./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/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_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/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_f631b1cf-688b-4296-9875-90a470d18390/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 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 --- 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 11:21:46,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:21:46,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:21:46,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:21:46,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:21:46,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:21:46,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:21:46,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:21:46,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:21:46,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:21:46,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:21:46,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:21:46,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:21:46,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:21:46,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:21:46,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:21:46,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:21:46,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:21:46,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:21:46,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:21:46,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:21:46,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:21:46,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:21:46,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:21:46,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:21:46,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:21:46,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:21:46,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:21:46,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:21:46,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:21:46,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:21:46,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:21:46,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:21:46,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:21:46,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:21:46,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:21:46,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:21:46,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:21:46,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:21:46,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:21:46,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:21:46,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:21:46,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:21:46,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:21:46,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:21:46,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:21:46,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:21:46,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:21:46,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:21:46,402 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:21:46,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:21:46,403 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:21:46,403 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:21:46,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:21:46,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:21:46,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:21:46,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:21:46,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:21:46,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:21:46,406 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:21:46,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:21:46,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:21:46,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:21:46,406 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_f631b1cf-688b-4296-9875-90a470d18390/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 [2022-12-14 11:21:46,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:21:46,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:21:46,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:21:46,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:21:46,609 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:21:46,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2022-12-14 11:21:49,205 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:21:49,473 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:21:49,473 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2022-12-14 11:21:49,487 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/data/0b4b6584b/55cb9c9bef4948a5b783e6a9b32869d8/FLAGcabb9a5aa [2022-12-14 11:21:49,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/data/0b4b6584b/55cb9c9bef4948a5b783e6a9b32869d8 [2022-12-14 11:21:49,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:21:49,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:21:49,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:21:49,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:21:49,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:21:49,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:21:49" (1/1) ... [2022-12-14 11:21:49,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1495b06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:49, skipping insertion in model container [2022-12-14 11:21:49,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:21:49" (1/1) ... [2022-12-14 11:21:49,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:21:49,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:21:50,031 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_f631b1cf-688b-4296-9875-90a470d18390/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2022-12-14 11:21:50,136 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,139 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,169 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,170 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,173 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,189 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,193 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,205 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,206 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:21:50,238 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:21:50,281 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_f631b1cf-688b-4296-9875-90a470d18390/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2022-12-14 11:21:50,315 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,316 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,322 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,324 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,326 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,332 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,334 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,340 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,341 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:21:50,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:21:50,378 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:21:50,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50 WrapperNode [2022-12-14 11:21:50,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:21:50,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:21:50,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:21:50,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:21:50,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,461 INFO L138 Inliner]: procedures = 135, calls = 233, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1084 [2022-12-14 11:21:50,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:21:50,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:21:50,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:21:50,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:21:50,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,512 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:21:50,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:21:50,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:21:50,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:21:50,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (1/1) ... [2022-12-14 11:21:50,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:21:50,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:21:50,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:21:50,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:21:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 11:21:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 11:21:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 11:21:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 11:21:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 11:21:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 11:21:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:21:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:21:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:21:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:21:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 11:21:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 11:21:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:21:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:21:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 11:21:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 11:21:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 11:21:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 11:21:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:21:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:21:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:21:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:21:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:21:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 11:21:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 11:21:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:21:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:21:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:21:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 11:21:50,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 11:21:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 11:21:50,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 11:21:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:21:50,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:21:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:21:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:21:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:21:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:21:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 11:21:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 11:21:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:21:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:21:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 11:21:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 11:21:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:21:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:21:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:21:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:21:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:21:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:21:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:21:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:21:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:21:50,772 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:21:50,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:21:51,322 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:21:51,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:21:51,626 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:21:51,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:21:51 BoogieIcfgContainer [2022-12-14 11:21:51,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:21:51,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:21:51,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:21:51,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:21:51,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:21:49" (1/3) ... [2022-12-14 11:21:51,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e60128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:21:51, skipping insertion in model container [2022-12-14 11:21:51,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:21:50" (2/3) ... [2022-12-14 11:21:51,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e60128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:21:51, skipping insertion in model container [2022-12-14 11:21:51,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:21:51" (3/3) ... [2022-12-14 11:21:51,635 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product33.cil.c [2022-12-14 11:21:51,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:21:51,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:21:51,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:21:51,701 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;@5974ba9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:21:51,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:21:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 11:21:51,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 11:21:51,716 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:51,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:21:51,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:51,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash -488605368, now seen corresponding path program 1 times [2022-12-14 11:21:51,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:51,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089078446] [2022-12-14 11:21:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:51,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:51,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:51,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089078446] [2022-12-14 11:21:51,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089078446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:51,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:51,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:21:51,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579824047] [2022-12-14 11:21:51,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:51,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:21:51,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:21:51,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:21:51,973 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:52,081 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2022-12-14 11:21:52,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:21:52,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 11:21:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:52,090 INFO L225 Difference]: With dead ends: 341 [2022-12-14 11:21:52,090 INFO L226 Difference]: Without dead ends: 209 [2022-12-14 11:21:52,094 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 11:21:52,096 INFO L413 NwaCegarLoop]: 243 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, 243 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 11:21:52,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:21:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-14 11:21:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-12-14 11:21:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:21:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-12-14 11:21:52,144 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2022-12-14 11:21:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:52,145 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-12-14 11:21:52,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-12-14 11:21:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 11:21:52,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:52,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:21:52,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:21:52,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:52,149 INFO L85 PathProgramCache]: Analyzing trace with hash 799572744, now seen corresponding path program 1 times [2022-12-14 11:21:52,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:52,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824847674] [2022-12-14 11:21:52,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:52,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:52,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:52,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824847674] [2022-12-14 11:21:52,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824847674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:52,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:52,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:21:52,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362201302] [2022-12-14 11:21:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:52,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:21:52,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:21:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:21:52,346 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:52,457 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2022-12-14 11:21:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:21:52,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 11:21:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:52,459 INFO L225 Difference]: With dead ends: 337 [2022-12-14 11:21:52,459 INFO L226 Difference]: Without dead ends: 211 [2022-12-14 11:21:52,460 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 11:21:52,461 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 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 11:21:52,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:21:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-14 11:21:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-12-14 11:21:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:21:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-12-14 11:21:52,474 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2022-12-14 11:21:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:52,475 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-12-14 11:21:52,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-12-14 11:21:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 11:21:52,476 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:52,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:21:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:21:52,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1045510978, now seen corresponding path program 1 times [2022-12-14 11:21:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:52,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699883521] [2022-12-14 11:21:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:52,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:52,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699883521] [2022-12-14 11:21:52,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699883521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:52,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:52,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:21:52,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997101784] [2022-12-14 11:21:52,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:52,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:21:52,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:52,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:21:52,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:21:52,564 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:52,689 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2022-12-14 11:21:52,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:21:52,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 11:21:52,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:52,692 INFO L225 Difference]: With dead ends: 452 [2022-12-14 11:21:52,692 INFO L226 Difference]: Without dead ends: 259 [2022-12-14 11:21:52,694 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 11:21:52,695 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 57 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:52,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 492 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:21:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-12-14 11:21:52,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2022-12-14 11:21:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 11:21:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2022-12-14 11:21:52,725 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2022-12-14 11:21:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:52,725 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2022-12-14 11:21:52,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:21:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2022-12-14 11:21:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 11:21:52,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:52,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:21:52,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:21:52,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1346144117, now seen corresponding path program 1 times [2022-12-14 11:21:52,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:52,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340316301] [2022-12-14 11:21:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:52,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:52,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:52,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340316301] [2022-12-14 11:21:52,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340316301] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:21:52,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141771420] [2022-12-14 11:21:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:52,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:21:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:21:52,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:21:52,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:21:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:53,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:21:53,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:21:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:53,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:21:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:21:53,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141771420] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:21:53,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975384982] [2022-12-14 11:21:53,231 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 11:21:53,231 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:21:53,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:21:53,238 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:21:53,238 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:22:25,505 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:22:25,797 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:22:26,096 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs [2022-12-14 11:23:01,727 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 11:23:02,013 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 481 for LOIs [2022-12-14 11:23:13,014 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 11:23:13,282 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 11:23:13,354 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-12-14 11:23:13,398 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-12-14 11:23:14,008 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:24:01,320 WARN L233 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:24:13,239 WARN L233 SmtUtils]: Spent 11.65s on a formula simplification. DAG size of input: 596 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:24:25,308 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 587 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:25:20,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [975384982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:20,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:25:20,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 11:25:20,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549679630] [2022-12-14 11:25:20,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:20,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 11:25:20,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:20,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 11:25:20,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2621, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 11:25:20,087 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:25:27,825 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 561 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:25:33,710 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 563 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:25:40,545 WARN L233 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 595 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:25:47,045 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 593 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:25:52,745 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 595 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:26:05,387 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 595 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:26:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:34,353 INFO L93 Difference]: Finished difference Result 653 states and 980 transitions. [2022-12-14 11:26:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 11:26:34,354 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 11:26:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:34,356 INFO L225 Difference]: With dead ends: 653 [2022-12-14 11:26:34,356 INFO L226 Difference]: Without dead ends: 417 [2022-12-14 11:26:34,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 178.4s TimeCoverageRelationStatistics Valid=226, Invalid=3934, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 11:26:34,358 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 232 mSDsluCounter, 6509 mSDsCounter, 0 mSdLazyCounter, 6467 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 6773 SdHoareTripleChecker+Invalid, 6496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:34,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 6773 Invalid, 6496 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 6467 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2022-12-14 11:26:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-12-14 11:26:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 311. [2022-12-14 11:26:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 198 states have (on average 1.3434343434343434) internal successors, (266), 201 states have internal predecessors, (266), 82 states have call successors, (82), 32 states have call predecessors, (82), 30 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2022-12-14 11:26:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 429 transitions. [2022-12-14 11:26:34,647 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 429 transitions. Word has length 71 [2022-12-14 11:26:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:34,647 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 429 transitions. [2022-12-14 11:26:34,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:26:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 429 transitions. [2022-12-14 11:26:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 11:26:34,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:34,652 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-12-14 11:26:34,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:26:34,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:26:34,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:26:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash 303396156, now seen corresponding path program 1 times [2022-12-14 11:26:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:34,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969519602] [2022-12-14 11:26:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:26:34,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969519602] [2022-12-14 11:26:34,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969519602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:26:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175678807] [2022-12-14 11:26:34,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:34,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:26:34,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:26:34,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:26:34,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:26:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:35,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:26:35,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:26:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:26:35,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:26:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:26:35,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175678807] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:26:35,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1225961555] [2022-12-14 11:26:35,235 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 11:26:35,236 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:26:35,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:26:35,236 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:26:35,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:27:11,784 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:27:12,077 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 11:27:12,361 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:28:00,550 WARN L233 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 589 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:28:14,317 WARN L233 SmtUtils]: Spent 13.46s on a formula simplification. DAG size of input: 591 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:28:20,054 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 572 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:28:37,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1225961555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:37,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:28:37,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:28:37,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747146073] [2022-12-14 11:28:37,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:37,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:28:37,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:28:37,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:28:37,473 INFO L87 Difference]: Start difference. First operand 311 states and 429 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 11:28:50,200 WARN L233 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 554 DAG size of output: 454 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:29:00,228 WARN L233 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 554 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:29:19,369 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 588 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:29:25,784 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 590 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:29:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:33,731 INFO L93 Difference]: Finished difference Result 673 states and 992 transitions. [2022-12-14 11:29:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 11:29:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-12-14 11:29:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:33,734 INFO L225 Difference]: With dead ends: 673 [2022-12-14 11:29:33,734 INFO L226 Difference]: Without dead ends: 437 [2022-12-14 11:29:33,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 131.5s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 11:29:33,736 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 203 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:33,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 4248 Invalid, 2569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-12-14 11:29:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-12-14 11:29:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 355. [2022-12-14 11:29:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 239 states have (on average 1.397489539748954) internal successors, (334), 243 states have internal predecessors, (334), 84 states have call successors, (84), 33 states have call predecessors, (84), 31 states have return successors, (83), 80 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 11:29:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 501 transitions. [2022-12-14 11:29:33,940 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 501 transitions. Word has length 77 [2022-12-14 11:29:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:33,941 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 501 transitions. [2022-12-14 11:29:33,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 11:29:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 501 transitions. [2022-12-14 11:29:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 11:29:33,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:33,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:29:33,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:29:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:29:34,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:29:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1350219213, now seen corresponding path program 1 times [2022-12-14 11:29:34,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:34,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207996748] [2022-12-14 11:29:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:34,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:29:34,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207996748] [2022-12-14 11:29:34,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207996748] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:29:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163103053] [2022-12-14 11:29:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:34,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:29:34,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:29:34,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:29:34,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:29:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:34,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:29:34,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:29:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:29:34,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:29:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:29:34,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163103053] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:29:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [819958076] [2022-12-14 11:29:34,536 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 11:29:34,536 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:29:34,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:29:34,537 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:29:34,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:30:12,955 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:30:13,242 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 11:30:13,304 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-12-14 11:30:13,367 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-12-14 11:30:13,698 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:30:13,996 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:30:55,828 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 636 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:31:06,840 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 638 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:31:23,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [819958076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:23,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:31:23,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 11:31:23,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450480765] [2022-12-14 11:31:23,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:23,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 11:31:23,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:23,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 11:31:23,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:31:23,535 INFO L87 Difference]: Start difference. First operand 355 states and 501 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 11:31:32,500 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 609 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:31:44,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:44,848 INFO L93 Difference]: Finished difference Result 704 states and 1041 transitions. [2022-12-14 11:31:44,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:31:44,849 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-12-14 11:31:44,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:44,851 INFO L225 Difference]: With dead ends: 704 [2022-12-14 11:31:44,851 INFO L226 Difference]: Without dead ends: 468 [2022-12-14 11:31:44,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 77.1s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:31:44,852 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 107 mSDsluCounter, 4375 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 3950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:44,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4632 Invalid, 3950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3939 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 11:31:44,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-12-14 11:31:45,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 422. [2022-12-14 11:31:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 299 states have (on average 1.431438127090301) internal successors, (428), 304 states have internal predecessors, (428), 88 states have call successors, (88), 36 states have call predecessors, (88), 34 states have return successors, (87), 83 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 11:31:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 603 transitions. [2022-12-14 11:31:45,149 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 603 transitions. Word has length 80 [2022-12-14 11:31:45,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:45,150 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 603 transitions. [2022-12-14 11:31:45,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 11:31:45,150 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 603 transitions. [2022-12-14 11:31:45,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:31:45,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:45,151 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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 11:31:45,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:31:45,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:31:45,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:31:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1530070584, now seen corresponding path program 1 times [2022-12-14 11:31:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:45,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298218875] [2022-12-14 11:31:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:45,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:31:45,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298218875] [2022-12-14 11:31:45,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298218875] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:31:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234244976] [2022-12-14 11:31:45,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:45,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:31:45,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:31:45,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:31:45,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f631b1cf-688b-4296-9875-90a470d18390/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:31:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:45,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:31:45,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:31:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:31:45,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:31:45,735 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:31:45,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234244976] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:31:45,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [228414073] [2022-12-14 11:31:45,739 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 11:31:45,739 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:31:45,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:31:45,739 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:31:45,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:32:27,370 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:32:27,655 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:32:27,943 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs [2022-12-14 11:33:02,864 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 11:33:03,151 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 481 for LOIs [2022-12-14 11:33:23,025 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 11:33:23,298 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 11:33:23,369 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-12-14 11:33:23,414 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-12-14 11:33:24,001 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:34:06,322 WARN L233 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 609 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:13,184 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 611 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:31,596 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 572 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)