./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa --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 c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:16:43,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:16:43,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:16:43,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:16:43,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:16:43,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:16:43,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:16:43,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:16:43,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:16:43,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:16:43,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:16:43,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:16:43,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:16:43,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:16:43,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:16:43,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:16:43,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:16:43,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:16:43,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:16:43,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:16:43,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:16:43,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:16:43,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:16:43,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:16:43,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:16:43,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:16:43,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:16:43,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:16:43,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:16:43,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:16:43,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:16:43,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:16:43,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:16:43,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:16:43,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:16:43,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:16:43,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:16:43,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:16:43,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:16:43,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:16:43,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:16:43,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:16:43,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:16:43,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:16:43,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:16:43,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:16:43,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:16:43,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:16:43,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:16:43,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:16:43,846 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:16:43,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:16:43,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:16:43,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:16:43,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:16:43,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:16:43,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:16:43,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:16:43,849 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:16:43,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:16:43,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:16:43,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:16:43,849 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_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 [2021-12-06 18:16:44,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:16:44,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:16:44,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:16:44,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:16:44,046 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:16:44,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2021-12-06 18:16:44,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/data/e08ed53c6/6a9f3909ec154f71b6c8561498dc09c2/FLAG4dd93f56b [2021-12-06 18:16:44,584 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:16:44,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2021-12-06 18:16:44,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/data/e08ed53c6/6a9f3909ec154f71b6c8561498dc09c2/FLAG4dd93f56b [2021-12-06 18:16:45,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/data/e08ed53c6/6a9f3909ec154f71b6c8561498dc09c2 [2021-12-06 18:16:45,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:16:45,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:16:45,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:16:45,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:16:45,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:16:45,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c14b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45, skipping insertion in model container [2021-12-06 18:16:45,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:16:45,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:16:45,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2021-12-06 18:16:45,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:16:45,515 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:16:45,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2021-12-06 18:16:45,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:16:45,624 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:16:45,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45 WrapperNode [2021-12-06 18:16:45,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:16:45,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:16:45,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:16:45,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:16:45,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,715 INFO L137 Inliner]: procedures = 152, calls = 290, calls flagged for inlining = 68, calls inlined = 65, statements flattened = 1339 [2021-12-06 18:16:45,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:16:45,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:16:45,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:16:45,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:16:45,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:16:45,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:16:45,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:16:45,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:16:45,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (1/1) ... [2021-12-06 18:16:45,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:16:45,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:16:45,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:16:45,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:16:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-06 18:16:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-06 18:16:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2021-12-06 18:16:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2021-12-06 18:16:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2021-12-06 18:16:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2021-12-06 18:16:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-06 18:16:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-06 18:16:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-06 18:16:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-06 18:16:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-06 18:16:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-06 18:16:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-06 18:16:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-06 18:16:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2021-12-06 18:16:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2021-12-06 18:16:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-06 18:16:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-06 18:16:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2021-12-06 18:16:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2021-12-06 18:16:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-06 18:16:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-06 18:16:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-06 18:16:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-06 18:16:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-06 18:16:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-06 18:16:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2021-12-06 18:16:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2021-12-06 18:16:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2021-12-06 18:16:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2021-12-06 18:16:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-06 18:16:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-06 18:16:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-06 18:16:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-06 18:16:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-06 18:16:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-06 18:16:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-06 18:16:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2021-12-06 18:16:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2021-12-06 18:16:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-06 18:16:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-06 18:16:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-06 18:16:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-06 18:16:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-06 18:16:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-06 18:16:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2021-12-06 18:16:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2021-12-06 18:16:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:16:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-06 18:16:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-06 18:16:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-06 18:16:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-06 18:16:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2021-12-06 18:16:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2021-12-06 18:16:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2021-12-06 18:16:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2021-12-06 18:16:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2021-12-06 18:16:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2021-12-06 18:16:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-06 18:16:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-06 18:16:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-06 18:16:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-06 18:16:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-06 18:16:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-06 18:16:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-06 18:16:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-06 18:16:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-06 18:16:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-06 18:16:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-06 18:16:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-06 18:16:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-06 18:16:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-06 18:16:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2021-12-06 18:16:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2021-12-06 18:16:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2021-12-06 18:16:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2021-12-06 18:16:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-06 18:16:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-06 18:16:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-06 18:16:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-06 18:16:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:16:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-06 18:16:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-06 18:16:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2021-12-06 18:16:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2021-12-06 18:16:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-12-06 18:16:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-12-06 18:16:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-06 18:16:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-06 18:16:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:16:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:16:46,041 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:16:46,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:16:46,587 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:16:46,597 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:16:46,597 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 18:16:46,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:16:46 BoogieIcfgContainer [2021-12-06 18:16:46,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:16:46,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:16:46,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:16:46,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:16:46,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:16:45" (1/3) ... [2021-12-06 18:16:46,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a818e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:16:46, skipping insertion in model container [2021-12-06 18:16:46,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:45" (2/3) ... [2021-12-06 18:16:46,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a818e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:16:46, skipping insertion in model container [2021-12-06 18:16:46,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:16:46" (3/3) ... [2021-12-06 18:16:46,605 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2021-12-06 18:16:46,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:16:46,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:16:46,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:16:46,652 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:16:46,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:16:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 608 states, 451 states have (on average 1.5121951219512195) internal successors, (682), 471 states have internal predecessors, (682), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-06 18:16:46,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-06 18:16:46,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:46,696 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:46,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash -908368288, now seen corresponding path program 1 times [2021-12-06 18:16:46,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:46,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021270351] [2021-12-06 18:16:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:46,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:16:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 18:16:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:16:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 18:16:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 18:16:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 18:16:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 18:16:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 18:16:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 18:16:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 18:16:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:16:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-06 18:16:47,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:47,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021270351] [2021-12-06 18:16:47,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021270351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:47,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:47,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:16:47,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622985401] [2021-12-06 18:16:47,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:47,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:16:47,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:47,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:16:47,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:16:47,131 INFO L87 Difference]: Start difference. First operand has 608 states, 451 states have (on average 1.5121951219512195) internal successors, (682), 471 states have internal predecessors, (682), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:16:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:48,024 INFO L93 Difference]: Finished difference Result 1093 states and 1648 transitions. [2021-12-06 18:16:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:16:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2021-12-06 18:16:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:48,043 INFO L225 Difference]: With dead ends: 1093 [2021-12-06 18:16:48,043 INFO L226 Difference]: Without dead ends: 747 [2021-12-06 18:16:48,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:16:48,055 INFO L933 BasicCegarLoop]: 935 mSDtfsCounter, 1353 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:48,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 1661 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:16:48,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-12-06 18:16:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 601. [2021-12-06 18:16:48,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 445 states have (on average 1.5078651685393258) internal successors, (671), 464 states have internal predecessors, (671), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2021-12-06 18:16:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 894 transitions. [2021-12-06 18:16:48,151 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 894 transitions. Word has length 152 [2021-12-06 18:16:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:48,152 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 894 transitions. [2021-12-06 18:16:48,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:16:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 894 transitions. [2021-12-06 18:16:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-06 18:16:48,159 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:48,159 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:48,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:16:48,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1403721134, now seen corresponding path program 1 times [2021-12-06 18:16:48,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:48,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828231853] [2021-12-06 18:16:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:48,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:16:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 18:16:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:16:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 18:16:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 18:16:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 18:16:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 18:16:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 18:16:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 18:16:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 18:16:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 18:16:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-06 18:16:48,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:48,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828231853] [2021-12-06 18:16:48,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828231853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:48,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:48,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:16:48,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445232022] [2021-12-06 18:16:48,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:48,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:16:48,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:16:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:16:48,372 INFO L87 Difference]: Start difference. First operand 601 states and 894 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:16:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:49,737 INFO L93 Difference]: Finished difference Result 1312 states and 1978 transitions. [2021-12-06 18:16:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:16:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2021-12-06 18:16:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:49,745 INFO L225 Difference]: With dead ends: 1312 [2021-12-06 18:16:49,745 INFO L226 Difference]: Without dead ends: 747 [2021-12-06 18:16:49,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:16:49,749 INFO L933 BasicCegarLoop]: 916 mSDtfsCounter, 1360 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:49,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 2841 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 18:16:49,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-12-06 18:16:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 601. [2021-12-06 18:16:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 445 states have (on average 1.4921348314606742) internal successors, (664), 464 states have internal predecessors, (664), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2021-12-06 18:16:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 887 transitions. [2021-12-06 18:16:49,796 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 887 transitions. Word has length 153 [2021-12-06 18:16:49,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:49,796 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 887 transitions. [2021-12-06 18:16:49,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:16:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 887 transitions. [2021-12-06 18:16:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-06 18:16:49,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:49,800 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:49,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:16:49,800 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:49,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2044567667, now seen corresponding path program 1 times [2021-12-06 18:16:49,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:49,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821923987] [2021-12-06 18:16:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:49,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 18:16:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 18:16:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 18:16:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 18:16:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 18:16:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 18:16:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 18:16:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 18:16:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 18:16:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 18:16:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 18:16:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 18:16:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 18:16:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:16:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 18:16:49,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:49,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821923987] [2021-12-06 18:16:49,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821923987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:49,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:49,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:16:49,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001088223] [2021-12-06 18:16:49,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:49,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:16:49,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:16:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:16:49,957 INFO L87 Difference]: Start difference. First operand 601 states and 887 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-06 18:16:50,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:50,765 INFO L93 Difference]: Finished difference Result 1322 states and 2010 transitions. [2021-12-06 18:16:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:16:50,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 179 [2021-12-06 18:16:50,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:50,770 INFO L225 Difference]: With dead ends: 1322 [2021-12-06 18:16:50,770 INFO L226 Difference]: Without dead ends: 746 [2021-12-06 18:16:50,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:16:50,774 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 2078 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:50,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2105 Valid, 1558 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [872 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:16:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-12-06 18:16:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 600. [2021-12-06 18:16:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 446 states have (on average 1.4798206278026906) internal successors, (660), 463 states have internal predecessors, (660), 109 states have call successors, (109), 44 states have call predecessors, (109), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2021-12-06 18:16:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 877 transitions. [2021-12-06 18:16:50,815 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 877 transitions. Word has length 179 [2021-12-06 18:16:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:50,816 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 877 transitions. [2021-12-06 18:16:50,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-06 18:16:50,816 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 877 transitions. [2021-12-06 18:16:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 18:16:50,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:50,821 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:50,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:16:50,821 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash -780436113, now seen corresponding path program 1 times [2021-12-06 18:16:50,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:50,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341611843] [2021-12-06 18:16:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:50,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 18:16:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 18:16:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 18:16:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 18:16:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 18:16:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 18:16:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 18:16:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:16:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 18:16:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 18:16:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 18:16:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 18:16:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 18:16:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 18:16:50,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:50,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341611843] [2021-12-06 18:16:50,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341611843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:50,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:50,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:16:50,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745015982] [2021-12-06 18:16:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:50,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:16:50,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:50,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:16:50,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:16:50,952 INFO L87 Difference]: Start difference. First operand 600 states and 877 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-06 18:16:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:51,750 INFO L93 Difference]: Finished difference Result 1314 states and 1970 transitions. [2021-12-06 18:16:51,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:16:51,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 174 [2021-12-06 18:16:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:51,756 INFO L225 Difference]: With dead ends: 1314 [2021-12-06 18:16:51,756 INFO L226 Difference]: Without dead ends: 744 [2021-12-06 18:16:51,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:16:51,760 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 2067 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:51,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2095 Valid, 1578 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:16:51,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-06 18:16:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 599. [2021-12-06 18:16:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 446 states have (on average 1.4753363228699552) internal successors, (658), 462 states have internal predecessors, (658), 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) [2021-12-06 18:16:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 873 transitions. [2021-12-06 18:16:51,804 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 873 transitions. Word has length 174 [2021-12-06 18:16:51,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:51,805 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 873 transitions. [2021-12-06 18:16:51,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-06 18:16:51,805 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 873 transitions. [2021-12-06 18:16:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-06 18:16:51,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:51,809 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:51,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:16:51,809 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:51,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:51,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1151489211, now seen corresponding path program 1 times [2021-12-06 18:16:51,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:51,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579866340] [2021-12-06 18:16:51,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:51,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:16:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:16:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 18:16:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 18:16:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 18:16:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 18:16:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 18:16:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:16:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:16:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 18:16:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:16:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:16:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 18:16:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 18:16:51,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:51,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579866340] [2021-12-06 18:16:51,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579866340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:51,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:51,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:16:51,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616453337] [2021-12-06 18:16:51,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:51,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:16:51,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:16:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:16:51,952 INFO L87 Difference]: Start difference. First operand 599 states and 873 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 18:16:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:52,679 INFO L93 Difference]: Finished difference Result 1294 states and 1917 transitions. [2021-12-06 18:16:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:16:52,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2021-12-06 18:16:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:52,684 INFO L225 Difference]: With dead ends: 1294 [2021-12-06 18:16:52,684 INFO L226 Difference]: Without dead ends: 741 [2021-12-06 18:16:52,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:16:52,686 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 2009 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:52,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2033 Valid, 1504 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:16:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-12-06 18:16:52,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 596. [2021-12-06 18:16:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 446 states have (on average 1.4506726457399104) internal successors, (647), 457 states have internal predecessors, (647), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-12-06 18:16:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 856 transitions. [2021-12-06 18:16:52,713 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 856 transitions. Word has length 182 [2021-12-06 18:16:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:52,714 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 856 transitions. [2021-12-06 18:16:52,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 18:16:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 856 transitions. [2021-12-06 18:16:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-06 18:16:52,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:52,717 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:52,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:16:52,717 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:52,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1278503715, now seen corresponding path program 1 times [2021-12-06 18:16:52,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:52,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079815955] [2021-12-06 18:16:52,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:52,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 18:16:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 18:16:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 18:16:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 18:16:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 18:16:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 18:16:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:16:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:16:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 18:16:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 18:16:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 18:16:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 18:16:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:16:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 18:16:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-06 18:16:52,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:52,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079815955] [2021-12-06 18:16:52,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079815955] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:16:52,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901148716] [2021-12-06 18:16:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:52,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:52,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:16:52,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:16:52,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:16:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:16:53,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:16:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-06 18:16:53,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:16:53,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901148716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:53,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:16:53,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-06 18:16:53,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908401623] [2021-12-06 18:16:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:53,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:16:53,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:16:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:16:53,242 INFO L87 Difference]: Start difference. First operand 596 states and 856 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:16:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:53,265 INFO L93 Difference]: Finished difference Result 927 states and 1313 transitions. [2021-12-06 18:16:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:16:53,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 200 [2021-12-06 18:16:53,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:53,268 INFO L225 Difference]: With dead ends: 927 [2021-12-06 18:16:53,268 INFO L226 Difference]: Without dead ends: 599 [2021-12-06 18:16:53,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:16:53,270 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 1 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1702 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 [2021-12-06 18:16:53,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1702 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:16:53,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-06 18:16:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 598. [2021-12-06 18:16:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 448 states have (on average 1.4486607142857142) internal successors, (649), 459 states have internal predecessors, (649), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2021-12-06 18:16:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 858 transitions. [2021-12-06 18:16:53,300 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 858 transitions. Word has length 200 [2021-12-06 18:16:53,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:53,301 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 858 transitions. [2021-12-06 18:16:53,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:16:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 858 transitions. [2021-12-06 18:16:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 18:16:53,303 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:53,304 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:53,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:16:53,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:53,506 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:53,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2056474531, now seen corresponding path program 1 times [2021-12-06 18:16:53,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:53,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21008545] [2021-12-06 18:16:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:53,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 18:16:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 18:16:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 18:16:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 18:16:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 18:16:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 18:16:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 18:16:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:16:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:16:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 18:16:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 18:16:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 18:16:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:16:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 18:16:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 18:16:53,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:53,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21008545] [2021-12-06 18:16:53,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21008545] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:16:53,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582112568] [2021-12-06 18:16:53,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:53,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:53,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:16:53,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:16:53,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:16:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:53,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:16:53,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:16:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-06 18:16:54,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:16:54,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582112568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:54,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:16:54,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-06 18:16:54,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352083417] [2021-12-06 18:16:54,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:54,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:16:54,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:16:54,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:16:54,104 INFO L87 Difference]: Start difference. First operand 598 states and 858 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:16:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:54,130 INFO L93 Difference]: Finished difference Result 1216 states and 1777 transitions. [2021-12-06 18:16:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:16:54,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2021-12-06 18:16:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:54,134 INFO L225 Difference]: With dead ends: 1216 [2021-12-06 18:16:54,134 INFO L226 Difference]: Without dead ends: 696 [2021-12-06 18:16:54,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:16:54,136 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 165 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1692 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 [2021-12-06 18:16:54,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1692 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:16:54,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-12-06 18:16:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 688. [2021-12-06 18:16:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 524 states have (on average 1.463740458015267) internal successors, (767), 535 states have internal predecessors, (767), 119 states have call successors, (119), 44 states have call predecessors, (119), 44 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2021-12-06 18:16:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1004 transitions. [2021-12-06 18:16:54,164 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1004 transitions. Word has length 208 [2021-12-06 18:16:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:54,164 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 1004 transitions. [2021-12-06 18:16:54,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:16:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1004 transitions. [2021-12-06 18:16:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-06 18:16:54,166 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:54,166 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:54,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:16:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 18:16:54,367 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 559214179, now seen corresponding path program 1 times [2021-12-06 18:16:54,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419350885] [2021-12-06 18:16:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:54,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 18:16:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 18:16:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 18:16:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 18:16:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:16:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:16:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 18:16:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:16:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:16:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-06 18:16:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 18:16:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 18:16:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:16:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 18:16:54,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419350885] [2021-12-06 18:16:54,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419350885] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:16:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935735355] [2021-12-06 18:16:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:54,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:54,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:16:54,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:16:54,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 18:16:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:54,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:16:54,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:16:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 18:16:54,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:16:54,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935735355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:54,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:16:54,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2021-12-06 18:16:54,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255173758] [2021-12-06 18:16:54,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:54,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:16:54,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:54,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:16:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-06 18:16:54,951 INFO L87 Difference]: Start difference. First operand 688 states and 1004 transitions. Second operand has 8 states, 6 states have (on average 19.833333333333332) internal successors, (119), 8 states have internal predecessors, (119), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:16:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:55,077 INFO L93 Difference]: Finished difference Result 1323 states and 1945 transitions. [2021-12-06 18:16:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:16:55,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.833333333333332) internal successors, (119), 8 states have internal predecessors, (119), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 202 [2021-12-06 18:16:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:55,081 INFO L225 Difference]: With dead ends: 1323 [2021-12-06 18:16:55,081 INFO L226 Difference]: Without dead ends: 690 [2021-12-06 18:16:55,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:16:55,083 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 363 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:55,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 5492 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:16:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-12-06 18:16:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2021-12-06 18:16:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 537 states have internal predecessors, (768), 119 states have call successors, (119), 44 states have call predecessors, (119), 45 states have return successors, (120), 117 states have call predecessors, (120), 118 states have call successors, (120) [2021-12-06 18:16:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1007 transitions. [2021-12-06 18:16:55,134 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1007 transitions. Word has length 202 [2021-12-06 18:16:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:55,134 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1007 transitions. [2021-12-06 18:16:55,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.833333333333332) internal successors, (119), 8 states have internal predecessors, (119), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:16:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1007 transitions. [2021-12-06 18:16:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-06 18:16:55,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:55,138 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:55,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 18:16:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-06 18:16:55,339 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:55,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:55,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1597410583, now seen corresponding path program 1 times [2021-12-06 18:16:55,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:55,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85955108] [2021-12-06 18:16:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:55,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:16:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 18:16:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 18:16:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 18:16:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 18:16:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:16:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 18:16:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 18:16:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 18:16:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 18:16:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 18:16:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:16:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:16:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-06 18:16:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 18:16:55,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:55,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85955108] [2021-12-06 18:16:55,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85955108] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:16:55,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777461051] [2021-12-06 18:16:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:55,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:55,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:16:55,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:16:55,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 18:16:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:55,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 18:16:55,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:16:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 18:16:55,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:16:55,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777461051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:55,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:16:55,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-12-06 18:16:55,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399954099] [2021-12-06 18:16:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:55,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:16:55,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:16:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-12-06 18:16:55,963 INFO L87 Difference]: Start difference. First operand 690 states and 1007 transitions. Second operand has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-06 18:16:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:56,051 INFO L93 Difference]: Finished difference Result 1324 states and 1949 transitions. [2021-12-06 18:16:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:16:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 210 [2021-12-06 18:16:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:56,056 INFO L225 Difference]: With dead ends: 1324 [2021-12-06 18:16:56,056 INFO L226 Difference]: Without dead ends: 692 [2021-12-06 18:16:56,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:16:56,059 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 361 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:56,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3806 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:16:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2021-12-06 18:16:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2021-12-06 18:16:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.461977186311787) internal successors, (769), 539 states have internal predecessors, (769), 119 states have call successors, (119), 44 states have call predecessors, (119), 46 states have return successors, (125), 117 states have call predecessors, (125), 118 states have call successors, (125) [2021-12-06 18:16:56,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1013 transitions. [2021-12-06 18:16:56,104 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1013 transitions. Word has length 210 [2021-12-06 18:16:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:56,104 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 1013 transitions. [2021-12-06 18:16:56,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-06 18:16:56,105 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1013 transitions. [2021-12-06 18:16:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-06 18:16:56,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:56,107 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:56,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-06 18:16:56,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:16:56,309 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1181240852, now seen corresponding path program 1 times [2021-12-06 18:16:56,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:56,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961640876] [2021-12-06 18:16:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:56,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:16:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:16:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 18:16:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 18:16:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 18:16:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:16:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 18:16:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 18:16:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:16:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:16:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:16:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 18:16:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 18:16:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:16:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 18:16:56,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:56,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961640876] [2021-12-06 18:16:56,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961640876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:56,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:56,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:16:56,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792220819] [2021-12-06 18:16:56,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:56,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:16:56,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:16:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:16:56,494 INFO L87 Difference]: Start difference. First operand 692 states and 1013 transitions. Second operand has 12 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:16:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:16:58,305 INFO L93 Difference]: Finished difference Result 1461 states and 2183 transitions. [2021-12-06 18:16:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 18:16:58,305 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 211 [2021-12-06 18:16:58,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:16:58,309 INFO L225 Difference]: With dead ends: 1461 [2021-12-06 18:16:58,309 INFO L226 Difference]: Without dead ends: 841 [2021-12-06 18:16:58,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-06 18:16:58,311 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 2155 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 5295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:16:58,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 3628 Invalid, 5295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-06 18:16:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2021-12-06 18:16:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 692. [2021-12-06 18:16:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.461977186311787) internal successors, (769), 539 states have internal predecessors, (769), 119 states have call successors, (119), 44 states have call predecessors, (119), 46 states have return successors, (124), 117 states have call predecessors, (124), 118 states have call successors, (124) [2021-12-06 18:16:58,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1012 transitions. [2021-12-06 18:16:58,345 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1012 transitions. Word has length 211 [2021-12-06 18:16:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:16:58,345 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 1012 transitions. [2021-12-06 18:16:58,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:16:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1012 transitions. [2021-12-06 18:16:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-06 18:16:58,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:16:58,348 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:16:58,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:16:58,348 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:16:58,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:16:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1817892060, now seen corresponding path program 1 times [2021-12-06 18:16:58,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:16:58,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393684618] [2021-12-06 18:16:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:16:58,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:16:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:16:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:16:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:16:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:16:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:16:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:16:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:16:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:16:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:16:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:16:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:16:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:16:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:16:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:16:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:16:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 18:16:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 18:16:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 18:16:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 18:16:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 18:16:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:16:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:16:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 18:16:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 18:16:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 18:16:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:16:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 18:16:58,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:16:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393684618] [2021-12-06 18:16:58,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393684618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:16:58,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:16:58,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:16:58,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382399624] [2021-12-06 18:16:58,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:16:58,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:16:58,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:16:58,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:16:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:16:58,481 INFO L87 Difference]: Start difference. First operand 692 states and 1012 transitions. Second operand has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:17:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:00,182 INFO L93 Difference]: Finished difference Result 1463 states and 2186 transitions. [2021-12-06 18:17:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 18:17:00,182 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 205 [2021-12-06 18:17:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:00,186 INFO L225 Difference]: With dead ends: 1463 [2021-12-06 18:17:00,186 INFO L226 Difference]: Without dead ends: 843 [2021-12-06 18:17:00,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-06 18:17:00,188 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 2175 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 4328 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:00,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 3599 Invalid, 5238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 18:17:00,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-12-06 18:17:00,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 694. [2021-12-06 18:17:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.4611005692599621) internal successors, (770), 541 states have internal predecessors, (770), 119 states have call successors, (119), 44 states have call predecessors, (119), 47 states have return successors, (126), 117 states have call predecessors, (126), 118 states have call successors, (126) [2021-12-06 18:17:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1015 transitions. [2021-12-06 18:17:00,227 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1015 transitions. Word has length 205 [2021-12-06 18:17:00,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:00,228 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1015 transitions. [2021-12-06 18:17:00,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:17:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1015 transitions. [2021-12-06 18:17:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-06 18:17:00,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:00,230 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:00,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:17:00,230 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:00,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash -859538639, now seen corresponding path program 1 times [2021-12-06 18:17:00,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:00,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019308645] [2021-12-06 18:17:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:00,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 18:17:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 18:17:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 18:17:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 18:17:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:17:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 18:17:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 18:17:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:17:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 18:17:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:17:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-06 18:17:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 18:17:00,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:00,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019308645] [2021-12-06 18:17:00,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019308645] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:00,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:00,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:17:00,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318437523] [2021-12-06 18:17:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:00,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:17:00,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:17:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:00,359 INFO L87 Difference]: Start difference. First operand 694 states and 1015 transitions. Second operand has 13 states, 11 states have (on average 11.545454545454545) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:02,341 INFO L93 Difference]: Finished difference Result 1683 states and 2553 transitions. [2021-12-06 18:17:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:17:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.545454545454545) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 213 [2021-12-06 18:17:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:02,346 INFO L225 Difference]: With dead ends: 1683 [2021-12-06 18:17:02,346 INFO L226 Difference]: Without dead ends: 1066 [2021-12-06 18:17:02,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:17:02,348 INFO L933 BasicCegarLoop]: 1064 mSDtfsCounter, 1976 mSDsluCounter, 5373 mSDsCounter, 0 mSdLazyCounter, 5344 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 6437 SdHoareTripleChecker+Invalid, 6229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 5344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:02,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1997 Valid, 6437 Invalid, 6229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 5344 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-06 18:17:02,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-12-06 18:17:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 699. [2021-12-06 18:17:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 529 states have (on average 1.4593572778827977) internal successors, (772), 544 states have internal predecessors, (772), 120 states have call successors, (120), 44 states have call predecessors, (120), 49 states have return successors, (131), 119 states have call predecessors, (131), 119 states have call successors, (131) [2021-12-06 18:17:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1023 transitions. [2021-12-06 18:17:02,384 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1023 transitions. Word has length 213 [2021-12-06 18:17:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:02,385 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 1023 transitions. [2021-12-06 18:17:02,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.545454545454545) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1023 transitions. [2021-12-06 18:17:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-06 18:17:02,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:02,387 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:02,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:17:02,387 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash 867606323, now seen corresponding path program 1 times [2021-12-06 18:17:02,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:02,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720915758] [2021-12-06 18:17:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:02,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 18:17:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 18:17:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 18:17:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 18:17:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:17:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 18:17:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 18:17:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:17:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 18:17:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:17:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-06 18:17:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 18:17:02,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:02,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720915758] [2021-12-06 18:17:02,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720915758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:02,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:02,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:17:02,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193463167] [2021-12-06 18:17:02,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:02,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:17:02,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:02,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:17:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:17:02,526 INFO L87 Difference]: Start difference. First operand 699 states and 1023 transitions. Second operand has 12 states, 10 states have (on average 12.4) internal successors, (124), 8 states have internal predecessors, (124), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:04,297 INFO L93 Difference]: Finished difference Result 1461 states and 2182 transitions. [2021-12-06 18:17:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:17:04,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 12.4) internal successors, (124), 8 states have internal predecessors, (124), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 213 [2021-12-06 18:17:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:04,302 INFO L225 Difference]: With dead ends: 1461 [2021-12-06 18:17:04,302 INFO L226 Difference]: Without dead ends: 841 [2021-12-06 18:17:04,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-12-06 18:17:04,304 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 2161 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 4328 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 4328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:04,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2161 Valid, 3586 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 4328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 18:17:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2021-12-06 18:17:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 694. [2021-12-06 18:17:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.4611005692599621) internal successors, (770), 541 states have internal predecessors, (770), 119 states have call successors, (119), 44 states have call predecessors, (119), 47 states have return successors, (125), 117 states have call predecessors, (125), 118 states have call successors, (125) [2021-12-06 18:17:04,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1014 transitions. [2021-12-06 18:17:04,336 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1014 transitions. Word has length 213 [2021-12-06 18:17:04,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:04,337 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1014 transitions. [2021-12-06 18:17:04,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 12.4) internal successors, (124), 8 states have internal predecessors, (124), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1014 transitions. [2021-12-06 18:17:04,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-06 18:17:04,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:04,339 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:04,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:17:04,339 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2062587758, now seen corresponding path program 2 times [2021-12-06 18:17:04,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:04,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586461097] [2021-12-06 18:17:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:04,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:17:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 18:17:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 18:17:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:17:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:17:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 18:17:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 18:17:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 18:17:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:17:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 18:17:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 18:17:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 18:17:04,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:04,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586461097] [2021-12-06 18:17:04,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586461097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:04,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:04,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:17:04,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499163331] [2021-12-06 18:17:04,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:04,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:17:04,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:04,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:17:04,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:04,492 INFO L87 Difference]: Start difference. First operand 694 states and 1014 transitions. Second operand has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:06,316 INFO L93 Difference]: Finished difference Result 1460 states and 2183 transitions. [2021-12-06 18:17:06,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:17:06,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 214 [2021-12-06 18:17:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:06,320 INFO L225 Difference]: With dead ends: 1460 [2021-12-06 18:17:06,321 INFO L226 Difference]: Without dead ends: 843 [2021-12-06 18:17:06,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:17:06,322 INFO L933 BasicCegarLoop]: 855 mSDtfsCounter, 1965 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 5108 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 5108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:06,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1985 Valid, 4127 Invalid, 5978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [870 Valid, 5108 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-06 18:17:06,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-12-06 18:17:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 696. [2021-12-06 18:17:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 528 states have (on average 1.4602272727272727) internal successors, (771), 543 states have internal predecessors, (771), 119 states have call successors, (119), 44 states have call predecessors, (119), 48 states have return successors, (130), 117 states have call predecessors, (130), 118 states have call successors, (130) [2021-12-06 18:17:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1020 transitions. [2021-12-06 18:17:06,355 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1020 transitions. Word has length 214 [2021-12-06 18:17:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:06,355 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 1020 transitions. [2021-12-06 18:17:06,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.636363636363637) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (33), 6 states have call predecessors, (33), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-06 18:17:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1020 transitions. [2021-12-06 18:17:06,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-06 18:17:06,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:06,357 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:06,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:17:06,357 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:06,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:06,358 INFO L85 PathProgramCache]: Analyzing trace with hash -113125140, now seen corresponding path program 1 times [2021-12-06 18:17:06,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:06,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900244956] [2021-12-06 18:17:06,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:06,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 18:17:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:17:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 18:17:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 18:17:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:17:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-06 18:17:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 18:17:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 18:17:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-06 18:17:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-06 18:17:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-06 18:17:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:06,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:06,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900244956] [2021-12-06 18:17:06,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900244956] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:17:06,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581774475] [2021-12-06 18:17:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:06,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:17:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:17:06,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:17:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 18:17:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:06,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:17:06,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:17:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:06,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:17:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:06,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581774475] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:17:06,991 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:17:06,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-06 18:17:06,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649445249] [2021-12-06 18:17:06,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:17:06,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 18:17:06,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 18:17:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:17:06,993 INFO L87 Difference]: Start difference. First operand 696 states and 1020 transitions. Second operand has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 18:17:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:08,435 INFO L93 Difference]: Finished difference Result 1734 states and 2666 transitions. [2021-12-06 18:17:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:17:08,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 215 [2021-12-06 18:17:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:08,442 INFO L225 Difference]: With dead ends: 1734 [2021-12-06 18:17:08,442 INFO L226 Difference]: Without dead ends: 1406 [2021-12-06 18:17:08,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-06 18:17:08,444 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 2471 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 1033 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:08,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2528 Valid, 3238 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1033 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:17:08,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2021-12-06 18:17:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1235. [2021-12-06 18:17:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 988 states have (on average 1.513157894736842) internal successors, (1495), 1003 states have internal predecessors, (1495), 198 states have call successors, (198), 44 states have call predecessors, (198), 48 states have return successors, (219), 196 states have call predecessors, (219), 197 states have call successors, (219) [2021-12-06 18:17:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1912 transitions. [2021-12-06 18:17:08,508 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1912 transitions. Word has length 215 [2021-12-06 18:17:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:08,509 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1912 transitions. [2021-12-06 18:17:08,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 18:17:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1912 transitions. [2021-12-06 18:17:08,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-06 18:17:08,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:08,513 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:08,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 18:17:08,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:17:08,713 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:08,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1486701752, now seen corresponding path program 1 times [2021-12-06 18:17:08,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:08,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870655628] [2021-12-06 18:17:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:08,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 18:17:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 18:17:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 18:17:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 18:17:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 18:17:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:17:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 18:17:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 18:17:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 18:17:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:17:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:08,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:08,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870655628] [2021-12-06 18:17:08,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870655628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:08,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:08,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:08,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387512560] [2021-12-06 18:17:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:08,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:08,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:08,830 INFO L87 Difference]: Start difference. First operand 1235 states and 1912 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:09,989 INFO L93 Difference]: Finished difference Result 2991 states and 4750 transitions. [2021-12-06 18:17:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 212 [2021-12-06 18:17:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:09,998 INFO L225 Difference]: With dead ends: 2991 [2021-12-06 18:17:09,998 INFO L226 Difference]: Without dead ends: 1891 [2021-12-06 18:17:10,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:10,001 INFO L933 BasicCegarLoop]: 921 mSDtfsCounter, 1956 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 901 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:10,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1974 Valid, 2183 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [901 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:17:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-12-06 18:17:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1736. [2021-12-06 18:17:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1410 states have (on average 1.525531914893617) internal successors, (2151), 1425 states have internal predecessors, (2151), 277 states have call successors, (277), 44 states have call predecessors, (277), 48 states have return successors, (308), 275 states have call predecessors, (308), 276 states have call successors, (308) [2021-12-06 18:17:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2736 transitions. [2021-12-06 18:17:10,079 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2736 transitions. Word has length 212 [2021-12-06 18:17:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:10,080 INFO L470 AbstractCegarLoop]: Abstraction has 1736 states and 2736 transitions. [2021-12-06 18:17:10,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2736 transitions. [2021-12-06 18:17:10,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-06 18:17:10,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:10,085 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:10,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 18:17:10,085 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1601772600, now seen corresponding path program 1 times [2021-12-06 18:17:10,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:10,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377000973] [2021-12-06 18:17:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:10,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:17:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 18:17:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 18:17:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:17:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:17:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 18:17:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:17:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 18:17:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 18:17:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 18:17:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 18:17:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:10,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:10,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377000973] [2021-12-06 18:17:10,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377000973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:10,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:10,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:10,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640168365] [2021-12-06 18:17:10,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:10,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:10,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:10,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:10,185 INFO L87 Difference]: Start difference. First operand 1736 states and 2736 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:11,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:11,310 INFO L93 Difference]: Finished difference Result 4238 states and 6807 transitions. [2021-12-06 18:17:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:11,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 220 [2021-12-06 18:17:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:11,323 INFO L225 Difference]: With dead ends: 4238 [2021-12-06 18:17:11,323 INFO L226 Difference]: Without dead ends: 2700 [2021-12-06 18:17:11,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:11,326 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 1976 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:11,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 2133 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:17:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2021-12-06 18:17:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2545. [2021-12-06 18:17:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2100 states have (on average 1.5385714285714285) internal successors, (3231), 2115 states have internal predecessors, (3231), 396 states have call successors, (396), 44 states have call predecessors, (396), 48 states have return successors, (427), 394 states have call predecessors, (427), 395 states have call successors, (427) [2021-12-06 18:17:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4054 transitions. [2021-12-06 18:17:11,434 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4054 transitions. Word has length 220 [2021-12-06 18:17:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:11,435 INFO L470 AbstractCegarLoop]: Abstraction has 2545 states and 4054 transitions. [2021-12-06 18:17:11,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4054 transitions. [2021-12-06 18:17:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-06 18:17:11,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:11,443 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:11,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 18:17:11,443 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:11,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1410933425, now seen corresponding path program 1 times [2021-12-06 18:17:11,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:11,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879275293] [2021-12-06 18:17:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:11,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 18:17:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 18:17:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 18:17:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:17:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 18:17:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 18:17:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 18:17:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:17:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-06 18:17:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-06 18:17:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-06 18:17:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:11,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:11,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879275293] [2021-12-06 18:17:11,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879275293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:11,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:11,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:11,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485431872] [2021-12-06 18:17:11,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:11,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:11,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:11,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:11,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:11,541 INFO L87 Difference]: Start difference. First operand 2545 states and 4054 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:12,756 INFO L93 Difference]: Finished difference Result 6137 states and 9964 transitions. [2021-12-06 18:17:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:12,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2021-12-06 18:17:12,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:12,775 INFO L225 Difference]: With dead ends: 6137 [2021-12-06 18:17:12,775 INFO L226 Difference]: Without dead ends: 3947 [2021-12-06 18:17:12,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:12,780 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 1964 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:12,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1983 Valid, 2117 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [907 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:17:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2021-12-06 18:17:12,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3792. [2021-12-06 18:17:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3185 states have (on average 1.5494505494505495) internal successors, (4935), 3200 states have internal predecessors, (4935), 558 states have call successors, (558), 44 states have call predecessors, (558), 48 states have return successors, (605), 556 states have call predecessors, (605), 557 states have call successors, (605) [2021-12-06 18:17:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 6098 transitions. [2021-12-06 18:17:12,937 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 6098 transitions. Word has length 221 [2021-12-06 18:17:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:12,937 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 6098 transitions. [2021-12-06 18:17:12,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 6098 transitions. [2021-12-06 18:17:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-06 18:17:12,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:12,949 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:12,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 18:17:12,949 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1153450946, now seen corresponding path program 1 times [2021-12-06 18:17:12,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:12,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469925041] [2021-12-06 18:17:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:12,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 18:17:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 18:17:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 18:17:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:17:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-06 18:17:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 18:17:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 18:17:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-06 18:17:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-06 18:17:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-06 18:17:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:13,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469925041] [2021-12-06 18:17:13,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469925041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:13,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:13,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:13,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498984421] [2021-12-06 18:17:13,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:13,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:13,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:13,058 INFO L87 Difference]: Start difference. First operand 3792 states and 6098 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:14,381 INFO L93 Difference]: Finished difference Result 9139 states and 14973 transitions. [2021-12-06 18:17:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:14,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 215 [2021-12-06 18:17:14,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:14,412 INFO L225 Difference]: With dead ends: 9139 [2021-12-06 18:17:14,412 INFO L226 Difference]: Without dead ends: 5961 [2021-12-06 18:17:14,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:14,420 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 1950 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:14,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1968 Valid, 2129 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2021-12-06 18:17:14,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5806. [2021-12-06 18:17:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 4954 states have (on average 1.5585385547032702) internal successors, (7721), 4969 states have internal predecessors, (7721), 803 states have call successors, (803), 44 states have call predecessors, (803), 48 states have return successors, (876), 801 states have call predecessors, (876), 802 states have call successors, (876) [2021-12-06 18:17:14,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 9400 transitions. [2021-12-06 18:17:14,661 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 9400 transitions. Word has length 215 [2021-12-06 18:17:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:14,661 INFO L470 AbstractCegarLoop]: Abstraction has 5806 states and 9400 transitions. [2021-12-06 18:17:14,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 9400 transitions. [2021-12-06 18:17:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-06 18:17:14,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:14,675 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:14,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 18:17:14,676 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash -885188730, now seen corresponding path program 1 times [2021-12-06 18:17:14,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:14,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248277126] [2021-12-06 18:17:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:14,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 18:17:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:17:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 18:17:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 18:17:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:17:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 18:17:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:17:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:17:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:17:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 18:17:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-06 18:17:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:14,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:14,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248277126] [2021-12-06 18:17:14,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248277126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:14,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:14,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:14,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68363461] [2021-12-06 18:17:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:14,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:14,774 INFO L87 Difference]: Start difference. First operand 5806 states and 9400 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:16,171 INFO L93 Difference]: Finished difference Result 14132 states and 23271 transitions. [2021-12-06 18:17:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 223 [2021-12-06 18:17:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:16,198 INFO L225 Difference]: With dead ends: 14132 [2021-12-06 18:17:16,199 INFO L226 Difference]: Without dead ends: 9336 [2021-12-06 18:17:16,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:16,208 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 1966 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:16,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1985 Valid, 2183 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:17:16,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2021-12-06 18:17:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 9181. [2021-12-06 18:17:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 7836 states have (on average 1.5562787136294027) internal successors, (12195), 7851 states have internal predecessors, (12195), 1296 states have call successors, (1296), 44 states have call predecessors, (1296), 48 states have return successors, (1413), 1294 states have call predecessors, (1413), 1295 states have call successors, (1413) [2021-12-06 18:17:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 14904 transitions. [2021-12-06 18:17:16,583 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 14904 transitions. Word has length 223 [2021-12-06 18:17:16,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:16,583 INFO L470 AbstractCegarLoop]: Abstraction has 9181 states and 14904 transitions. [2021-12-06 18:17:16,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 14904 transitions. [2021-12-06 18:17:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-06 18:17:16,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:16,605 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:16,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:17:16,605 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:16,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:16,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1824570103, now seen corresponding path program 1 times [2021-12-06 18:17:16,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:16,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274752220] [2021-12-06 18:17:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:16,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 18:17:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:17:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 18:17:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 18:17:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:17:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 18:17:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:17:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 18:17:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:17:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 18:17:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:16,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:16,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274752220] [2021-12-06 18:17:16,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274752220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:16,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:16,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:16,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096052777] [2021-12-06 18:17:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:16,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:16,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:16,702 INFO L87 Difference]: Start difference. First operand 9181 states and 14904 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:18,323 INFO L93 Difference]: Finished difference Result 23085 states and 38147 transitions. [2021-12-06 18:17:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 217 [2021-12-06 18:17:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:18,371 INFO L225 Difference]: With dead ends: 23085 [2021-12-06 18:17:18,371 INFO L226 Difference]: Without dead ends: 15410 [2021-12-06 18:17:18,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:18,386 INFO L933 BasicCegarLoop]: 888 mSDtfsCounter, 1980 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:18,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1999 Valid, 2120 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15410 states. [2021-12-06 18:17:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15410 to 15255. [2021-12-06 18:17:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15255 states, 13088 states have (on average 1.562270782396088) internal successors, (20447), 13103 states have internal predecessors, (20447), 2118 states have call successors, (2118), 44 states have call predecessors, (2118), 48 states have return successors, (2313), 2116 states have call predecessors, (2313), 2117 states have call successors, (2313) [2021-12-06 18:17:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15255 states to 15255 states and 24878 transitions. [2021-12-06 18:17:19,035 INFO L78 Accepts]: Start accepts. Automaton has 15255 states and 24878 transitions. Word has length 217 [2021-12-06 18:17:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:19,036 INFO L470 AbstractCegarLoop]: Abstraction has 15255 states and 24878 transitions. [2021-12-06 18:17:19,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 15255 states and 24878 transitions. [2021-12-06 18:17:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-06 18:17:19,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:19,058 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:19,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 18:17:19,058 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:19,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1333195157, now seen corresponding path program 1 times [2021-12-06 18:17:19,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:19,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544009419] [2021-12-06 18:17:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:19,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 18:17:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:17:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 18:17:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 18:17:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:17:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:17:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 18:17:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 18:17:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:17:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 18:17:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:19,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:19,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544009419] [2021-12-06 18:17:19,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544009419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:19,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:19,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:19,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864388074] [2021-12-06 18:17:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:19,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:19,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:19,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:19,149 INFO L87 Difference]: Start difference. First operand 15255 states and 24878 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:21,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:21,213 INFO L93 Difference]: Finished difference Result 36894 states and 60531 transitions. [2021-12-06 18:17:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:21,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2021-12-06 18:17:21,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:21,263 INFO L225 Difference]: With dead ends: 36894 [2021-12-06 18:17:21,263 INFO L226 Difference]: Without dead ends: 24279 [2021-12-06 18:17:21,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:21,280 INFO L933 BasicCegarLoop]: 900 mSDtfsCounter, 1961 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:21,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 2137 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [907 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24279 states. [2021-12-06 18:17:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24279 to 24124. [2021-12-06 18:17:22,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 20754 states have (on average 1.535366676303363) internal successors, (31865), 20769 states have internal predecessors, (31865), 3321 states have call successors, (3321), 44 states have call predecessors, (3321), 48 states have return successors, (3660), 3319 states have call predecessors, (3660), 3320 states have call successors, (3660) [2021-12-06 18:17:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 38846 transitions. [2021-12-06 18:17:22,245 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 38846 transitions. Word has length 218 [2021-12-06 18:17:22,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:22,245 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 38846 transitions. [2021-12-06 18:17:22,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 38846 transitions. [2021-12-06 18:17:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-06 18:17:22,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:22,273 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:22,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 18:17:22,273 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash -155676781, now seen corresponding path program 1 times [2021-12-06 18:17:22,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:22,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710039345] [2021-12-06 18:17:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:22,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 18:17:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 18:17:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 18:17:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:17:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 18:17:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:17:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 18:17:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:17:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 18:17:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 18:17:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-06 18:17:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:22,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:22,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710039345] [2021-12-06 18:17:22,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710039345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:22,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:22,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:22,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946841945] [2021-12-06 18:17:22,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:22,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:22,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:22,371 INFO L87 Difference]: Start difference. First operand 24124 states and 38846 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:24,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:24,988 INFO L93 Difference]: Finished difference Result 63747 states and 104219 transitions. [2021-12-06 18:17:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:24,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 226 [2021-12-06 18:17:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:25,080 INFO L225 Difference]: With dead ends: 63747 [2021-12-06 18:17:25,080 INFO L226 Difference]: Without dead ends: 43075 [2021-12-06 18:17:25,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:25,114 INFO L933 BasicCegarLoop]: 900 mSDtfsCounter, 1963 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:25,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1981 Valid, 2128 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43075 states. [2021-12-06 18:17:27,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43075 to 42920. [2021-12-06 18:17:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42920 states, 37100 states have (on average 1.53544474393531) internal successors, (56965), 37115 states have internal predecessors, (56965), 5771 states have call successors, (5771), 44 states have call predecessors, (5771), 48 states have return successors, (6384), 5769 states have call predecessors, (6384), 5770 states have call successors, (6384) [2021-12-06 18:17:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42920 states to 42920 states and 69120 transitions. [2021-12-06 18:17:27,116 INFO L78 Accepts]: Start accepts. Automaton has 42920 states and 69120 transitions. Word has length 226 [2021-12-06 18:17:27,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:27,117 INFO L470 AbstractCegarLoop]: Abstraction has 42920 states and 69120 transitions. [2021-12-06 18:17:27,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 18:17:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 42920 states and 69120 transitions. [2021-12-06 18:17:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-06 18:17:27,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:27,156 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:27,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 18:17:27,156 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 129929154, now seen corresponding path program 1 times [2021-12-06 18:17:27,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:27,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134119699] [2021-12-06 18:17:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:27,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 18:17:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 18:17:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:17:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-06 18:17:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 18:17:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:17:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 18:17:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 18:17:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 18:17:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 18:17:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:27,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:27,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134119699] [2021-12-06 18:17:27,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134119699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:27,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:27,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:27,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101386746] [2021-12-06 18:17:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:27,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:27,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:27,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:27,251 INFO L87 Difference]: Start difference. First operand 42920 states and 69120 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:30,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:30,980 INFO L93 Difference]: Finished difference Result 116409 states and 190173 transitions. [2021-12-06 18:17:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:30,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2021-12-06 18:17:30,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:31,189 INFO L225 Difference]: With dead ends: 116409 [2021-12-06 18:17:31,189 INFO L226 Difference]: Without dead ends: 78117 [2021-12-06 18:17:31,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:31,255 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 1966 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:31,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1985 Valid, 2155 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [909 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:31,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78117 states. [2021-12-06 18:17:34,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78117 to 77962. [2021-12-06 18:17:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77962 states, 67629 states have (on average 1.5390882609531413) internal successors, (104087), 67644 states have internal predecessors, (104087), 10284 states have call successors, (10284), 44 states have call predecessors, (10284), 48 states have return successors, (11429), 10282 states have call predecessors, (11429), 10283 states have call successors, (11429) [2021-12-06 18:17:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77962 states to 77962 states and 125800 transitions. [2021-12-06 18:17:34,724 INFO L78 Accepts]: Start accepts. Automaton has 77962 states and 125800 transitions. Word has length 220 [2021-12-06 18:17:34,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:34,725 INFO L470 AbstractCegarLoop]: Abstraction has 77962 states and 125800 transitions. [2021-12-06 18:17:34,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 77962 states and 125800 transitions. [2021-12-06 18:17:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-06 18:17:34,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:34,774 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:34,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 18:17:34,774 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash 209745673, now seen corresponding path program 1 times [2021-12-06 18:17:34,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:34,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738015902] [2021-12-06 18:17:34,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:34,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:17:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 18:17:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:17:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 18:17:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 18:17:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 18:17:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:17:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-06 18:17:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-06 18:17:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-06 18:17:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:17:34,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:34,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738015902] [2021-12-06 18:17:34,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738015902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:34,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:17:34,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:17:34,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254125962] [2021-12-06 18:17:34,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:34,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:17:34,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:34,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:17:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:17:34,861 INFO L87 Difference]: Start difference. First operand 77962 states and 125800 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:41,025 INFO L93 Difference]: Finished difference Result 145870 states and 239434 transitions. [2021-12-06 18:17:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:17:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 221 [2021-12-06 18:17:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:17:41,399 INFO L225 Difference]: With dead ends: 145870 [2021-12-06 18:17:41,399 INFO L226 Difference]: Without dead ends: 145542 [2021-12-06 18:17:41,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:17:41,435 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 1959 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:17:41,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1977 Valid, 2132 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [902 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:17:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145542 states. [2021-12-06 18:17:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145542 to 145387. [2021-12-06 18:17:47,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145387 states, 126686 states have (on average 1.5381968015408174) internal successors, (194868), 126701 states have internal predecessors, (194868), 18652 states have call successors, (18652), 44 states have call predecessors, (18652), 48 states have return successors, (20843), 18650 states have call predecessors, (20843), 18651 states have call successors, (20843) [2021-12-06 18:17:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145387 states to 145387 states and 234363 transitions. [2021-12-06 18:17:47,650 INFO L78 Accepts]: Start accepts. Automaton has 145387 states and 234363 transitions. Word has length 221 [2021-12-06 18:17:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:17:47,651 INFO L470 AbstractCegarLoop]: Abstraction has 145387 states and 234363 transitions. [2021-12-06 18:17:47,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:17:47,651 INFO L276 IsEmpty]: Start isEmpty. Operand 145387 states and 234363 transitions. [2021-12-06 18:17:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-06 18:17:47,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:17:47,716 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:17:47,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 18:17:47,716 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:17:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:17:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash -229761160, now seen corresponding path program 1 times [2021-12-06 18:17:47,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:17:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099742450] [2021-12-06 18:17:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:47,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:17:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:17:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:17:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:17:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:17:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:17:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:17:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:17:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:17:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:17:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:17:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:17:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:17:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:17:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:17:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:17:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:17:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:17:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:17:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:17:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:17:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:17:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-06 18:17:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-06 18:17:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 18:17:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-06 18:17:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-06 18:17:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-06 18:17:47,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:17:47,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099742450] [2021-12-06 18:17:47,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099742450] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:17:47,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051946321] [2021-12-06 18:17:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:17:47,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:17:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:17:47,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:17:47,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 18:17:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:17:48,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 18:17:48,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:17:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-06 18:17:48,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:17:48,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051946321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:17:48,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:17:48,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 30 [2021-12-06 18:17:48,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959815281] [2021-12-06 18:17:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:17:48,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 18:17:48,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:17:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 18:17:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2021-12-06 18:17:48,549 INFO L87 Difference]: Start difference. First operand 145387 states and 234363 transitions. Second operand has 14 states, 12 states have (on average 12.333333333333334) internal successors, (148), 11 states have internal predecessors, (148), 6 states have call successors, (33), 5 states have call predecessors, (33), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-12-06 18:17:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:17:59,501 INFO L93 Difference]: Finished difference Result 289736 states and 472537 transitions. [2021-12-06 18:17:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 18:17:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 12.333333333333334) internal successors, (148), 11 states have internal predecessors, (148), 6 states have call successors, (33), 5 states have call predecessors, (33), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 229 [2021-12-06 18:17:59,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:18:00,439 INFO L225 Difference]: With dead ends: 289736 [2021-12-06 18:18:00,439 INFO L226 Difference]: Without dead ends: 289414 [2021-12-06 18:18:00,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=1767, Unknown=0, NotChecked=0, Total=1980 [2021-12-06 18:18:00,514 INFO L933 BasicCegarLoop]: 1137 mSDtfsCounter, 1435 mSDsluCounter, 9207 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 10344 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:18:00,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 10344 Invalid, 3401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:18:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289414 states. [2021-12-06 18:18:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289414 to 289393. [2021-12-06 18:18:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289393 states, 252188 states have (on average 1.538788522848034) internal successors, (388064), 252117 states have internal predecessors, (388064), 37083 states have call successors, (37083), 113 states have call predecessors, (37083), 121 states have return successors, (44763), 37190 states have call predecessors, (44763), 37080 states have call successors, (44763) [2021-12-06 18:18:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289393 states to 289393 states and 469910 transitions. [2021-12-06 18:18:14,001 INFO L78 Accepts]: Start accepts. Automaton has 289393 states and 469910 transitions. Word has length 229 [2021-12-06 18:18:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:18:14,001 INFO L470 AbstractCegarLoop]: Abstraction has 289393 states and 469910 transitions. [2021-12-06 18:18:14,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 12.333333333333334) internal successors, (148), 11 states have internal predecessors, (148), 6 states have call successors, (33), 5 states have call predecessors, (33), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-12-06 18:18:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 289393 states and 469910 transitions. [2021-12-06 18:18:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-06 18:18:14,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:18:14,133 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:18:14,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 18:18:14,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:18:14,336 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:18:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:18:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash 277083822, now seen corresponding path program 1 times [2021-12-06 18:18:14,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:18:14,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656982079] [2021-12-06 18:18:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:18:14,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:18:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:18:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:18:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:18:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:18:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:18:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:18:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:18:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:18:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:18:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:18:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:18:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:18:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:18:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:18:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:18:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:18:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:18:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:18:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:18:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:18:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:18:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:18:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 18:18:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 18:18:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-06 18:18:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:18:14,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:18:14,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656982079] [2021-12-06 18:18:14,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656982079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:18:14,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:18:14,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-06 18:18:14,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102534671] [2021-12-06 18:18:14,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:18:14,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 18:18:14,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:18:14,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 18:18:14,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:18:14,550 INFO L87 Difference]: Start difference. First operand 289393 states and 469910 transitions. Second operand has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 11 states have internal predecessors, (139), 7 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-12-06 18:18:27,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:18:27,817 INFO L93 Difference]: Finished difference Result 291098 states and 479131 transitions. [2021-12-06 18:18:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-06 18:18:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 11 states have internal predecessors, (139), 7 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 230 [2021-12-06 18:18:27,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:18:28,658 INFO L225 Difference]: With dead ends: 291098 [2021-12-06 18:18:28,658 INFO L226 Difference]: Without dead ends: 290090 [2021-12-06 18:18:28,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2021-12-06 18:18:28,738 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 2993 mSDsluCounter, 5305 mSDsCounter, 0 mSdLazyCounter, 8259 mSolverCounterSat, 1619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 9878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1619 IncrementalHoareTripleChecker+Valid, 8259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:18:28,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3012 Valid, 6124 Invalid, 9878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1619 Valid, 8259 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-06 18:18:28,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290090 states. [2021-12-06 18:18:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290090 to 289615. [2021-12-06 18:18:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289615 states, 252319 states have (on average 1.5386475057367857) internal successors, (388230), 252266 states have internal predecessors, (388230), 37154 states have call successors, (37154), 122 states have call predecessors, (37154), 141 states have return successors, (44887), 37267 states have call predecessors, (44887), 37145 states have call successors, (44887) [2021-12-06 18:18:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289615 states to 289615 states and 470271 transitions. [2021-12-06 18:18:42,958 INFO L78 Accepts]: Start accepts. Automaton has 289615 states and 470271 transitions. Word has length 230 [2021-12-06 18:18:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:18:42,958 INFO L470 AbstractCegarLoop]: Abstraction has 289615 states and 470271 transitions. [2021-12-06 18:18:42,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 11 states have internal predecessors, (139), 7 states have call successors, (33), 10 states have call predecessors, (33), 2 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-12-06 18:18:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 289615 states and 470271 transitions. [2021-12-06 18:18:43,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-06 18:18:43,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:18:43,098 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:18:43,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 18:18:43,098 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:18:43,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:18:43,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1097153533, now seen corresponding path program 1 times [2021-12-06 18:18:43,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:18:43,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539305039] [2021-12-06 18:18:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:18:43,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:18:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:18:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:18:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:18:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:18:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:18:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:18:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:18:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:18:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:18:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:18:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:18:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:18:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:18:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:18:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:18:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:18:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:18:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 18:18:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 18:18:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 18:18:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 18:18:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 18:18:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:18:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-06 18:18:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-06 18:18:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-06 18:18:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-06 18:18:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:18:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-12-06 18:18:43,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:18:43,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539305039] [2021-12-06 18:18:43,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539305039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:18:43,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:18:43,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:18:43,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789169532] [2021-12-06 18:18:43,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:18:43,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:18:43,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:18:43,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:18:43,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:18:43,288 INFO L87 Difference]: Start difference. First operand 289615 states and 470271 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-06 18:19:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:19:07,418 INFO L93 Difference]: Finished difference Result 869378 states and 1425287 transitions. [2021-12-06 18:19:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:19:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 238 [2021-12-06 18:19:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:19:09,743 INFO L225 Difference]: With dead ends: 869378 [2021-12-06 18:19:09,743 INFO L226 Difference]: Without dead ends: 579798 [2021-12-06 18:19:10,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:19:10,215 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 4352 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 2017 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2017 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:19:10,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4376 Valid, 2083 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2017 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-06 18:19:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579798 states. [2021-12-06 18:19:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579798 to 578973. [2021-12-06 18:19:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578973 states, 504486 states have (on average 1.538706723278743) internal successors, (776256), 504349 states have internal predecessors, (776256), 74217 states have call successors, (74217), 237 states have call predecessors, (74217), 269 states have return successors, (89709), 74450 states have call predecessors, (89709), 74199 states have call successors, (89709) [2021-12-06 18:19:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578973 states to 578973 states and 940182 transitions. [2021-12-06 18:19:38,935 INFO L78 Accepts]: Start accepts. Automaton has 578973 states and 940182 transitions. Word has length 238 [2021-12-06 18:19:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:19:38,935 INFO L470 AbstractCegarLoop]: Abstraction has 578973 states and 940182 transitions. [2021-12-06 18:19:38,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-06 18:19:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 578973 states and 940182 transitions. [2021-12-06 18:19:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-06 18:19:39,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:19:39,333 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:19:39,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 18:19:39,333 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:19:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:19:39,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2117937415, now seen corresponding path program 1 times [2021-12-06 18:19:39,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:19:39,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522327244] [2021-12-06 18:19:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:19:39,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:19:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:19:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:19:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:19:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:19:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:19:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:19:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:19:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:19:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:19:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:19:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:19:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:19:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:19:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:19:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:19:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:19:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:19:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:19:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:19:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:19:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:19:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:19:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:19:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:19:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:19:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 18:19:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 18:19:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-06 18:19:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-06 18:19:39,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:19:39,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522327244] [2021-12-06 18:19:39,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522327244] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:19:39,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547298391] [2021-12-06 18:19:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:19:39,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:19:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:19:39,499 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:19:39,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 18:19:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:19:39,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 18:19:39,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:19:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-06 18:19:39,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:19:39,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547298391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:19:39,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:19:39,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [19] total 32 [2021-12-06 18:19:39,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284008148] [2021-12-06 18:19:39,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:19:39,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 18:19:39,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:19:39,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 18:19:39,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2021-12-06 18:19:39,929 INFO L87 Difference]: Start difference. First operand 578973 states and 940182 transitions. Second operand has 15 states, 13 states have (on average 11.153846153846153) internal successors, (145), 12 states have internal predecessors, (145), 7 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) [2021-12-06 18:20:00,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:20:00,322 INFO L93 Difference]: Finished difference Result 580063 states and 941775 transitions. [2021-12-06 18:20:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:20:00,323 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 11.153846153846153) internal successors, (145), 12 states have internal predecessors, (145), 7 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) Word has length 230 [2021-12-06 18:20:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:20:02,292 INFO L225 Difference]: With dead ends: 580063 [2021-12-06 18:20:02,292 INFO L226 Difference]: Without dead ends: 578993 [2021-12-06 18:20:02,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 18:20:02,449 INFO L933 BasicCegarLoop]: 847 mSDtfsCounter, 97 mSDsluCounter, 10949 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 11796 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:20:02,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 11796 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:20:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578993 states. [2021-12-06 18:20:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578993 to 578979. [2021-12-06 18:20:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578979 states, 504489 states have (on average 1.5387035197992425) internal successors, (776259), 504355 states have internal predecessors, (776259), 74217 states have call successors, (74217), 237 states have call predecessors, (74217), 272 states have return successors, (89721), 74450 states have call predecessors, (89721), 74199 states have call successors, (89721) [2021-12-06 18:20:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578979 states to 578979 states and 940197 transitions. [2021-12-06 18:20:30,409 INFO L78 Accepts]: Start accepts. Automaton has 578979 states and 940197 transitions. Word has length 230 [2021-12-06 18:20:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:20:30,409 INFO L470 AbstractCegarLoop]: Abstraction has 578979 states and 940197 transitions. [2021-12-06 18:20:30,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 11.153846153846153) internal successors, (145), 12 states have internal predecessors, (145), 7 states have call successors, (33), 5 states have call predecessors, (33), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) [2021-12-06 18:20:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 578979 states and 940197 transitions. [2021-12-06 18:20:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-06 18:20:30,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:20:30,689 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:20:30,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 18:20:30,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-06 18:20:30,892 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:20:30,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:20:30,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1335738692, now seen corresponding path program 1 times [2021-12-06 18:20:30,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:20:30,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106556492] [2021-12-06 18:20:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:20:30,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:20:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:20:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:20:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:20:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:20:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:20:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:20:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:20:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:20:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:20:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:20:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:20:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:20:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:20:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:20:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:20:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:20:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:20:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:20:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:20:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:20:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:20:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:20:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:20:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:20:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:20:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 18:20:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 18:20:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-06 18:20:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:20:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:20:31,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:20:31,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106556492] [2021-12-06 18:20:31,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106556492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:20:31,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:20:31,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 18:20:31,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430920282] [2021-12-06 18:20:31,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:20:31,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:20:31,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:20:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:20:31,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:20:31,134 INFO L87 Difference]: Start difference. First operand 578979 states and 940197 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-06 18:21:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,858 INFO L93 Difference]: Finished difference Result 872749 states and 1456291 transitions. [2021-12-06 18:21:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 18:21:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 230 [2021-12-06 18:21:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:10,094 INFO L225 Difference]: With dead ends: 872749 [2021-12-06 18:21:10,094 INFO L226 Difference]: Without dead ends: 871311 [2021-12-06 18:21:10,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:21:10,356 INFO L933 BasicCegarLoop]: 1345 mSDtfsCounter, 5595 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 2816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5609 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 7249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2816 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:10,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5609 Valid, 3264 Invalid, 7249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2816 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-06 18:21:11,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871311 states. [2021-12-06 18:21:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871311 to 869251. [2021-12-06 18:21:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869251 states, 757042 states have (on average 1.538546078024733) internal successors, (1164744), 756820 states have internal predecessors, (1164744), 111541 states have call successors, (111541), 556 states have call predecessors, (111541), 667 states have return successors, (149216), 112049 states have call predecessors, (149216), 111487 states have call successors, (149216) [2021-12-06 18:21:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869251 states to 869251 states and 1425501 transitions. [2021-12-06 18:21:57,777 INFO L78 Accepts]: Start accepts. Automaton has 869251 states and 1425501 transitions. Word has length 230 [2021-12-06 18:21:57,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:57,777 INFO L470 AbstractCegarLoop]: Abstraction has 869251 states and 1425501 transitions. [2021-12-06 18:21:57,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-06 18:21:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 869251 states and 1425501 transitions. [2021-12-06 18:21:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-06 18:21:58,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:58,211 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:58,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 18:21:58,212 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1614378874, now seen corresponding path program 1 times [2021-12-06 18:21:58,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:58,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324060703] [2021-12-06 18:21:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:58,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:21:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:21:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:21:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:21:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:21:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:21:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:21:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:21:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:21:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:21:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:21:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:21:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:21:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:21:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:21:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:21:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:21:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:21:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:21:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 18:21:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:21:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 18:21:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:21:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:21:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-06 18:21:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 18:21:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-06 18:21:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-06 18:21:58,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:58,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324060703] [2021-12-06 18:21:58,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324060703] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:21:58,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132759449] [2021-12-06 18:21:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:58,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:58,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:21:58,392 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:21:58,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 18:21:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:58,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 18:21:58,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:21:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 18:21:59,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:21:59,348 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:21:59,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132759449] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 18:21:59,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 18:21:59,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18, 5] total 23 [2021-12-06 18:21:59,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759556771] [2021-12-06 18:21:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:59,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:21:59,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:21:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:21:59,349 INFO L87 Difference]: Start difference. First operand 869251 states and 1425501 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:22:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:22:36,201 INFO L93 Difference]: Finished difference Result 891255 states and 1461547 transitions. [2021-12-06 18:22:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:22:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) Word has length 223 [2021-12-06 18:22:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:22:39,536 INFO L225 Difference]: With dead ends: 891255 [2021-12-06 18:22:39,536 INFO L226 Difference]: Without dead ends: 885653 [2021-12-06 18:22:39,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 490 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2021-12-06 18:22:39,818 INFO L933 BasicCegarLoop]: 1123 mSDtfsCounter, 1964 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:22:39,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1971 Valid, 4389 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:22:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885653 states. [2021-12-06 18:23:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885653 to 885539. [2021-12-06 18:23:26,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885539 states, 768359 states have (on average 1.5360554115979639) internal successors, (1180242), 768741 states have internal predecessors, (1180242), 114694 states have call successors, (114694), 1964 states have call predecessors, (114694), 2485 states have return successors, (156871), 115517 states have call predecessors, (156871), 114448 states have call successors, (156871) [2021-12-06 18:23:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885539 states to 885539 states and 1451807 transitions. [2021-12-06 18:23:29,458 INFO L78 Accepts]: Start accepts. Automaton has 885539 states and 1451807 transitions. Word has length 223 [2021-12-06 18:23:29,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:29,459 INFO L470 AbstractCegarLoop]: Abstraction has 885539 states and 1451807 transitions. [2021-12-06 18:23:29,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 18:23:29,459 INFO L276 IsEmpty]: Start isEmpty. Operand 885539 states and 1451807 transitions. [2021-12-06 18:23:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-06 18:23:30,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:30,142 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:30,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 18:23:30,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84820738-4d0b-41c1-a8f6-21ece484f161/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-06 18:23:30,344 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:30,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash -141202766, now seen corresponding path program 1 times [2021-12-06 18:23:30,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169552102] [2021-12-06 18:23:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:30,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:23:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:23:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:23:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:23:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:23:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:23:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:23:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:23:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:23:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:23:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:23:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:23:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:23:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:23:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:23:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:23:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:23:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:23:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:23:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 18:23:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 18:23:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 18:23:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:23:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 18:23:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:23:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 18:23:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 18:23:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:23:30,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:30,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169552102] [2021-12-06 18:23:30,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169552102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:30,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:30,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-12-06 18:23:30,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564484082] [2021-12-06 18:23:30,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:30,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 18:23:30,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 18:23:30,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:23:30,551 INFO L87 Difference]: Start difference. First operand 885539 states and 1451807 transitions. Second operand has 21 states, 19 states have (on average 7.105263157894737) internal successors, (135), 13 states have internal predecessors, (135), 9 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2021-12-06 18:24:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:24:13,372 INFO L93 Difference]: Finished difference Result 905299 states and 1515162 transitions. [2021-12-06 18:24:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-06 18:24:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.105263157894737) internal successors, (135), 13 states have internal predecessors, (135), 9 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) Word has length 224 [2021-12-06 18:24:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:24:17,022 INFO L225 Difference]: With dead ends: 905299 [2021-12-06 18:24:17,023 INFO L226 Difference]: Without dead ends: 894785 [2021-12-06 18:24:17,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=547, Invalid=3485, Unknown=0, NotChecked=0, Total=4032 [2021-12-06 18:24:17,333 INFO L933 BasicCegarLoop]: 848 mSDtfsCounter, 2431 mSDsluCounter, 6615 mSDsCounter, 0 mSdLazyCounter, 11059 mSolverCounterSat, 1393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 7463 SdHoareTripleChecker+Invalid, 12452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1393 IncrementalHoareTripleChecker+Valid, 11059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:24:17,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2431 Valid, 7463 Invalid, 12452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1393 Valid, 11059 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-06 18:24:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894785 states. [2021-12-06 18:25:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894785 to 886493. [2021-12-06 18:25:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886493 states, 768966 states have (on average 1.5357922196820146) internal successors, (1180972), 769391 states have internal predecessors, (1180972), 114950 states have call successors, (114950), 1985 states have call predecessors, (114950), 2576 states have return successors, (157323), 115816 states have call predecessors, (157323), 114704 states have call successors, (157323) [2021-12-06 18:25:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886493 states to 886493 states and 1453245 transitions. [2021-12-06 18:25:07,641 INFO L78 Accepts]: Start accepts. Automaton has 886493 states and 1453245 transitions. Word has length 224 [2021-12-06 18:25:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:25:07,641 INFO L470 AbstractCegarLoop]: Abstraction has 886493 states and 1453245 transitions. [2021-12-06 18:25:07,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.105263157894737) internal successors, (135), 13 states have internal predecessors, (135), 9 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2021-12-06 18:25:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 886493 states and 1453245 transitions. [2021-12-06 18:25:08,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-06 18:25:08,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:25:08,451 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:25:08,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 18:25:08,451 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:25:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:25:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2058810272, now seen corresponding path program 1 times [2021-12-06 18:25:08,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:25:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337546778] [2021-12-06 18:25:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:25:08,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:25:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:25:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:25:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 18:25:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:25:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:25:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 18:25:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 18:25:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:25:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:25:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:25:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:25:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:25:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:25:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:25:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 18:25:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:25:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 18:25:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:25:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:25:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 18:25:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:25:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:25:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 18:25:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 18:25:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:25:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-06 18:25:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 18:25:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-06 18:25:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:25:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-06 18:25:08,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:25:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337546778] [2021-12-06 18:25:08,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337546778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:25:08,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:25:08,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-06 18:25:08,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766322474] [2021-12-06 18:25:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:25:08,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 18:25:08,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:25:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 18:25:08,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:25:08,639 INFO L87 Difference]: Start difference. First operand 886493 states and 1453245 transitions. Second operand has 22 states, 20 states have (on average 7.0) internal successors, (140), 14 states have internal predecessors, (140), 9 states have call successors, (33), 9 states have call predecessors, (33), 2 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2021-12-06 18:25:50,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:25:50,546 INFO L93 Difference]: Finished difference Result 907244 states and 1517561 transitions. [2021-12-06 18:25:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-12-06 18:25:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.0) internal successors, (140), 14 states have internal predecessors, (140), 9 states have call successors, (33), 9 states have call predecessors, (33), 2 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) Word has length 231 [2021-12-06 18:25:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:25:53,903 INFO L225 Difference]: With dead ends: 907244 [2021-12-06 18:25:53,903 INFO L226 Difference]: Without dead ends: 896074 [2021-12-06 18:25:54,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=607, Invalid=4085, Unknown=0, NotChecked=0, Total=4692 [2021-12-06 18:25:54,204 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 2565 mSDsluCounter, 6984 mSDsCounter, 0 mSdLazyCounter, 11573 mSolverCounterSat, 1496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 7821 SdHoareTripleChecker+Invalid, 13069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1496 IncrementalHoareTripleChecker+Valid, 11573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:25:54,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2565 Valid, 7821 Invalid, 13069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1496 Valid, 11573 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-06 18:25:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896074 states.