./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:39:44,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:39:44,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:39:44,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:39:44,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:39:44,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:39:44,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:39:44,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:39:44,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:39:44,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:39:44,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:39:44,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:39:44,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:39:44,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:39:44,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:39:44,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:39:44,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:39:44,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:39:44,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:39:44,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:39:44,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:39:44,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:39:44,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:39:44,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:39:44,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:39:44,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:39:44,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:39:44,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:39:44,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:39:44,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:39:44,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:39:44,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:39:44,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:39:44,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:39:44,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:39:44,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:39:44,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:39:44,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:39:44,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:39:44,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:39:44,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:39:44,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:39:44,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:39:44,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:39:44,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:39:44,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:39:44,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:39:44,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:39:44,574 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:39:44,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:39:44,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:39:44,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:39:44,575 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:39:44,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:39:44,575 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:39:44,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:39:44,575 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:39:44,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:39:44,576 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:39:44,576 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:39:44,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:39:44,577 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:39:44,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:39:44,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:39:44,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:39:44,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:39:44,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:39:44,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:39:44,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:39:44,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:39:44,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:39:44,580 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:39:44,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:39:44,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:39:44,580 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:39:44,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:39:44,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:39:44,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:39:44,581 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_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df [2022-12-14 08:39:44,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:39:44,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:39:44,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:39:44,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:39:44,821 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:39:44,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2022-12-14 08:39:47,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:39:47,631 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:39:47,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2022-12-14 08:39:47,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/data/1ee307a5a/6355f02c0b5246a6a9cd35a394b67210/FLAG84d2b2f7d [2022-12-14 08:39:47,971 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/data/1ee307a5a/6355f02c0b5246a6a9cd35a394b67210 [2022-12-14 08:39:47,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:39:47,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:39:47,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:39:47,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:39:47,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:39:47,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:39:47" (1/1) ... [2022-12-14 08:39:47,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c7772a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:47, skipping insertion in model container [2022-12-14 08:39:47,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:39:47" (1/1) ... [2022-12-14 08:39:47,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:39:48,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:39:48,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2022-12-14 08:39:48,271 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,277 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,290 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,292 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,294 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,295 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,337 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,338 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,341 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:39:48,410 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:39:48,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2022-12-14 08:39:48,439 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,440 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,444 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,447 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,452 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,453 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,454 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:39:48,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:39:48,507 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:39:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48 WrapperNode [2022-12-14 08:39:48,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:39:48,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:39:48,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:39:48,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:39:48,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,580 INFO L138 Inliner]: procedures = 135, calls = 235, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1097 [2022-12-14 08:39:48,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:39:48,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:39:48,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:39:48,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:39:48,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:39:48,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:39:48,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:39:48,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:39:48,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (1/1) ... [2022-12-14 08:39:48,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:39:48,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:39:48,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:39:48,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 08:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 08:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:39:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:39:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:39:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:39:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 08:39:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 08:39:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:39:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:39:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 08:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 08:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 08:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 08:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 08:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 08:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 08:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 08:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 08:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 08:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:39:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:39:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:39:48,865 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:39:48,867 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:39:49,415 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:39:49,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:39:49,733 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:39:49,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:39:49 BoogieIcfgContainer [2022-12-14 08:39:49,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:39:49,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:39:49,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:39:49,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:39:49,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:39:47" (1/3) ... [2022-12-14 08:39:49,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12956d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:39:49, skipping insertion in model container [2022-12-14 08:39:49,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:39:48" (2/3) ... [2022-12-14 08:39:49,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12956d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:39:49, skipping insertion in model container [2022-12-14 08:39:49,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:39:49" (3/3) ... [2022-12-14 08:39:49,743 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2022-12-14 08:39:49,761 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:39:49,761 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:39:49,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:39:49,820 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@716d8877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:39:49,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:39:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 125 states have (on average 1.304) internal successors, (163), 129 states have internal predecessors, (163), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 08:39:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 08:39:49,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:49,849 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 08:39:49,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1957498850, now seen corresponding path program 1 times [2022-12-14 08:39:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:49,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065869789] [2022-12-14 08:39:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:50,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:50,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065869789] [2022-12-14 08:39:50,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065869789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:50,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:50,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:39:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388589877] [2022-12-14 08:39:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:50,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:39:50,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:39:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:39:50,149 INFO L87 Difference]: Start difference. First operand has 216 states, 125 states have (on average 1.304) internal successors, (163), 129 states have internal predecessors, (163), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:50,260 INFO L93 Difference]: Finished difference Result 349 states and 464 transitions. [2022-12-14 08:39:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:39:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 80 [2022-12-14 08:39:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:50,273 INFO L225 Difference]: With dead ends: 349 [2022-12-14 08:39:50,273 INFO L226 Difference]: Without dead ends: 213 [2022-12-14 08:39:50,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:39:50,281 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:50,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:39:50,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-12-14 08:39:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-12-14 08:39:50,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 08:39:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2022-12-14 08:39:50,333 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 286 transitions. Word has length 80 [2022-12-14 08:39:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:50,334 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 286 transitions. [2022-12-14 08:39:50,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 286 transitions. [2022-12-14 08:39:50,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 08:39:50,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:50,336 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 08:39:50,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:39:50,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2039151093, now seen corresponding path program 1 times [2022-12-14 08:39:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:50,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272116330] [2022-12-14 08:39:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:50,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:50,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272116330] [2022-12-14 08:39:50,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272116330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:50,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:50,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:39:50,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806919519] [2022-12-14 08:39:50,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:50,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:39:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:39:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:50,541 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:50,662 INFO L93 Difference]: Finished difference Result 345 states and 452 transitions. [2022-12-14 08:39:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:39:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 81 [2022-12-14 08:39:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:50,664 INFO L225 Difference]: With dead ends: 345 [2022-12-14 08:39:50,664 INFO L226 Difference]: Without dead ends: 215 [2022-12-14 08:39:50,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:50,665 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:50,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:39:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-12-14 08:39:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-12-14 08:39:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 125 states have (on average 1.272) internal successors, (159), 128 states have internal predecessors, (159), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 08:39:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 288 transitions. [2022-12-14 08:39:50,678 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 288 transitions. Word has length 81 [2022-12-14 08:39:50,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:50,678 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 288 transitions. [2022-12-14 08:39:50,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,678 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 288 transitions. [2022-12-14 08:39:50,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 08:39:50,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:50,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:39:50,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:39:50,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:50,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:50,681 INFO L85 PathProgramCache]: Analyzing trace with hash 499302186, now seen corresponding path program 1 times [2022-12-14 08:39:50,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:50,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494515243] [2022-12-14 08:39:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:50,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:50,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:50,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494515243] [2022-12-14 08:39:50,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494515243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:50,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:50,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:39:50,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046457955] [2022-12-14 08:39:50,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:50,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:39:50,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:39:50,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:50,788 INFO L87 Difference]: Start difference. First operand 215 states and 288 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:50,913 INFO L93 Difference]: Finished difference Result 460 states and 635 transitions. [2022-12-14 08:39:50,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:39:50,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-12-14 08:39:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:50,916 INFO L225 Difference]: With dead ends: 460 [2022-12-14 08:39:50,916 INFO L226 Difference]: Without dead ends: 263 [2022-12-14 08:39:50,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:50,919 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 57 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:50,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 507 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:39:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-12-14 08:39:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 258. [2022-12-14 08:39:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 160 states have internal predecessors, (212), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 08:39:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 363 transitions. [2022-12-14 08:39:50,948 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 363 transitions. Word has length 86 [2022-12-14 08:39:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:50,948 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 363 transitions. [2022-12-14 08:39:50,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 08:39:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 363 transitions. [2022-12-14 08:39:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 08:39:50,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:50,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:39:50,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:39:50,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:50,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1661818993, now seen corresponding path program 1 times [2022-12-14 08:39:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:50,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271939752] [2022-12-14 08:39:50,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:51,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:51,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271939752] [2022-12-14 08:39:51,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271939752] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:39:51,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377179745] [2022-12-14 08:39:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:39:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:39:51,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:39:51,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:39:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:51,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:39:51,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:39:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:51,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:39:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:39:51,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377179745] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:39:51,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1384113417] [2022-12-14 08:39:51,522 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-12-14 08:39:51,522 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:39:51,526 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:39:51,532 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:39:51,532 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:40:35,123 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 08:40:35,419 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 482 for LOIs [2022-12-14 08:41:11,613 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 08:41:11,901 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:41:12,195 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 480 for LOIs [2022-12-14 08:41:45,971 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 438 for LOIs [2022-12-14 08:41:46,244 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 08:41:46,317 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 08:41:46,359 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 08:41:46,953 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 254 for LOIs [2022-12-14 08:41:46,998 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:43:51,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1384113417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:43:51,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:43:51,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2022-12-14 08:43:51,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231122756] [2022-12-14 08:43:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:43:51,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-14 08:43:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:43:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-14 08:43:51,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3380, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 08:43:51,213 INFO L87 Difference]: Start difference. First operand 258 states and 363 transitions. Second operand has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 08:44:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:55,797 INFO L93 Difference]: Finished difference Result 728 states and 1111 transitions. [2022-12-14 08:44:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 08:44:55,797 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 87 [2022-12-14 08:44:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:55,800 INFO L225 Difference]: With dead ends: 728 [2022-12-14 08:44:55,800 INFO L226 Difference]: Without dead ends: 488 [2022-12-14 08:44:55,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 162.0s TimeCoverageRelationStatistics Valid=274, Invalid=5128, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 08:44:55,802 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 335 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 8757 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 8238 SdHoareTripleChecker+Invalid, 8797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 8757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:55,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 8238 Invalid, 8797 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [40 Valid, 8757 Invalid, 0 Unknown, 0 Unchecked, 26.1s Time] [2022-12-14 08:44:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-12-14 08:44:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 388. [2022-12-14 08:44:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 261 states have (on average 1.4061302681992338) internal successors, (367), 265 states have internal predecessors, (367), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (94), 91 states have call predecessors, (94), 93 states have call successors, (94) [2022-12-14 08:44:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 555 transitions. [2022-12-14 08:44:55,970 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 555 transitions. Word has length 87 [2022-12-14 08:44:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:55,970 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 555 transitions. [2022-12-14 08:44:55,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 08:44:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 555 transitions. [2022-12-14 08:44:55,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 08:44:55,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:55,972 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:55,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:44:56,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:44:56,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:56,176 INFO L85 PathProgramCache]: Analyzing trace with hash -242909152, now seen corresponding path program 1 times [2022-12-14 08:44:56,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:56,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585709350] [2022-12-14 08:44:56,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:56,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:44:56,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:56,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585709350] [2022-12-14 08:44:56,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585709350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:56,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:56,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:44:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315833119] [2022-12-14 08:44:56,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:56,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:44:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:56,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:44:56,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:44:56,273 INFO L87 Difference]: Start difference. First operand 388 states and 555 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:44:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:56,625 INFO L93 Difference]: Finished difference Result 849 states and 1244 transitions. [2022-12-14 08:44:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:44:56,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2022-12-14 08:44:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:56,628 INFO L225 Difference]: With dead ends: 849 [2022-12-14 08:44:56,629 INFO L226 Difference]: Without dead ends: 503 [2022-12-14 08:44:56,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:44:56,630 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 55 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:56,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 520 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:44:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-12-14 08:44:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 496. [2022-12-14 08:44:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 344 states have (on average 1.444767441860465) internal successors, (497), 348 states have internal predecessors, (497), 119 states have call successors, (119), 33 states have call predecessors, (119), 32 states have return successors, (119), 116 states have call predecessors, (119), 118 states have call successors, (119) [2022-12-14 08:44:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 735 transitions. [2022-12-14 08:44:56,838 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 735 transitions. Word has length 92 [2022-12-14 08:44:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:56,838 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 735 transitions. [2022-12-14 08:44:56,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:44:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 735 transitions. [2022-12-14 08:44:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 08:44:56,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:56,840 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:56,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:44:56,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1367129506, now seen corresponding path program 1 times [2022-12-14 08:44:56,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:56,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413835369] [2022-12-14 08:44:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:56,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:44:56,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:56,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413835369] [2022-12-14 08:44:56,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413835369] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:44:56,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413357940] [2022-12-14 08:44:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:44:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:44:56,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:44:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:44:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:57,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:44:57,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:44:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:44:57,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:44:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:44:57,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413357940] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:44:57,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [551624652] [2022-12-14 08:44:57,192 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 08:44:57,193 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:44:57,193 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:44:57,193 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:44:57,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:45:44,526 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:45:44,826 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:45:45,112 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:46:27,094 WARN L233 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 583 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:46:41,888 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 553 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:46:45,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [551624652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:45,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:46:45,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 08:46:45,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280354051] [2022-12-14 08:46:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:45,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 08:46:45,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:45,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 08:46:45,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:46:45,719 INFO L87 Difference]: Start difference. First operand 496 states and 735 transitions. Second operand has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 08:46:53,359 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 492 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:47:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:16,683 INFO L93 Difference]: Finished difference Result 933 states and 1426 transitions. [2022-12-14 08:47:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 08:47:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 93 [2022-12-14 08:47:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:16,686 INFO L225 Difference]: With dead ends: 933 [2022-12-14 08:47:16,686 INFO L226 Difference]: Without dead ends: 603 [2022-12-14 08:47:16,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 83.8s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 08:47:16,687 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 198 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:16,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 4275 Invalid, 2388 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 08:47:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-12-14 08:47:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 552. [2022-12-14 08:47:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 397 states have (on average 1.4634760705289673) internal successors, (581), 402 states have internal predecessors, (581), 121 states have call successors, (121), 34 states have call predecessors, (121), 33 states have return successors, (121), 117 states have call predecessors, (121), 120 states have call successors, (121) [2022-12-14 08:47:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 823 transitions. [2022-12-14 08:47:16,955 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 823 transitions. Word has length 93 [2022-12-14 08:47:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:16,955 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 823 transitions. [2022-12-14 08:47:16,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 08:47:16,955 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 823 transitions. [2022-12-14 08:47:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 08:47:16,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:16,957 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:16,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:47:17,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:47:17,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:47:17,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:17,160 INFO L85 PathProgramCache]: Analyzing trace with hash -239534919, now seen corresponding path program 1 times [2022-12-14 08:47:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:17,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590173135] [2022-12-14 08:47:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:17,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:47:17,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:17,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590173135] [2022-12-14 08:47:17,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590173135] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:47:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248023917] [2022-12-14 08:47:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:17,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:47:17,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:47:17,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:47:17,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:47:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:17,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:47:17,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:47:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:47:17,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:47:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:47:17,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248023917] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:47:17,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [224744114] [2022-12-14 08:47:17,569 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 08:47:17,569 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:47:17,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:47:17,569 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:47:17,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:48:06,488 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:48:06,776 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 08:48:06,840 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 08:48:06,903 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-12-14 08:48:06,967 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:48:07,264 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:48:51,003 WARN L233 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 623 DAG size of output: 480 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:49:07,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [224744114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:49:07,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:49:07,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 08:49:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652538927] [2022-12-14 08:49:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:49:07,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:49:07,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:49:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:49:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:49:07,406 INFO L87 Difference]: Start difference. First operand 552 states and 823 transitions. Second operand has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 08:49:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:49:29,021 INFO L93 Difference]: Finished difference Result 1002 states and 1533 transitions. [2022-12-14 08:49:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 08:49:29,022 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 96 [2022-12-14 08:49:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:49:29,024 INFO L225 Difference]: With dead ends: 1002 [2022-12-14 08:49:29,024 INFO L226 Difference]: Without dead ends: 672 [2022-12-14 08:49:29,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 68.4s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 08:49:29,025 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 106 mSDsluCounter, 4519 mSDsCounter, 0 mSdLazyCounter, 3950 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:49:29,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 4781 Invalid, 3960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3950 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 08:49:29,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-14 08:49:29,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 619. [2022-12-14 08:49:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 457 states have (on average 1.474835886214442) internal successors, (674), 463 states have internal predecessors, (674), 125 states have call successors, (125), 37 states have call predecessors, (125), 36 states have return successors, (125), 120 states have call predecessors, (125), 124 states have call successors, (125) [2022-12-14 08:49:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 924 transitions. [2022-12-14 08:49:29,717 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 924 transitions. Word has length 96 [2022-12-14 08:49:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:49:29,717 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 924 transitions. [2022-12-14 08:49:29,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 08:49:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 924 transitions. [2022-12-14 08:49:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 08:49:29,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:29,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:49:29,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:49:29,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:49:29,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:49:29,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash -33208654, now seen corresponding path program 1 times [2022-12-14 08:49:29,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:49:29,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001375624] [2022-12-14 08:49:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:29,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:49:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:49:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:49:29,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:49:29,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001375624] [2022-12-14 08:49:29,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001375624] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:49:29,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842293600] [2022-12-14 08:49:29,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:49:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:49:30,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:49:30,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223d0ae8-dcef-4f8e-b006-f04318dcbf99/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:49:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:49:30,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:49:30,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:49:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:49:30,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:49:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:49:30,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842293600] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:49:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1271616783] [2022-12-14 08:49:30,258 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 08:49:30,258 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:49:30,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:49:30,259 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:49:30,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:50:38,789 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:50:39,078 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs [2022-12-14 08:51:14,373 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 08:51:14,660 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:51:14,952 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 481 for LOIs [2022-12-14 08:51:48,036 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 08:51:48,308 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 08:51:48,378 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 08:51:48,420 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-12-14 08:51:49,012 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 255 for LOIs [2022-12-14 08:51:49,057 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:52:32,677 WARN L233 SmtUtils]: Spent 11.36s on a formula simplification. DAG size of input: 603 DAG size of output: 478 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:52:46,778 WARN L233 SmtUtils]: Spent 13.82s on a formula simplification. DAG size of input: 605 DAG size of output: 481 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:52:52,236 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 604 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:52:58,173 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 602 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:04,120 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 601 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:10,659 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 599 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:21,353 WARN L233 SmtUtils]: Spent 10.36s on a formula simplification. DAG size of input: 598 DAG size of output: 477 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:32,868 WARN L233 SmtUtils]: Spent 11.14s on a formula simplification. DAG size of input: 596 DAG size of output: 475 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:38,493 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 595 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:53:44,207 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 593 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)