./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW --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 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 --- 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-4e7fbc6 [2022-11-23 15:13:58,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:13:58,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:13:58,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:13:58,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:13:58,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:13:58,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:13:58,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:13:58,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:13:58,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:13:58,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:13:58,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:13:58,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:13:58,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:13:58,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:13:58,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:13:58,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:13:58,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:13:58,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:13:58,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:13:58,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:13:58,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:13:58,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:13:58,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:13:58,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:13:58,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:13:58,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:13:58,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:13:58,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:13:58,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:13:58,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:13:58,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:13:58,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:13:58,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:13:58,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:13:58,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:13:58,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:13:58,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:13:58,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:13:58,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:13:58,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:13:58,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:13:58,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:13:58,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:13:58,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:13:58,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:13:58,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:13:58,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:13:58,605 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:13:58,606 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:13:58,606 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:13:58,606 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:13:58,607 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:13:58,607 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:13:58,608 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:13:58,608 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:13:58,608 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:13:58,608 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:13:58,608 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:13:58,609 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:13:58,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:13:58,610 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:13:58,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:13:58,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:13:58,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:13:58,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:13:58,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:13:58,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:13:58,611 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:13:58,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:13:58,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:13:58,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:13:58,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:13:58,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:13:58,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:13:58,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:13:58,613 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:13:58,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:13:58,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:13:58,614 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:13:58,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:13:58,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:13:58,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:13:58,615 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_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 [2022-11-23 15:13:58,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:13:58,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:13:58,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:13:58,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:13:58,968 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:13:58,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2022-11-23 15:14:02,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:14:02,404 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:14:02,405 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2022-11-23 15:14:02,424 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/data/ebb5e17c5/48d35e8fa87a423d8ea47bd3b2f20bf7/FLAGb63d40863 [2022-11-23 15:14:02,439 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/data/ebb5e17c5/48d35e8fa87a423d8ea47bd3b2f20bf7 [2022-11-23 15:14:02,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:14:02,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:14:02,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:14:02,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:14:02,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:14:02,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:02" (1/1) ... [2022-11-23 15:14:02,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c51091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:02, skipping insertion in model container [2022-11-23 15:14:02,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:02" (1/1) ... [2022-11-23 15:14:02,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:14:02,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:14:02,970 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_71a0bb3d-4856-4da5-b506-83526376065f/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2022-11-23 15:14:03,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:14:03,079 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:14:03,153 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_71a0bb3d-4856-4da5-b506-83526376065f/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2022-11-23 15:14:03,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:14:03,218 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:14:03,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03 WrapperNode [2022-11-23 15:14:03,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:14:03,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:14:03,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:14:03,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:14:03,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,315 INFO L138 Inliner]: procedures = 128, calls = 209, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 861 [2022-11-23 15:14:03,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:14:03,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:14:03,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:14:03,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:14:03,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:14:03,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:14:03,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:14:03,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:14:03,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (1/1) ... [2022-11-23 15:14:03,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:14:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:14:03,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:14:03,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:14:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 15:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 15:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 15:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 15:14:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 15:14:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 15:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 15:14:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 15:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 15:14:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 15:14:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 15:14:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 15:14:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 15:14:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 15:14:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 15:14:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 15:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 15:14:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 15:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 15:14:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 15:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 15:14:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 15:14:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 15:14:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 15:14:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 15:14:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:14:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 15:14:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 15:14:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 15:14:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 15:14:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 15:14:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 15:14:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 15:14:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 15:14:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 15:14:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 15:14:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-23 15:14:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-23 15:14:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 15:14:03,511 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 15:14:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 15:14:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 15:14:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 15:14:03,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 15:14:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 15:14:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 15:14:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:14:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 15:14:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 15:14:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:14:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:14:03,834 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:14:03,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:14:04,779 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:14:05,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:14:05,295 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:14:05,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:05 BoogieIcfgContainer [2022-11-23 15:14:05,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:14:05,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:14:05,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:14:05,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:14:05,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:14:02" (1/3) ... [2022-11-23 15:14:05,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5d1c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:05, skipping insertion in model container [2022-11-23 15:14:05,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:03" (2/3) ... [2022-11-23 15:14:05,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5d1c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:05, skipping insertion in model container [2022-11-23 15:14:05,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:05" (3/3) ... [2022-11-23 15:14:05,311 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2022-11-23 15:14:05,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:14:05,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:14:05,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:14:05,421 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;@18dad494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:14:05,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:14:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 112 states have internal predecessors, (144), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-23 15:14:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:14:05,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:05,446 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] [2022-11-23 15:14:05,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:14:05,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -988609598, now seen corresponding path program 1 times [2022-11-23 15:14:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:05,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299461699] [2022-11-23 15:14:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:05,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:05,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299461699] [2022-11-23 15:14:05,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299461699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:05,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:05,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:14:05,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110085040] [2022-11-23 15:14:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:05,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:14:05,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:14:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:14:06,034 INFO L87 Difference]: Start difference. First operand has 184 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 112 states have internal predecessors, (144), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2022-11-23 15:14:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:06,237 INFO L93 Difference]: Finished difference Result 285 states and 370 transitions. [2022-11-23 15:14:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:14:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 89 [2022-11-23 15:14:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:06,256 INFO L225 Difference]: With dead ends: 285 [2022-11-23 15:14:06,256 INFO L226 Difference]: Without dead ends: 181 [2022-11-23 15:14:06,261 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 [2022-11-23 15:14:06,267 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:06,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:14:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-23 15:14:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-23 15:14:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-23 15:14:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2022-11-23 15:14:06,361 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 239 transitions. Word has length 89 [2022-11-23 15:14:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:06,363 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 239 transitions. [2022-11-23 15:14:06,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2022-11-23 15:14:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 239 transitions. [2022-11-23 15:14:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 15:14:06,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:06,385 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] [2022-11-23 15:14:06,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:14:06,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:14:06,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:06,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1945105561, now seen corresponding path program 1 times [2022-11-23 15:14:06,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:06,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513993245] [2022-11-23 15:14:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:06,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:06,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:06,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513993245] [2022-11-23 15:14:06,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513993245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:06,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:06,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:14:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823151905] [2022-11-23 15:14:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:06,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:14:06,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:06,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:14:06,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:14:06,736 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-23 15:14:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:06,865 INFO L93 Difference]: Finished difference Result 281 states and 358 transitions. [2022-11-23 15:14:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:14:06,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 90 [2022-11-23 15:14:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:06,870 INFO L225 Difference]: With dead ends: 281 [2022-11-23 15:14:06,871 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 15:14:06,879 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 [2022-11-23 15:14:06,882 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:06,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:14:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 15:14:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-23 15:14:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 111 states have internal predecessors, (140), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-23 15:14:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-11-23 15:14:06,907 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 241 transitions. Word has length 90 [2022-11-23 15:14:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:06,908 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-11-23 15:14:06,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-23 15:14:06,908 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 241 transitions. [2022-11-23 15:14:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-23 15:14:06,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:06,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:14:06,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:14:06,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:14:06,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1064711004, now seen corresponding path program 1 times [2022-11-23 15:14:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:06,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950097691] [2022-11-23 15:14:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:07,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:07,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950097691] [2022-11-23 15:14:07,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950097691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:07,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:07,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:14:07,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998769517] [2022-11-23 15:14:07,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:07,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:14:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:14:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:14:07,120 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-11-23 15:14:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:07,254 INFO L93 Difference]: Finished difference Result 396 states and 541 transitions. [2022-11-23 15:14:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:14:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 95 [2022-11-23 15:14:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:07,257 INFO L225 Difference]: With dead ends: 396 [2022-11-23 15:14:07,257 INFO L226 Difference]: Without dead ends: 231 [2022-11-23 15:14:07,259 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 [2022-11-23 15:14:07,260 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:07,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 431 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:14:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-23 15:14:07,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 226. [2022-11-23 15:14:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 140 states have (on average 1.3785714285714286) internal successors, (193), 143 states have internal predecessors, (193), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-23 15:14:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 316 transitions. [2022-11-23 15:14:07,282 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 316 transitions. Word has length 95 [2022-11-23 15:14:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:07,283 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 316 transitions. [2022-11-23 15:14:07,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-11-23 15:14:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 316 transitions. [2022-11-23 15:14:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-23 15:14:07,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:07,286 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:14:07,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:14:07,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:14:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:07,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1276490101, now seen corresponding path program 1 times [2022-11-23 15:14:07,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:07,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231873035] [2022-11-23 15:14:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:07,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:07,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231873035] [2022-11-23 15:14:07,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231873035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:14:07,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410995519] [2022-11-23 15:14:07,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:07,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:14:07,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:14:07,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:14:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:14:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:07,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:14:07,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:14:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:07,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:14:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:14:08,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410995519] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:14:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [242398600] [2022-11-23 15:14:08,118 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-11-23 15:14:08,122 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:14:08,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:14:08,133 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:14:08,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:14:44,885 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 15:14:45,187 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-11-23 15:14:58,676 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 15:14:58,967 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-23 15:15:38,318 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs [2022-11-23 15:15:39,009 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-11-23 15:15:39,060 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 444 for LOIs [2022-11-23 15:15:39,319 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-11-23 15:15:39,385 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-11-23 15:15:39,428 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-11-23 15:15:40,159 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 247 for LOIs [2022-11-23 15:15:40,212 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:15:58,562 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:16:36,153 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 566 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:16:41,864 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 568 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:16:47,593 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 569 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:16:53,318 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 567 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:16:59,145 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 571 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:17:04,884 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 567 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:17:25,721 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 530 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:17:32,631 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 569 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:18:29,356 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 581 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:18:38,137 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 589 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:19:01,465 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 443 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:19:21,707 WARN L233 SmtUtils]: Spent 14.64s on a formula simplification. DAG size of input: 640 DAG size of output: 509 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:19:31,512 WARN L233 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 637 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:19:55,263 WARN L233 SmtUtils]: Spent 9.19s on a formula simplification. DAG size of input: 673 DAG size of output: 473 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:19:58,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [242398600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:19:58,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:19:58,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [4, 4, 4] total 69 [2022-11-23 15:19:58,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486663198] [2022-11-23 15:19:58,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:19:58,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-23 15:19:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:19:58,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-23 15:19:58,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=4452, Unknown=0, NotChecked=0, Total=4692 [2022-11-23 15:19:58,806 INFO L87 Difference]: Start difference. First operand 226 states and 316 transitions. Second operand has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 40 states have internal predecessors, (49), 19 states have call successors, (20), 12 states have call predecessors, (20), 10 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-23 15:21:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:04,380 INFO L93 Difference]: Finished difference Result 643 states and 949 transitions. [2022-11-23 15:21:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-23 15:21:04,381 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 40 states have internal predecessors, (49), 19 states have call successors, (20), 12 states have call predecessors, (20), 10 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 96 [2022-11-23 15:21:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:04,385 INFO L225 Difference]: With dead ends: 643 [2022-11-23 15:21:04,386 INFO L226 Difference]: Without dead ends: 435 [2022-11-23 15:21:04,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 221 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 282.3s TimeCoverageRelationStatistics Valid=303, Invalid=5703, Unknown=0, NotChecked=0, Total=6006 [2022-11-23 15:21:04,390 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 298 mSDsluCounter, 7132 mSDsCounter, 0 mSdLazyCounter, 9465 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 7412 SdHoareTripleChecker+Invalid, 9511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 9465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:04,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 7412 Invalid, 9511 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [46 Valid, 9465 Invalid, 0 Unknown, 0 Unchecked, 40.8s Time] [2022-11-23 15:21:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-23 15:21:04,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 352. [2022-11-23 15:21:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 235 states have (on average 1.4085106382978723) internal successors, (331), 239 states have internal predecessors, (331), 84 states have call successors, (84), 33 states have call predecessors, (84), 32 states have return successors, (84), 81 states have call predecessors, (84), 83 states have call successors, (84) [2022-11-23 15:21:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 499 transitions. [2022-11-23 15:21:04,629 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 499 transitions. Word has length 96 [2022-11-23 15:21:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:04,630 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 499 transitions. [2022-11-23 15:21:04,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 40 states have internal predecessors, (49), 19 states have call successors, (20), 12 states have call predecessors, (20), 10 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-23 15:21:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 499 transitions. [2022-11-23 15:21:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 15:21:04,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:04,640 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:04,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:04,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:04,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2145474438, now seen corresponding path program 1 times [2022-11-23 15:21:04,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:04,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878446473] [2022-11-23 15:21:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:04,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 15:21:04,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:04,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878446473] [2022-11-23 15:21:04,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878446473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:04,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:04,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:04,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941381236] [2022-11-23 15:21:04,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:04,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:04,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:04,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:04,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:04,978 INFO L87 Difference]: Start difference. First operand 352 states and 499 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 15:21:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:05,376 INFO L93 Difference]: Finished difference Result 818 states and 1204 transitions. [2022-11-23 15:21:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-11-23 15:21:05,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:05,390 INFO L225 Difference]: With dead ends: 818 [2022-11-23 15:21:05,390 INFO L226 Difference]: Without dead ends: 492 [2022-11-23 15:21:05,391 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 [2022-11-23 15:21:05,392 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 55 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:05,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 442 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:21:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-23 15:21:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 485. [2022-11-23 15:21:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 343 states have (on average 1.4810495626822158) internal successors, (508), 347 states have internal predecessors, (508), 109 states have call successors, (109), 33 states have call predecessors, (109), 32 states have return successors, (109), 106 states have call predecessors, (109), 108 states have call successors, (109) [2022-11-23 15:21:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 726 transitions. [2022-11-23 15:21:05,620 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 726 transitions. Word has length 101 [2022-11-23 15:21:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:05,621 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 726 transitions. [2022-11-23 15:21:05,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 15:21:05,621 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 726 transitions. [2022-11-23 15:21:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 15:21:05,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:05,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:21:05,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:05,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:05,626 INFO L85 PathProgramCache]: Analyzing trace with hash 975923164, now seen corresponding path program 1 times [2022-11-23 15:21:05,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:05,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119457161] [2022-11-23 15:21:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:21:05,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:05,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119457161] [2022-11-23 15:21:05,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119457161] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:05,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118632059] [2022-11-23 15:21:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:05,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:05,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:05,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:05,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71a0bb3d-4856-4da5-b506-83526376065f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:21:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:06,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:21:06,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:21:06,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:21:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:21:06,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118632059] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:21:06,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037406784] [2022-11-23 15:21:06,322 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-23 15:21:06,322 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:21:06,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:21:06,324 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:21:06,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:21:38,406 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 15:21:38,703 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-11-23 15:21:51,296 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 15:21:51,580 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-23 15:22:58,481 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs [2022-11-23 15:22:59,247 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-11-23 15:22:59,292 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 444 for LOIs [2022-11-23 15:22:59,585 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-11-23 15:22:59,657 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-11-23 15:22:59,698 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-11-23 15:23:00,480 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 439 for LOIs [2022-11-23 15:23:00,729 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 247 for LOIs [2022-11-23 15:23:00,771 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:18,792 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:23:56,129 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 566 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:01,810 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 568 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:07,505 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 569 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:13,203 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 567 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:18,974 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 571 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:24,665 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 567 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:45,591 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 530 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:51,115 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 566 DAG size of output: 302 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:25:47,684 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 581 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:25:56,306 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 589 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:18,750 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 443 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:38,923 WARN L233 SmtUtils]: Spent 14.61s on a formula simplification. DAG size of input: 640 DAG size of output: 509 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:48,841 WARN L233 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 637 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:08,366 WARN L233 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 643 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:17,203 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 643 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:27,354 WARN L233 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 641 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:38,117 WARN L233 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 669 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:44,094 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 439 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)