transitions. Word has length 115 [2022-10-17 10:32:58,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:32:58,623 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 604 transitions. [2022-10-17 10:32:58,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-10-17 10:32:58,624 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 604 transitions. [2022-10-17 10:32:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-17 10:32:58,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:32:58,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:32:58,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:32:58,628 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:32:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:32:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1545546924, now seen corresponding path program 1 times [2022-10-17 10:32:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:32:58,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449117241] [2022-10-17 10:32:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:32:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:32:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:32:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:32:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:32:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:32:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:32:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:32:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:32:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:32:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:32:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:32:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-17 10:32:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:32:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:32:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:32:58,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449117241] [2022-10-17 10:32:58,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449117241] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:32:58,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550897794] [2022-10-17 10:32:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:32:58,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:32:58,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:58,793 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:32:58,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:32:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:32:59,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:32:59,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:32:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:32:59,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:32:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:32:59,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550897794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:32:59,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:32:59,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-10-17 10:32:59,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567466799] [2022-10-17 10:32:59,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:32:59,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:32:59,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:32:59,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:32:59,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:32:59,191 INFO L87 Difference]: Start difference. First operand 383 states and 604 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 10:33:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:01,367 INFO L93 Difference]: Finished difference Result 1067 states and 1774 transitions. [2022-10-17 10:33:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:33:01,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 116 [2022-10-17 10:33:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:33:01,378 INFO L225 Difference]: With dead ends: 1067 [2022-10-17 10:33:01,378 INFO L226 Difference]: Without dead ends: 953 [2022-10-17 10:33:01,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:33:01,385 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 1308 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:33:01,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2028 Invalid, 2755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-17 10:33:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-10-17 10:33:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 801. [2022-10-17 10:33:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 638 states have (on average 1.6363636363636365) internal successors, (1044), 644 states have internal predecessors, (1044), 140 states have call successors, (140), 18 states have call predecessors, (140), 22 states have return successors, (161), 138 states have call predecessors, (161), 139 states have call successors, (161) [2022-10-17 10:33:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1345 transitions. [2022-10-17 10:33:01,501 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1345 transitions. Word has length 116 [2022-10-17 10:33:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:33:01,502 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1345 transitions. [2022-10-17 10:33:01,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 10:33:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1345 transitions. [2022-10-17 10:33:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-17 10:33:01,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:01,510 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:33:01,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:33:01,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35fb854-0ce5-499e-9ebf-635a428a53dc/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-17 10:33:01,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:01,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash -749441865, now seen corresponding path program 1 times [2022-10-17 10:33:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:01,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594703563] [2022-10-17 10:33:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:33:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:33:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:33:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:33:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:33:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:33:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:33:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:33:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:33:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:33:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:33:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:33:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:33:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:33:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594703563] [2022-10-17 10:33:01,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594703563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:01,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:01,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:33:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524635600] [2022-10-17 10:33:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:01,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:33:01,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:33:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:33:01,854 INFO L87 Difference]: Start difference. First operand 801 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:03,258 INFO L93 Difference]: Finished difference Result 2085 states and 3575 transitions. [2022-10-17 10:33:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:33:03,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2022-10-17 10:33:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:33:03,270 INFO L225 Difference]: With dead ends: 2085 [2022-10-17 10:33:03,271 INFO L226 Difference]: Without dead ends: 1352 [2022-10-17 10:33:03,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:33:03,275 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1035 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:33:03,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1379 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-17 10:33:03,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2022-10-17 10:33:03,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1216. [2022-10-17 10:33:03,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 974 states have (on average 1.646817248459959) internal successors, (1604), 980 states have internal predecessors, (1604), 219 states have call successors, (219), 18 states have call predecessors, (219), 22 states have return successors, (250), 217 states have call predecessors, (250), 218 states have call successors, (250) [2022-10-17 10:33:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 2073 transitions. [2022-10-17 10:33:03,413 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 2073 transitions. Word has length 122 [2022-10-17 10:33:03,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:33:03,414 INFO L495 AbstractCegarLoop]: Abstraction has 1216 states and 2073 transitions. [2022-10-17 10:33:03,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 2073 transitions. [2022-10-17 10:33:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-17 10:33:03,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:03,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:33:03,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:33:03,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:03,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash 780186974, now seen corresponding path program 1 times [2022-10-17 10:33:03,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:03,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866876408] [2022-10-17 10:33:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:03,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:33:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:33:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:33:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:33:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:33:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:33:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:33:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:33:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:33:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:33:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:33:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 10:33:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:33:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:33:03,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:03,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866876408] [2022-10-17 10:33:03,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866876408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:03,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:03,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:33:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379473022] [2022-10-17 10:33:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:03,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:33:03,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:03,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:33:03,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:33:03,551 INFO L87 Difference]: Start difference. First operand 1216 states and 2073 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:05,054 INFO L93 Difference]: Finished difference Result 3099 states and 5353 transitions. [2022-10-17 10:33:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:33:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-10-17 10:33:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:33:05,073 INFO L225 Difference]: With dead ends: 3099 [2022-10-17 10:33:05,074 INFO L226 Difference]: Without dead ends: 2004 [2022-10-17 10:33:05,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:33:05,081 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 1031 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:33:05,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1353 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-17 10:33:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2022-10-17 10:33:05,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1868. [2022-10-17 10:33:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1507 states have (on average 1.6529528865295289) internal successors, (2491), 1513 states have internal predecessors, (2491), 338 states have call successors, (338), 18 states have call predecessors, (338), 22 states have return successors, (369), 336 states have call predecessors, (369), 337 states have call successors, (369) [2022-10-17 10:33:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3198 transitions. [2022-10-17 10:33:05,297 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3198 transitions. Word has length 123 [2022-10-17 10:33:05,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:33:05,298 INFO L495 AbstractCegarLoop]: Abstraction has 1868 states and 3198 transitions. [2022-10-17 10:33:05,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:05,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3198 transitions. [2022-10-17 10:33:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-17 10:33:05,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:05,313 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:33:05,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:33:05,314 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1999073525, now seen corresponding path program 1 times [2022-10-17 10:33:05,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:05,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318528177] [2022-10-17 10:33:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:05,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:33:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:33:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:33:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:33:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:33:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:33:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:33:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:33:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:33:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:33:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:33:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 10:33:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:33:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:33:05,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:05,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318528177] [2022-10-17 10:33:05,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318528177] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:05,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:05,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:33:05,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066679417] [2022-10-17 10:33:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:05,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:33:05,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:05,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:33:05,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:33:05,441 INFO L87 Difference]: Start difference. First operand 1868 states and 3198 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:07,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:07,102 INFO L93 Difference]: Finished difference Result 4629 states and 8055 transitions. [2022-10-17 10:33:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:33:07,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-10-17 10:33:07,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:33:07,135 INFO L225 Difference]: With dead ends: 4629 [2022-10-17 10:33:07,135 INFO L226 Difference]: Without dead ends: 3007 [2022-10-17 10:33:07,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:33:07,143 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 1031 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:33:07,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1352 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-17 10:33:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2022-10-17 10:33:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2871. [2022-10-17 10:33:07,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2348 states have (on average 1.658006814310051) internal successors, (3893), 2354 states have internal predecessors, (3893), 500 states have call successors, (500), 18 states have call predecessors, (500), 22 states have return successors, (547), 498 states have call predecessors, (547), 499 states have call successors, (547) [2022-10-17 10:33:07,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 4940 transitions. [2022-10-17 10:33:07,459 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 4940 transitions. Word has length 124 [2022-10-17 10:33:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:33:07,460 INFO L495 AbstractCegarLoop]: Abstraction has 2871 states and 4940 transitions. [2022-10-17 10:33:07,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 4940 transitions. [2022-10-17 10:33:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-17 10:33:07,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:07,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:33:07,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 10:33:07,479 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1077032387, now seen corresponding path program 1 times [2022-10-17 10:33:07,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:07,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214743386] [2022-10-17 10:33:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:33:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:33:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:33:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:33:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:33:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:33:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:33:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:33:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:33:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:33:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-17 10:33:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-17 10:33:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-17 10:33:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 10:33:07,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:07,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214743386] [2022-10-17 10:33:07,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214743386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:07,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:07,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:33:07,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666860769] [2022-10-17 10:33:07,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:07,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:33:07,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:33:07,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:33:07,607 INFO L87 Difference]: Start difference. First operand 2871 states and 4940 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:33:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:09,165 INFO L93 Difference]: Finished difference Result 7053 states and 12344 transitions. [2022-10-17 10:33:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:33:09,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-10-17 10:33:09,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.