./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN --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 cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 --- 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-6b4ec56 [2022-11-20 12:18:57,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:18:57,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:18:57,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:18:57,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:18:57,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:18:57,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:18:57,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:18:57,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:18:57,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:18:57,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:18:57,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:18:57,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:18:57,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:18:57,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:18:57,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:18:57,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:18:57,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:18:57,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:18:57,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:18:57,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:18:57,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:18:57,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:18:57,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:18:57,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:18:57,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:18:57,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:18:57,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:18:57,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:18:57,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:18:57,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:18:57,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:18:57,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:18:57,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:18:57,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:18:57,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:18:57,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:18:57,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:18:57,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:18:57,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:18:57,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:18:57,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:18:57,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:18:57,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:18:57,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:18:57,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:18:57,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:18:57,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:18:57,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:18:57,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:18:57,663 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:18:57,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:18:57,664 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:18:57,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:18:57,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:18:57,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:18:57,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:18:57,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:18:57,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:18:57,666 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:18:57,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:18:57,666 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:18:57,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:18:57,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:18:57,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:18:57,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:18:57,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:18:57,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:18:57,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:18:57,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:18:57,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:18:57,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:18:57,670 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:18:57,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:18:57,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:18:57,671 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_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 [2022-11-20 12:18:57,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:18:57,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:18:57,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:18:57,951 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:18:57,951 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:18:57,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2022-11-20 12:19:00,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:19:01,275 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:19:01,275 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2022-11-20 12:19:01,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/data/ece5050f4/5577a386e9d649208ae93aeecf22b858/FLAGefcd6c9df [2022-11-20 12:19:01,333 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/data/ece5050f4/5577a386e9d649208ae93aeecf22b858 [2022-11-20 12:19:01,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:19:01,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:19:01,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:19:01,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:19:01,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:19:01,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:01" (1/1) ... [2022-11-20 12:19:01,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26230a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:01, skipping insertion in model container [2022-11-20 12:19:01,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:01" (1/1) ... [2022-11-20 12:19:01,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:19:01,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:19:01,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2022-11-20 12:19:02,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:19:02,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:19:02,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2022-11-20 12:19:02,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:19:02,256 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:19:02,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02 WrapperNode [2022-11-20 12:19:02,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:19:02,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:19:02,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:19:02,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:19:02,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,379 INFO L138 Inliner]: procedures = 151, calls = 283, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1312 [2022-11-20 12:19:02,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:19:02,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:19:02,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:19:02,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:19:02,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:19:02,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:19:02,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:19:02,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:19:02,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (1/1) ... [2022-11-20 12:19:02,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:19:02,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:02,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:19:02,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:19:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 12:19:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 12:19:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-11-20 12:19:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-11-20 12:19:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-11-20 12:19:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-11-20 12:19:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 12:19:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 12:19:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 12:19:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 12:19:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 12:19:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 12:19:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 12:19:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 12:19:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-11-20 12:19:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-11-20 12:19:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 12:19:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 12:19:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-11-20 12:19:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-11-20 12:19:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 12:19:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 12:19:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-20 12:19:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-20 12:19:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 12:19:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 12:19:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-11-20 12:19:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-11-20 12:19:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-11-20 12:19:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-11-20 12:19:02,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 12:19:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 12:19:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-20 12:19:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-20 12:19:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 12:19:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 12:19:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 12:19:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-11-20 12:19:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-11-20 12:19:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 12:19:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 12:19:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-20 12:19:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-20 12:19:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 12:19:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 12:19:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-11-20 12:19:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-11-20 12:19:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:19:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-20 12:19:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-20 12:19:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 12:19:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 12:19:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-11-20 12:19:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-11-20 12:19:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-11-20 12:19:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-11-20 12:19:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-11-20 12:19:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-11-20 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 12:19:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 12:19:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 12:19:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 12:19:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 12:19:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 12:19:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 12:19:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-20 12:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-20 12:19:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 12:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 12:19:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 12:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 12:19:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-11-20 12:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-11-20 12:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-11-20 12:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-11-20 12:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 12:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 12:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 12:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 12:19:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:19:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 12:19:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 12:19:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-11-20 12:19:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-11-20 12:19:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-11-20 12:19:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-11-20 12:19:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 12:19:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 12:19:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:19:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:19:03,013 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:19:03,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:19:04,121 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:19:04,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:19:04,139 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:19:04,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:04 BoogieIcfgContainer [2022-11-20 12:19:04,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:19:04,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:19:04,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:19:04,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:19:04,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:19:01" (1/3) ... [2022-11-20 12:19:04,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6411e09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:04, skipping insertion in model container [2022-11-20 12:19:04,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:02" (2/3) ... [2022-11-20 12:19:04,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6411e09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:04, skipping insertion in model container [2022-11-20 12:19:04,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:04" (3/3) ... [2022-11-20 12:19:04,158 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_productSimulator.cil.c [2022-11-20 12:19:04,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:19:04,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:19:04,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:19:04,285 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;@56e1e2b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:19:04,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:19:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 448 states have (on average 1.515625) internal successors, (679), 468 states have internal predecessors, (679), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2022-11-20 12:19:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 12:19:04,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:04,316 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:04,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:04,327 INFO L85 PathProgramCache]: Analyzing trace with hash -567184417, now seen corresponding path program 1 times [2022-11-20 12:19:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:04,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468013937] [2022-11-20 12:19:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:04,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:19:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 12:19:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 12:19:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 12:19:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:19:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 12:19:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:19:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:19:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 12:19:04,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:04,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468013937] [2022-11-20 12:19:04,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468013937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:05,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:05,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:19:05,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550359356] [2022-11-20 12:19:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:05,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:19:05,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:19:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:19:05,052 INFO L87 Difference]: Start difference. First operand has 603 states, 448 states have (on average 1.515625) internal successors, (679), 468 states have internal predecessors, (679), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:19:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:07,653 INFO L93 Difference]: Finished difference Result 1078 states and 1627 transitions. [2022-11-20 12:19:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:19:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-11-20 12:19:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:07,680 INFO L225 Difference]: With dead ends: 1078 [2022-11-20 12:19:07,680 INFO L226 Difference]: Without dead ends: 737 [2022-11-20 12:19:07,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:19:07,692 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1345 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:07,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 1037 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 12:19:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-20 12:19:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 596. [2022-11-20 12:19:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 442 states have (on average 1.51131221719457) internal successors, (668), 461 states have internal predecessors, (668), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-11-20 12:19:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 887 transitions. [2022-11-20 12:19:07,897 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 887 transitions. Word has length 133 [2022-11-20 12:19:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:07,898 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 887 transitions. [2022-11-20 12:19:07,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:19:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 887 transitions. [2022-11-20 12:19:07,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 12:19:07,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:07,914 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:07,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:19:07,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:07,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1887142888, now seen corresponding path program 1 times [2022-11-20 12:19:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:07,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276762103] [2022-11-20 12:19:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:07,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:19:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 12:19:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 12:19:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 12:19:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:19:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:19:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:19:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:19:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 12:19:08,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:08,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276762103] [2022-11-20 12:19:08,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276762103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:08,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:08,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:19:08,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322278467] [2022-11-20 12:19:08,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:08,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:19:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:19:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:19:08,359 INFO L87 Difference]: Start difference. First operand 596 states and 887 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:19:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:11,482 INFO L93 Difference]: Finished difference Result 1297 states and 1957 transitions. [2022-11-20 12:19:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:19:11,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 134 [2022-11-20 12:19:11,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:11,489 INFO L225 Difference]: With dead ends: 1297 [2022-11-20 12:19:11,489 INFO L226 Difference]: Without dead ends: 737 [2022-11-20 12:19:11,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:19:11,493 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1373 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 3450 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 4094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 3450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:11,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1784 Invalid, 4094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 3450 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:19:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-20 12:19:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 596. [2022-11-20 12:19:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 442 states have (on average 1.495475113122172) internal successors, (661), 461 states have internal predecessors, (661), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-11-20 12:19:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 880 transitions. [2022-11-20 12:19:11,563 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 880 transitions. Word has length 134 [2022-11-20 12:19:11,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:11,564 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 880 transitions. [2022-11-20 12:19:11,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:19:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 880 transitions. [2022-11-20 12:19:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 12:19:11,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:11,568 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:11,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:19:11,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1817414579, now seen corresponding path program 1 times [2022-11-20 12:19:11,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:11,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560515677] [2022-11-20 12:19:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:19:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:19:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 12:19:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:19:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 12:19:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:19:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 12:19:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:19:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 12:19:11,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:11,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560515677] [2022-11-20 12:19:11,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560515677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:11,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:11,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:19:11,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642574863] [2022-11-20 12:19:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:11,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:19:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:19:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:19:11,853 INFO L87 Difference]: Start difference. First operand 596 states and 880 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:19:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:14,139 INFO L93 Difference]: Finished difference Result 1303 states and 1978 transitions. [2022-11-20 12:19:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:19:14,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 139 [2022-11-20 12:19:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:14,148 INFO L225 Difference]: With dead ends: 1303 [2022-11-20 12:19:14,149 INFO L226 Difference]: Without dead ends: 738 [2022-11-20 12:19:14,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:14,152 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2058 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:14,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 968 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 12:19:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-11-20 12:19:14,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 597. [2022-11-20 12:19:14,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 444 states have (on average 1.4842342342342343) internal successors, (659), 461 states have internal predecessors, (659), 108 states have call successors, (108), 44 states have call predecessors, (108), 44 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-20 12:19:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 874 transitions. [2022-11-20 12:19:14,209 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 874 transitions. Word has length 139 [2022-11-20 12:19:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:14,209 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 874 transitions. [2022-11-20 12:19:14,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:19:14,210 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 874 transitions. [2022-11-20 12:19:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 12:19:14,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:14,213 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:14,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:19:14,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:14,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:14,215 INFO L85 PathProgramCache]: Analyzing trace with hash -633923939, now seen corresponding path program 1 times [2022-11-20 12:19:14,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:14,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853759203] [2022-11-20 12:19:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:14,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 12:19:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:19:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 12:19:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 12:19:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 12:19:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 12:19:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 12:19:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 12:19:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:19:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-20 12:19:14,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:14,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853759203] [2022-11-20 12:19:14,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853759203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:14,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:14,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:19:14,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439017208] [2022-11-20 12:19:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:14,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:19:14,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:14,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:19:14,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:19:14,441 INFO L87 Difference]: Start difference. First operand 597 states and 874 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:19:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:16,681 INFO L93 Difference]: Finished difference Result 1296 states and 1952 transitions. [2022-11-20 12:19:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:19:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2022-11-20 12:19:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:16,689 INFO L225 Difference]: With dead ends: 1296 [2022-11-20 12:19:16,689 INFO L226 Difference]: Without dead ends: 735 [2022-11-20 12:19:16,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:16,703 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2024 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:16,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 988 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [811 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 12:19:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-20 12:19:16,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 595. [2022-11-20 12:19:16,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 444 states have (on average 1.4774774774774775) internal successors, (656), 459 states have internal predecessors, (656), 106 states have call successors, (106), 44 states have call predecessors, (106), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-20 12:19:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 867 transitions. [2022-11-20 12:19:16,792 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 867 transitions. Word has length 149 [2022-11-20 12:19:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:16,792 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 867 transitions. [2022-11-20 12:19:16,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:19:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 867 transitions. [2022-11-20 12:19:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 12:19:16,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:16,798 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:16,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:19:16,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:16,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:16,800 INFO L85 PathProgramCache]: Analyzing trace with hash 982930644, now seen corresponding path program 1 times [2022-11-20 12:19:16,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:16,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503038410] [2022-11-20 12:19:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:19:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:19:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 12:19:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:19:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 12:19:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:19:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:19:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:19:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-20 12:19:17,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:17,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503038410] [2022-11-20 12:19:17,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503038410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:17,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:17,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:19:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734891884] [2022-11-20 12:19:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:17,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:19:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:19:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:19:17,015 INFO L87 Difference]: Start difference. First operand 595 states and 867 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:19:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:19,118 INFO L93 Difference]: Finished difference Result 1287 states and 1905 transitions. [2022-11-20 12:19:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:19:19,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2022-11-20 12:19:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:19,126 INFO L225 Difference]: With dead ends: 1287 [2022-11-20 12:19:19,126 INFO L226 Difference]: Without dead ends: 738 [2022-11-20 12:19:19,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:19,133 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 2035 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:19,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 918 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 12:19:19,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-11-20 12:19:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 592. [2022-11-20 12:19:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 444 states have (on average 1.4527027027027026) internal successors, (645), 454 states have internal predecessors, (645), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-20 12:19:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 850 transitions. [2022-11-20 12:19:19,202 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 850 transitions. Word has length 150 [2022-11-20 12:19:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:19,203 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 850 transitions. [2022-11-20 12:19:19,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:19:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 850 transitions. [2022-11-20 12:19:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 12:19:19,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:19,208 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:19,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:19:19,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 45386734, now seen corresponding path program 1 times [2022-11-20 12:19:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:19,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862730475] [2022-11-20 12:19:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:19,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 12:19:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:19:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:19:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 12:19:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:19:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:19:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 12:19:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 12:19:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 12:19:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-20 12:19:19,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:19,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862730475] [2022-11-20 12:19:19,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862730475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:19:19,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517671018] [2022-11-20 12:19:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:19,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:19,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:19,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:19:19,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:19:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:19:20,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 12:19:20,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:20,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517671018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:20,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:19:20,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-20 12:19:20,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198582116] [2022-11-20 12:19:20,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:20,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:19:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:20,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:19:20,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:20,185 INFO L87 Difference]: Start difference. First operand 592 states and 850 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:20,301 INFO L93 Difference]: Finished difference Result 919 states and 1301 transitions. [2022-11-20 12:19:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:19:20,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 168 [2022-11-20 12:19:20,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:20,306 INFO L225 Difference]: With dead ends: 919 [2022-11-20 12:19:20,306 INFO L226 Difference]: Without dead ends: 595 [2022-11-20 12:19:20,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:20,309 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 1 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1690 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 [2022-11-20 12:19:20,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1690 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:19:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-20 12:19:20,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2022-11-20 12:19:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 446 states have (on average 1.4506726457399104) internal successors, (647), 456 states have internal predecessors, (647), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-20 12:19:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 852 transitions. [2022-11-20 12:19:20,365 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 852 transitions. Word has length 168 [2022-11-20 12:19:20,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:20,367 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 852 transitions. [2022-11-20 12:19:20,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:20,368 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 852 transitions. [2022-11-20 12:19:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-20 12:19:20,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:20,371 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:20,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:20,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:20,579 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:20,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1242161006, now seen corresponding path program 1 times [2022-11-20 12:19:20,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:20,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040056753] [2022-11-20 12:19:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:20,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 12:19:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:19:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:19:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:19:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 12:19:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 12:19:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:19:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-20 12:19:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-20 12:19:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:19:21,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:21,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040056753] [2022-11-20 12:19:21,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040056753] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:19:21,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421882397] [2022-11-20 12:19:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:21,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:21,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:21,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:19:21,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:19:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:21,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:19:21,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 12:19:21,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:21,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421882397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:21,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:19:21,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-20 12:19:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427581036] [2022-11-20 12:19:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:21,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:19:21,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:19:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:21,476 INFO L87 Difference]: Start difference. First operand 594 states and 852 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:21,544 INFO L93 Difference]: Finished difference Result 1208 states and 1765 transitions. [2022-11-20 12:19:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:19:21,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2022-11-20 12:19:21,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:21,549 INFO L225 Difference]: With dead ends: 1208 [2022-11-20 12:19:21,549 INFO L226 Difference]: Without dead ends: 692 [2022-11-20 12:19:21,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:21,552 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 165 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1672 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 [2022-11-20 12:19:21,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1672 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:19:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-11-20 12:19:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 684. [2022-11-20 12:19:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 522 states have (on average 1.4655172413793103) internal successors, (765), 532 states have internal predecessors, (765), 117 states have call successors, (117), 44 states have call predecessors, (117), 44 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-20 12:19:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 998 transitions. [2022-11-20 12:19:21,610 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 998 transitions. Word has length 176 [2022-11-20 12:19:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:21,610 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 998 transitions. [2022-11-20 12:19:21,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 998 transitions. [2022-11-20 12:19:21,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 12:19:21,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:21,615 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:21,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:21,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 12:19:21,822 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:21,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1421540224, now seen corresponding path program 1 times [2022-11-20 12:19:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808739038] [2022-11-20 12:19:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:21,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 12:19:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:19:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:19:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 12:19:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 12:19:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 12:19:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 12:19:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 12:19:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-20 12:19:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,218 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:19:22,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:22,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808739038] [2022-11-20 12:19:22,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808739038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:19:22,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657094571] [2022-11-20 12:19:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:22,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:22,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:19:22,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:19:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:22,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 12:19:22,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 12:19:22,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:22,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657094571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:22,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:19:22,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-11-20 12:19:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20850484] [2022-11-20 12:19:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:22,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:19:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:19:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:19:22,766 INFO L87 Difference]: Start difference. First operand 684 states and 998 transitions. Second operand has 8 states, 6 states have (on average 17.0) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:23,026 INFO L93 Difference]: Finished difference Result 1315 states and 1933 transitions. [2022-11-20 12:19:23,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:19:23,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 17.0) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 177 [2022-11-20 12:19:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:23,031 INFO L225 Difference]: With dead ends: 1315 [2022-11-20 12:19:23,031 INFO L226 Difference]: Without dead ends: 686 [2022-11-20 12:19:23,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:19:23,034 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 363 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5436 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:23,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 5436 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:19:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-11-20 12:19:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2022-11-20 12:19:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 534 states have internal predecessors, (766), 117 states have call successors, (117), 44 states have call predecessors, (117), 45 states have return successors, (118), 115 states have call predecessors, (118), 116 states have call successors, (118) [2022-11-20 12:19:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1001 transitions. [2022-11-20 12:19:23,129 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1001 transitions. Word has length 177 [2022-11-20 12:19:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:23,129 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 1001 transitions. [2022-11-20 12:19:23,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 17.0) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1001 transitions. [2022-11-20 12:19:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 12:19:23,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:23,134 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:23,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:23,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 12:19:23,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:23,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1756071536, now seen corresponding path program 1 times [2022-11-20 12:19:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:23,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875177534] [2022-11-20 12:19:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:23,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:19:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:19:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 12:19:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:19:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:19:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 12:19:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 12:19:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 12:19:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-20 12:19:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:23,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875177534] [2022-11-20 12:19:23,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875177534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:19:23,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486494121] [2022-11-20 12:19:23,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:23,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:23,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:23,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:19:23,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:19:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:24,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:19:24,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 12:19:24,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:24,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486494121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:24,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:19:24,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2022-11-20 12:19:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035388988] [2022-11-20 12:19:24,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:24,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:19:24,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:24,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:19:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:19:24,228 INFO L87 Difference]: Start difference. First operand 686 states and 1001 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 12:19:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:24,453 INFO L93 Difference]: Finished difference Result 1316 states and 1937 transitions. [2022-11-20 12:19:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:19:24,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 178 [2022-11-20 12:19:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:24,458 INFO L225 Difference]: With dead ends: 1316 [2022-11-20 12:19:24,458 INFO L226 Difference]: Without dead ends: 688 [2022-11-20 12:19:24,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:19:24,461 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 361 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3770 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:24,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 3770 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:19:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-20 12:19:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2022-11-20 12:19:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 524 states have (on average 1.463740458015267) internal successors, (767), 536 states have internal predecessors, (767), 117 states have call successors, (117), 44 states have call predecessors, (117), 46 states have return successors, (123), 115 states have call predecessors, (123), 116 states have call successors, (123) [2022-11-20 12:19:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1007 transitions. [2022-11-20 12:19:24,528 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1007 transitions. Word has length 178 [2022-11-20 12:19:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:24,529 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 1007 transitions. [2022-11-20 12:19:24,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 12:19:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1007 transitions. [2022-11-20 12:19:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-20 12:19:24,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:24,533 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:24,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:24,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:24,741 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:24,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1664245019, now seen corresponding path program 1 times [2022-11-20 12:19:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:24,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448569901] [2022-11-20 12:19:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:24,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:24,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:24,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 12:19:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:19:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 12:19:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 12:19:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 12:19:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 12:19:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 12:19:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:19:25,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:25,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448569901] [2022-11-20 12:19:25,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448569901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:25,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:25,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:19:25,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936937598] [2022-11-20 12:19:25,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:25,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:19:25,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:25,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:19:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:25,186 INFO L87 Difference]: Start difference. First operand 688 states and 1007 transitions. Second operand has 12 states, 10 states have (on average 10.0) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:29,845 INFO L93 Difference]: Finished difference Result 1448 states and 2165 transitions. [2022-11-20 12:19:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:19:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.0) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 179 [2022-11-20 12:19:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:29,850 INFO L225 Difference]: With dead ends: 1448 [2022-11-20 12:19:29,851 INFO L226 Difference]: Without dead ends: 832 [2022-11-20 12:19:29,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:19:29,854 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 2176 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5821 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 6682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 5821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:29,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 2220 Invalid, 6682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [861 Valid, 5821 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 12:19:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-11-20 12:19:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 688. [2022-11-20 12:19:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 524 states have (on average 1.463740458015267) internal successors, (767), 536 states have internal predecessors, (767), 117 states have call successors, (117), 44 states have call predecessors, (117), 46 states have return successors, (122), 115 states have call predecessors, (122), 116 states have call successors, (122) [2022-11-20 12:19:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1006 transitions. [2022-11-20 12:19:29,930 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1006 transitions. Word has length 179 [2022-11-20 12:19:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:29,930 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 1006 transitions. [2022-11-20 12:19:29,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.0) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1006 transitions. [2022-11-20 12:19:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-20 12:19:29,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:29,935 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:29,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:19:29,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1373252677, now seen corresponding path program 2 times [2022-11-20 12:19:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:29,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507363327] [2022-11-20 12:19:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:19:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:19:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:19:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:19:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 12:19:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:19:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 12:19:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:19:30,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:30,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507363327] [2022-11-20 12:19:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507363327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:30,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:30,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:19:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852145868] [2022-11-20 12:19:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:30,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:19:30,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:30,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:19:30,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:30,309 INFO L87 Difference]: Start difference. First operand 688 states and 1006 transitions. Second operand has 12 states, 10 states have (on average 10.1) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:34,889 INFO L93 Difference]: Finished difference Result 1450 states and 2168 transitions. [2022-11-20 12:19:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:19:34,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 180 [2022-11-20 12:19:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:34,895 INFO L225 Difference]: With dead ends: 1450 [2022-11-20 12:19:34,895 INFO L226 Difference]: Without dead ends: 834 [2022-11-20 12:19:34,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:19:34,898 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 2183 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5652 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 6536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 5652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:34,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 2220 Invalid, 6536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [884 Valid, 5652 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 12:19:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-11-20 12:19:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 690. [2022-11-20 12:19:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 538 states have internal predecessors, (768), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (124), 115 states have call predecessors, (124), 116 states have call successors, (124) [2022-11-20 12:19:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1009 transitions. [2022-11-20 12:19:34,986 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1009 transitions. Word has length 180 [2022-11-20 12:19:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:34,986 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1009 transitions. [2022-11-20 12:19:34,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1009 transitions. [2022-11-20 12:19:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 12:19:34,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:34,991 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:34,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:19:34,992 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash -349890644, now seen corresponding path program 1 times [2022-11-20 12:19:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:34,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355853726] [2022-11-20 12:19:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 12:19:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 12:19:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:19:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 12:19:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-20 12:19:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-20 12:19:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 12:19:35,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355853726] [2022-11-20 12:19:35,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355853726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:35,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:35,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:19:35,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027796307] [2022-11-20 12:19:35,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:35,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:19:35,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:35,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:19:35,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:19:35,390 INFO L87 Difference]: Start difference. First operand 690 states and 1009 transitions. Second operand has 12 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:39,858 INFO L93 Difference]: Finished difference Result 1448 states and 2165 transitions. [2022-11-20 12:19:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 12:19:39,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2022-11-20 12:19:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:39,863 INFO L225 Difference]: With dead ends: 1448 [2022-11-20 12:19:39,864 INFO L226 Difference]: Without dead ends: 832 [2022-11-20 12:19:39,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2022-11-20 12:19:39,866 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 2183 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5615 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 6496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 5615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:39,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 2220 Invalid, 6496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 5615 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 12:19:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-11-20 12:19:39,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 690. [2022-11-20 12:19:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 538 states have internal predecessors, (768), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (124), 115 states have call predecessors, (124), 116 states have call successors, (124) [2022-11-20 12:19:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1009 transitions. [2022-11-20 12:19:39,948 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1009 transitions. Word has length 181 [2022-11-20 12:19:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:39,949 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1009 transitions. [2022-11-20 12:19:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.2) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1009 transitions. [2022-11-20 12:19:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 12:19:39,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:39,953 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:39,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:19:39,954 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:39,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash 707947434, now seen corresponding path program 1 times [2022-11-20 12:19:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:39,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263195715] [2022-11-20 12:19:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:39,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 12:19:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 12:19:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:19:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 12:19:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-20 12:19:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-20 12:19:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-20 12:19:40,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:40,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263195715] [2022-11-20 12:19:40,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263195715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:40,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:40,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:19:40,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106862273] [2022-11-20 12:19:40,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:40,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:19:40,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:40,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:19:40,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:40,301 INFO L87 Difference]: Start difference. First operand 690 states and 1009 transitions. Second operand has 13 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:44,977 INFO L93 Difference]: Finished difference Result 1445 states and 2159 transitions. [2022-11-20 12:19:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 12:19:44,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2022-11-20 12:19:44,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:44,983 INFO L225 Difference]: With dead ends: 1445 [2022-11-20 12:19:44,983 INFO L226 Difference]: Without dead ends: 832 [2022-11-20 12:19:44,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:19:44,986 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1979 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 6677 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 7489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 6677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:44,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2636 Invalid, 7489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [812 Valid, 6677 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 12:19:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-11-20 12:19:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 690. [2022-11-20 12:19:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 538 states have internal predecessors, (768), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (123), 115 states have call predecessors, (123), 116 states have call successors, (123) [2022-11-20 12:19:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1008 transitions. [2022-11-20 12:19:45,065 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1008 transitions. Word has length 181 [2022-11-20 12:19:45,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:45,065 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1008 transitions. [2022-11-20 12:19:45,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1008 transitions. [2022-11-20 12:19:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 12:19:45,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:45,069 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:19:45,070 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1086892493, now seen corresponding path program 2 times [2022-11-20 12:19:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:45,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993213648] [2022-11-20 12:19:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 12:19:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 12:19:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 12:19:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-20 12:19:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-20 12:19:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-20 12:19:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-20 12:19:45,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993213648] [2022-11-20 12:19:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993213648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:19:45,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81401043] [2022-11-20 12:19:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:45,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:19:45,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:19:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:45,405 INFO L87 Difference]: Start difference. First operand 690 states and 1008 transitions. Second operand has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:49,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:49,975 INFO L93 Difference]: Finished difference Result 1447 states and 2165 transitions. [2022-11-20 12:19:49,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 12:19:49,976 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 182 [2022-11-20 12:19:49,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:49,982 INFO L225 Difference]: With dead ends: 1447 [2022-11-20 12:19:49,982 INFO L226 Difference]: Without dead ends: 834 [2022-11-20 12:19:49,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:19:49,985 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1998 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 6644 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 7462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 6644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:49,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 2636 Invalid, 7462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 6644 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 12:19:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-11-20 12:19:50,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 692. [2022-11-20 12:19:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.461977186311787) internal successors, (769), 540 states have internal predecessors, (769), 117 states have call successors, (117), 44 states have call predecessors, (117), 48 states have return successors, (128), 115 states have call predecessors, (128), 116 states have call successors, (128) [2022-11-20 12:19:50,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2022-11-20 12:19:50,067 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 182 [2022-11-20 12:19:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:50,067 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2022-11-20 12:19:50,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 12:19:50,068 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2022-11-20 12:19:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 12:19:50,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:50,071 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:50,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:19:50,072 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:50,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:50,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1325701733, now seen corresponding path program 1 times [2022-11-20 12:19:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:50,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815570823] [2022-11-20 12:19:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:19:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 12:19:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 12:19:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 12:19:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-20 12:19:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:19:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:19:50,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:50,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815570823] [2022-11-20 12:19:50,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815570823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:19:50,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180393294] [2022-11-20 12:19:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:50,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:19:50,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:50,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:19:50,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:19:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:50,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:19:50,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:19:50,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:19:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:19:50,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180393294] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:19:50,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:19:50,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-20 12:19:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856439235] [2022-11-20 12:19:50,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:19:50,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:19:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:50,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:19:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:19:50,829 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 12:19:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:54,591 INFO L93 Difference]: Finished difference Result 1721 states and 2648 transitions. [2022-11-20 12:19:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:19:54,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2022-11-20 12:19:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:54,599 INFO L225 Difference]: With dead ends: 1721 [2022-11-20 12:19:54,599 INFO L226 Difference]: Without dead ends: 1397 [2022-11-20 12:19:54,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:19:54,601 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2306 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 3891 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 4883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 3891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:54,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 2308 Invalid, 4883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 3891 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 12:19:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-11-20 12:19:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1231. [2022-11-20 12:19:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 986 states have (on average 1.5141987829614605) internal successors, (1493), 1000 states have internal predecessors, (1493), 196 states have call successors, (196), 44 states have call predecessors, (196), 48 states have return successors, (217), 194 states have call predecessors, (217), 195 states have call successors, (217) [2022-11-20 12:19:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1906 transitions. [2022-11-20 12:19:54,732 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1906 transitions. Word has length 183 [2022-11-20 12:19:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:54,732 INFO L495 AbstractCegarLoop]: Abstraction has 1231 states and 1906 transitions. [2022-11-20 12:19:54,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 12:19:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1906 transitions. [2022-11-20 12:19:54,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 12:19:54,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:54,739 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:54,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 12:19:54,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82625a16-86aa-4484-9635-ac649dd86aaf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 12:19:54,946 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:54,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:54,947 INFO L85 PathProgramCache]: Analyzing trace with hash 974573443, now seen corresponding path program 1 times [2022-11-20 12:19:54,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:54,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817046503] [2022-11-20 12:19:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:54,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 12:19:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 12:19:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:19:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-20 12:19:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 12:19:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-20 12:19:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:19:55,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:55,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817046503] [2022-11-20 12:19:55,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817046503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:55,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:55,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:19:55,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088353283] [2022-11-20 12:19:55,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:55,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:19:55,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:55,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:19:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:19:55,122 INFO L87 Difference]: Start difference. First operand 1231 states and 1906 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:57,883 INFO L93 Difference]: Finished difference Result 2978 states and 4732 transitions. [2022-11-20 12:19:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:19:57,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-20 12:19:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:57,894 INFO L225 Difference]: With dead ends: 2978 [2022-11-20 12:19:57,894 INFO L226 Difference]: Without dead ends: 1882 [2022-11-20 12:19:57,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:19:57,898 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1961 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:57,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 1411 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:19:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2022-11-20 12:19:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1732. [2022-11-20 12:19:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1408 states have (on average 1.5262784090909092) internal successors, (2149), 1422 states have internal predecessors, (2149), 275 states have call successors, (275), 44 states have call predecessors, (275), 48 states have return successors, (306), 273 states have call predecessors, (306), 274 states have call successors, (306) [2022-11-20 12:19:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2730 transitions. [2022-11-20 12:19:58,112 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2730 transitions. Word has length 187 [2022-11-20 12:19:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:58,112 INFO L495 AbstractCegarLoop]: Abstraction has 1732 states and 2730 transitions. [2022-11-20 12:19:58,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:19:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2730 transitions. [2022-11-20 12:19:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-20 12:19:58,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:58,122 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:58,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:19:58,123 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -334877615, now seen corresponding path program 1 times [2022-11-20 12:19:58,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:19:58,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83608169] [2022-11-20 12:19:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:58,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:19:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:19:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:19:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:19:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:19:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:19:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:19:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:19:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:19:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:19:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:19:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:19:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:19:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:19:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:19:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:19:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 12:19:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:19:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:19:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-20 12:19:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-20 12:19:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-20 12:19:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:19:58,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:19:58,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83608169] [2022-11-20 12:19:58,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83608169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:58,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:58,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:19:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697726296] [2022-11-20 12:19:58,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:19:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:19:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:19:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:19:58,308 INFO L87 Difference]: Start difference. First operand 1732 states and 2730 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:01,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:01,058 INFO L93 Difference]: Finished difference Result 4225 states and 6789 transitions. [2022-11-20 12:20:01,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2022-11-20 12:20:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:01,072 INFO L225 Difference]: With dead ends: 4225 [2022-11-20 12:20:01,072 INFO L226 Difference]: Without dead ends: 2691 [2022-11-20 12:20:01,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:01,078 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1983 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 901 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:01,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 1374 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [901 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:20:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-11-20 12:20:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2541. [2022-11-20 12:20:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2098 states have (on average 1.5390848427073403) internal successors, (3229), 2112 states have internal predecessors, (3229), 394 states have call successors, (394), 44 states have call predecessors, (394), 48 states have return successors, (425), 392 states have call predecessors, (425), 393 states have call successors, (425) [2022-11-20 12:20:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 4048 transitions. [2022-11-20 12:20:01,361 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 4048 transitions. Word has length 188 [2022-11-20 12:20:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:01,361 INFO L495 AbstractCegarLoop]: Abstraction has 2541 states and 4048 transitions. [2022-11-20 12:20:01,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 4048 transitions. [2022-11-20 12:20:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-20 12:20:01,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:01,374 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:01,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:20:01,375 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1622690774, now seen corresponding path program 1 times [2022-11-20 12:20:01,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:01,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859609765] [2022-11-20 12:20:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:20:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 12:20:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 12:20:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-20 12:20:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-20 12:20:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-20 12:20:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:01,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859609765] [2022-11-20 12:20:01,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859609765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:01,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:01,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442983979] [2022-11-20 12:20:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:01,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:01,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:01,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:01,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:01,539 INFO L87 Difference]: Start difference. First operand 2541 states and 4048 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:04,371 INFO L93 Difference]: Finished difference Result 6124 states and 9946 transitions. [2022-11-20 12:20:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2022-11-20 12:20:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:04,391 INFO L225 Difference]: With dead ends: 6124 [2022-11-20 12:20:04,392 INFO L226 Difference]: Without dead ends: 3938 [2022-11-20 12:20:04,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:04,399 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1957 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:04,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 1376 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:20:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-11-20 12:20:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3788. [2022-11-20 12:20:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3788 states, 3183 states have (on average 1.5497957901350927) internal successors, (4933), 3197 states have internal predecessors, (4933), 556 states have call successors, (556), 44 states have call predecessors, (556), 48 states have return successors, (603), 554 states have call predecessors, (603), 555 states have call successors, (603) [2022-11-20 12:20:04,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 6092 transitions. [2022-11-20 12:20:04,758 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 6092 transitions. Word has length 189 [2022-11-20 12:20:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:04,759 INFO L495 AbstractCegarLoop]: Abstraction has 3788 states and 6092 transitions. [2022-11-20 12:20:04,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:04,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 6092 transitions. [2022-11-20 12:20:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:20:04,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:04,773 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:04,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:20:04,773 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:04,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash -983290919, now seen corresponding path program 1 times [2022-11-20 12:20:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:04,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259425066] [2022-11-20 12:20:04,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:04,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 12:20:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:20:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 12:20:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-20 12:20:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:20:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 12:20:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:04,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:04,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259425066] [2022-11-20 12:20:04,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259425066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:04,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:04,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:04,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821227265] [2022-11-20 12:20:04,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:04,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:04,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:04,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:04,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:04,939 INFO L87 Difference]: Start difference. First operand 3788 states and 6092 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:07,892 INFO L93 Difference]: Finished difference Result 9126 states and 14955 transitions. [2022-11-20 12:20:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:07,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2022-11-20 12:20:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:07,920 INFO L225 Difference]: With dead ends: 9126 [2022-11-20 12:20:07,920 INFO L226 Difference]: Without dead ends: 5952 [2022-11-20 12:20:07,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:07,928 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 1978 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:07,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1372 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:20:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-11-20 12:20:08,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5802. [2022-11-20 12:20:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 4952 states have (on average 1.5587641357027464) internal successors, (7719), 4966 states have internal predecessors, (7719), 801 states have call successors, (801), 44 states have call predecessors, (801), 48 states have return successors, (874), 799 states have call predecessors, (874), 800 states have call successors, (874) [2022-11-20 12:20:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 9394 transitions. [2022-11-20 12:20:08,361 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 9394 transitions. Word has length 190 [2022-11-20 12:20:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:08,361 INFO L495 AbstractCegarLoop]: Abstraction has 5802 states and 9394 transitions. [2022-11-20 12:20:08,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 9394 transitions. [2022-11-20 12:20:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 12:20:08,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:08,377 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:08,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:20:08,377 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1110044417, now seen corresponding path program 1 times [2022-11-20 12:20:08,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:08,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644570353] [2022-11-20 12:20:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 12:20:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:20:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 12:20:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 12:20:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-20 12:20:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:20:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:08,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:08,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644570353] [2022-11-20 12:20:08,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644570353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:08,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:08,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:08,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986665096] [2022-11-20 12:20:08,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:08,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:08,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:08,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:08,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:08,535 INFO L87 Difference]: Start difference. First operand 5802 states and 9394 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:11,806 INFO L93 Difference]: Finished difference Result 14119 states and 23253 transitions. [2022-11-20 12:20:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2022-11-20 12:20:11,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:11,843 INFO L225 Difference]: With dead ends: 14119 [2022-11-20 12:20:11,843 INFO L226 Difference]: Without dead ends: 9327 [2022-11-20 12:20:11,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:11,856 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1964 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:11,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 1433 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:20:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9327 states. [2022-11-20 12:20:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9327 to 9177. [2022-11-20 12:20:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9177 states, 7834 states have (on average 1.5564207301506254) internal successors, (12193), 7848 states have internal predecessors, (12193), 1294 states have call successors, (1294), 44 states have call predecessors, (1294), 48 states have return successors, (1411), 1292 states have call predecessors, (1411), 1293 states have call successors, (1411) [2022-11-20 12:20:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9177 states to 9177 states and 14898 transitions. [2022-11-20 12:20:12,865 INFO L78 Accepts]: Start accepts. Automaton has 9177 states and 14898 transitions. Word has length 191 [2022-11-20 12:20:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:12,865 INFO L495 AbstractCegarLoop]: Abstraction has 9177 states and 14898 transitions. [2022-11-20 12:20:12,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 9177 states and 14898 transitions. [2022-11-20 12:20:12,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 12:20:12,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:12,886 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:12,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 12:20:12,886 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:12,887 INFO L85 PathProgramCache]: Analyzing trace with hash -833734908, now seen corresponding path program 1 times [2022-11-20 12:20:12,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:12,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275065102] [2022-11-20 12:20:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:12,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 12:20:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 12:20:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 12:20:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 12:20:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 12:20:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-20 12:20:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:13,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:13,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275065102] [2022-11-20 12:20:13,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275065102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:13,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:13,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152341037] [2022-11-20 12:20:13,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:13,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:13,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:13,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:13,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:13,050 INFO L87 Difference]: Start difference. First operand 9177 states and 14898 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:16,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:16,794 INFO L93 Difference]: Finished difference Result 23072 states and 38129 transitions. [2022-11-20 12:20:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:16,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2022-11-20 12:20:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:16,852 INFO L225 Difference]: With dead ends: 23072 [2022-11-20 12:20:16,852 INFO L226 Difference]: Without dead ends: 15401 [2022-11-20 12:20:16,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:16,873 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1971 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:16,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 1383 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:20:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-11-20 12:20:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15251. [2022-11-20 12:20:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15251 states, 13086 states have (on average 1.5623567171022468) internal successors, (20445), 13100 states have internal predecessors, (20445), 2116 states have call successors, (2116), 44 states have call predecessors, (2116), 48 states have return successors, (2311), 2114 states have call predecessors, (2311), 2115 states have call successors, (2311) [2022-11-20 12:20:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15251 states to 15251 states and 24872 transitions. [2022-11-20 12:20:18,020 INFO L78 Accepts]: Start accepts. Automaton has 15251 states and 24872 transitions. Word has length 192 [2022-11-20 12:20:18,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:18,021 INFO L495 AbstractCegarLoop]: Abstraction has 15251 states and 24872 transitions. [2022-11-20 12:20:18,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15251 states and 24872 transitions. [2022-11-20 12:20:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 12:20:18,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:18,045 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:18,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 12:20:18,045 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:18,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash 5220358, now seen corresponding path program 1 times [2022-11-20 12:20:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:18,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775327046] [2022-11-20 12:20:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:18,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:20:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 12:20:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 12:20:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-20 12:20:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-20 12:20:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-20 12:20:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:18,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775327046] [2022-11-20 12:20:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775327046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:18,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:18,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:18,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170368724] [2022-11-20 12:20:18,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:18,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:18,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:18,205 INFO L87 Difference]: Start difference. First operand 15251 states and 24872 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:22,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:22,717 INFO L93 Difference]: Finished difference Result 36881 states and 60513 transitions. [2022-11-20 12:20:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 193 [2022-11-20 12:20:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:22,806 INFO L225 Difference]: With dead ends: 36881 [2022-11-20 12:20:22,806 INFO L226 Difference]: Without dead ends: 24270 [2022-11-20 12:20:22,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:22,836 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1961 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:22,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 1391 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:20:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24270 states. [2022-11-20 12:20:24,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24270 to 24120. [2022-11-20 12:20:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24120 states, 20752 states have (on average 1.5354182729375483) internal successors, (31863), 20766 states have internal predecessors, (31863), 3319 states have call successors, (3319), 44 states have call predecessors, (3319), 48 states have return successors, (3658), 3317 states have call predecessors, (3658), 3318 states have call successors, (3658) [2022-11-20 12:20:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24120 states to 24120 states and 38840 transitions. [2022-11-20 12:20:24,658 INFO L78 Accepts]: Start accepts. Automaton has 24120 states and 38840 transitions. Word has length 193 [2022-11-20 12:20:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:24,659 INFO L495 AbstractCegarLoop]: Abstraction has 24120 states and 38840 transitions. [2022-11-20 12:20:24,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 24120 states and 38840 transitions. [2022-11-20 12:20:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-20 12:20:24,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:24,685 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:24,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 12:20:24,685 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash 216518572, now seen corresponding path program 1 times [2022-11-20 12:20:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:24,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772921901] [2022-11-20 12:20:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:24,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 12:20:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 12:20:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:20:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-20 12:20:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-20 12:20:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-20 12:20:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:24,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:24,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772921901] [2022-11-20 12:20:24,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772921901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:24,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:24,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:24,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714518597] [2022-11-20 12:20:24,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:24,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:24,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:24,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:24,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:24,839 INFO L87 Difference]: Start difference. First operand 24120 states and 38840 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:30,561 INFO L93 Difference]: Finished difference Result 63734 states and 104201 transitions. [2022-11-20 12:20:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:30,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-11-20 12:20:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:30,750 INFO L225 Difference]: With dead ends: 63734 [2022-11-20 12:20:30,751 INFO L226 Difference]: Without dead ends: 43066 [2022-11-20 12:20:30,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:30,812 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1960 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:30,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 1379 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:20:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43066 states. [2022-11-20 12:20:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43066 to 42916. [2022-11-20 12:20:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42916 states, 37098 states have (on average 1.5354736104372204) internal successors, (56963), 37112 states have internal predecessors, (56963), 5769 states have call successors, (5769), 44 states have call predecessors, (5769), 48 states have return successors, (6382), 5767 states have call predecessors, (6382), 5768 states have call successors, (6382) [2022-11-20 12:20:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42916 states to 42916 states and 69114 transitions. [2022-11-20 12:20:34,667 INFO L78 Accepts]: Start accepts. Automaton has 42916 states and 69114 transitions. Word has length 194 [2022-11-20 12:20:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:34,668 INFO L495 AbstractCegarLoop]: Abstraction has 42916 states and 69114 transitions. [2022-11-20 12:20:34,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 42916 states and 69114 transitions. [2022-11-20 12:20:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:20:34,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:34,702 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:34,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 12:20:34,702 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:34,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:34,703 INFO L85 PathProgramCache]: Analyzing trace with hash -71791303, now seen corresponding path program 1 times [2022-11-20 12:20:34,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:34,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230763930] [2022-11-20 12:20:34,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:20:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 12:20:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:20:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:20:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:20:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:20:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 12:20:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:20:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:20:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:20:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:20:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:20:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:20:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:20:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:20:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:20:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 12:20:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 12:20:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-20 12:20:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-20 12:20:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 12:20:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 12:20:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:34,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230763930] [2022-11-20 12:20:34,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230763930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:34,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:34,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:20:34,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314289085] [2022-11-20 12:20:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:34,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:20:34,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:20:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:20:34,871 INFO L87 Difference]: Start difference. First operand 42916 states and 69114 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:42,880 INFO L93 Difference]: Finished difference Result 116396 states and 190155 transitions. [2022-11-20 12:20:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:20:42,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 195 [2022-11-20 12:20:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:43,211 INFO L225 Difference]: With dead ends: 116396 [2022-11-20 12:20:43,211 INFO L226 Difference]: Without dead ends: 78108 [2022-11-20 12:20:43,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:20:43,307 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1936 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:43,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 1383 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:20:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78108 states. [2022-11-20 12:20:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78108 to 77958. [2022-11-20 12:20:49,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77958 states, 67627 states have (on average 1.5391042039422125) internal successors, (104085), 67641 states have internal predecessors, (104085), 10282 states have call successors, (10282), 44 states have call predecessors, (10282), 48 states have return successors, (11427), 10280 states have call predecessors, (11427), 10281 states have call successors, (11427) [2022-11-20 12:20:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77958 states to 77958 states and 125794 transitions. [2022-11-20 12:20:50,148 INFO L78 Accepts]: Start accepts. Automaton has 77958 states and 125794 transitions. Word has length 195 [2022-11-20 12:20:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:50,148 INFO L495 AbstractCegarLoop]: Abstraction has 77958 states and 125794 transitions. [2022-11-20 12:20:50,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:20:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 77958 states and 125794 transitions.