./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI --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 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f --- 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-5e519f3 [2022-11-03 03:36:34,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:36:34,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:36:34,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:36:34,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:36:34,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:36:34,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:36:34,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:36:34,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:36:34,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:36:34,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:36:34,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:36:34,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:36:34,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:36:34,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:36:34,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:36:34,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:36:34,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:36:34,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:36:34,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:36:34,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:36:34,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:36:34,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:36:34,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:36:34,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:36:34,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:36:34,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:36:34,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:36:34,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:36:34,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:36:34,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:36:34,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:36:34,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:36:34,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:36:34,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:36:34,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:36:34,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:36:34,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:36:34,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:36:34,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:36:34,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:36:34,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:36:34,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:36:34,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:36:34,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:36:34,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:36:34,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:36:34,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:36:34,656 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:36:34,656 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:36:34,656 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:36:34,657 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:36:34,658 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:36:34,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:36:34,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:36:34,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:36:34,659 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:36:34,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:36:34,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:36:34,660 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:36:34,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:36:34,661 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:36:34,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:36:34,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:36:34,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:36:34,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:36:34,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:36:34,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:36:34,663 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:36:34,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:36:34,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:36:34,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:36:34,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:36:34,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:36:34,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:36:34,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:36:34,666 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:36:34,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:36:34,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:36:34,667 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:36:34,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:36:34,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:36:34,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:36:34,668 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_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f [2022-11-03 03:36:35,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:36:35,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:36:35,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:36:35,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:36:35,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:36:35,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-03 03:36:35,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/data/357cc826c/05a690b3f53c4f47914bec769f07abd2/FLAGbeacd1be6 [2022-11-03 03:36:35,958 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:36:35,959 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-03 03:36:35,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/data/357cc826c/05a690b3f53c4f47914bec769f07abd2/FLAGbeacd1be6 [2022-11-03 03:36:36,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/data/357cc826c/05a690b3f53c4f47914bec769f07abd2 [2022-11-03 03:36:36,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:36:36,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:36:36,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:36,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:36:36,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:36:36,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:36" (1/1) ... [2022-11-03 03:36:36,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a8aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:36, skipping insertion in model container [2022-11-03 03:36:36,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:36" (1/1) ... [2022-11-03 03:36:36,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:36:36,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:36:36,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-03 03:36:37,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:37,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:36:37,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-03 03:36:37,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:37,207 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:36:37,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37 WrapperNode [2022-11-03 03:36:37,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:37,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:37,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:36:37,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:36:37,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,344 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1125 [2022-11-03 03:36:37,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:37,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:36:37,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:36:37,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:36:37,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:36:37,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:36:37,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:36:37,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:36:37,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (1/1) ... [2022-11-03 03:36:37,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:36:37,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:37,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:36:37,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:36:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:36:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:36:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:36:37,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:36:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:36:37,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:36:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:36:37,632 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:36:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:36:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:36:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:36:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:36:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:36:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:36:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:36:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:36:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:36:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:36:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:36:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:36:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:36:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 03:36:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 03:36:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:36:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:36:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:36:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:36:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:36:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:36:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:36:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:36:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:36:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:36:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:36:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:36:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:36:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:36:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:36:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:36:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:36:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:36:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:36:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:36:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:36:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:36:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:36:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:36:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:36:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:36:37,971 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:36:37,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:36:39,366 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:36:40,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:36:40,077 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:36:40,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:36:40 BoogieIcfgContainer [2022-11-03 03:36:40,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:36:40,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:36:40,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:36:40,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:36:40,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:36:36" (1/3) ... [2022-11-03 03:36:40,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8fdce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:36:40, skipping insertion in model container [2022-11-03 03:36:40,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:37" (2/3) ... [2022-11-03 03:36:40,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8fdce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:36:40, skipping insertion in model container [2022-11-03 03:36:40,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:36:40" (3/3) ... [2022-11-03 03:36:40,091 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product27.cil.c [2022-11-03 03:36:40,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:36:40,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:36:40,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:36:40,182 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;@4bec76d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:36:40,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:36:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-03 03:36:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 03:36:40,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:40,203 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] [2022-11-03 03:36:40,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:40,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1302163263, now seen corresponding path program 1 times [2022-11-03 03:36:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041237925] [2022-11-03 03:36:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:40,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:40,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041237925] [2022-11-03 03:36:40,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041237925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:40,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:40,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:36:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97592498] [2022-11-03 03:36:40,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:40,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:36:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:36:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:36:40,869 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:41,046 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2022-11-03 03:36:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:36:41,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-03 03:36:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:41,065 INFO L225 Difference]: With dead ends: 290 [2022-11-03 03:36:41,065 INFO L226 Difference]: Without dead ends: 188 [2022-11-03 03:36:41,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:36:41,075 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:41,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:36:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-03 03:36:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-03 03:36:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-03 03:36:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2022-11-03 03:36:41,156 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 67 [2022-11-03 03:36:41,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:41,158 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2022-11-03 03:36:41,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2022-11-03 03:36:41,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 03:36:41,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:41,169 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] [2022-11-03 03:36:41,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:36:41,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:41,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1687111893, now seen corresponding path program 1 times [2022-11-03 03:36:41,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:41,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476824919] [2022-11-03 03:36:41,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:41,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:41,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:41,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476824919] [2022-11-03 03:36:41,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476824919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:41,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:41,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:36:41,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787940484] [2022-11-03 03:36:41,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:41,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:36:41,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:36:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:41,575 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:41,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:41,815 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2022-11-03 03:36:41,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:36:41,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-11-03 03:36:41,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:41,818 INFO L225 Difference]: With dead ends: 286 [2022-11-03 03:36:41,819 INFO L226 Difference]: Without dead ends: 190 [2022-11-03 03:36:41,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:41,822 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:41,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:36:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-03 03:36:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-03 03:36:41,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-03 03:36:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2022-11-03 03:36:41,862 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 68 [2022-11-03 03:36:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:41,863 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2022-11-03 03:36:41,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2022-11-03 03:36:41,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 03:36:41,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:41,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:36:41,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:36:41,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:41,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1635167115, now seen corresponding path program 1 times [2022-11-03 03:36:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:41,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617685389] [2022-11-03 03:36:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:42,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:42,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617685389] [2022-11-03 03:36:42,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617685389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:42,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:42,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:36:42,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692217578] [2022-11-03 03:36:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:42,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:36:42,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:36:42,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:42,139 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:42,364 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2022-11-03 03:36:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:36:42,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-11-03 03:36:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:42,376 INFO L225 Difference]: With dead ends: 415 [2022-11-03 03:36:42,376 INFO L226 Difference]: Without dead ends: 243 [2022-11-03 03:36:42,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:42,387 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 59 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 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 [2022-11-03 03:36:42,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:36:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-03 03:36:42,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2022-11-03 03:36:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-03 03:36:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2022-11-03 03:36:42,437 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 73 [2022-11-03 03:36:42,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:42,438 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2022-11-03 03:36:42,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:36:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2022-11-03 03:36:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 03:36:42,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:42,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:36:42,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:36:42,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1665878613, now seen corresponding path program 1 times [2022-11-03 03:36:42,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:42,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308612413] [2022-11-03 03:36:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:42,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:42,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308612413] [2022-11-03 03:36:42,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308612413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:36:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075255450] [2022-11-03 03:36:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:42,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:36:42,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:42,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:36:42,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:36:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:43,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:36:43,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:36:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:43,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:36:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:43,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075255450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:36:43,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700430138] [2022-11-03 03:36:43,495 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-03 03:36:43,495 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:36:43,504 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:36:43,511 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:36:43,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:37:29,274 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:37:29,704 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:37:30,102 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:38:03,625 WARN L234 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 464 DAG size of output: 271 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:17,969 WARN L234 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 486 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:24,128 WARN L234 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 498 DAG size of output: 299 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:32,195 WARN L234 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 508 DAG size of output: 295 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:51,270 WARN L234 SmtUtils]: Spent 17.42s on a formula simplification. DAG size of input: 589 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:11,649 WARN L234 SmtUtils]: Spent 18.54s on a formula simplification. DAG size of input: 591 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:41,880 WARN L234 SmtUtils]: Spent 28.34s on a formula simplification. DAG size of input: 590 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:12,008 WARN L234 SmtUtils]: Spent 28.12s on a formula simplification. DAG size of input: 588 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:19,592 WARN L234 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 545 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:19,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [700430138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:19,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:40:19,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 03:40:19,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511753913] [2022-11-03 03:40:19,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:19,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 03:40:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:40:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 03:40:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:40:19,622 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-03 03:40:40,448 WARN L234 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 592 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:52,390 WARN L234 SmtUtils]: Spent 11.54s on a formula simplification. DAG size of input: 559 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:02,950 INFO L93 Difference]: Finished difference Result 527 states and 781 transitions. [2022-11-03 03:41:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:41:02,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 74 [2022-11-03 03:41:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:02,955 INFO L225 Difference]: With dead ends: 527 [2022-11-03 03:41:02,956 INFO L226 Difference]: Without dead ends: 307 [2022-11-03 03:41:02,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 200.5s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:41:02,958 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 157 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:02,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2957 Invalid, 1717 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-11-03 03:41:02,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-11-03 03:41:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 266. [2022-11-03 03:41:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 170 states have (on average 1.3705882352941177) internal successors, (233), 172 states have internal predecessors, (233), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-03 03:41:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 376 transitions. [2022-11-03 03:41:03,109 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 376 transitions. Word has length 74 [2022-11-03 03:41:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:03,110 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 376 transitions. [2022-11-03 03:41:03,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-03 03:41:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 376 transitions. [2022-11-03 03:41:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 03:41:03,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:03,114 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:03,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:03,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-03 03:41:03,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1311921407, now seen corresponding path program 1 times [2022-11-03 03:41:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:03,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83694629] [2022-11-03 03:41:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:03,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:41:03,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:03,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83694629] [2022-11-03 03:41:03,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83694629] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:41:03,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710268525] [2022-11-03 03:41:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:03,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:41:03,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:41:03,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:41:03,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:41:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:03,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:41:03,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:41:04,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:41:04,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710268525] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:04,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1283090400] [2022-11-03 03:41:04,106 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-11-03 03:41:04,107 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:41:04,107 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:41:04,108 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:41:04,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:41:58,847 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 03:41:59,215 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-11-03 03:41:59,588 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:42:15,527 WARN L234 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:22,574 WARN L234 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:30,238 WARN L234 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 450 DAG size of output: 245 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:37,403 WARN L234 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 473 DAG size of output: 265 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:43,312 WARN L234 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 464 DAG size of output: 271 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:57,899 WARN L234 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 486 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:04,061 WARN L234 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 498 DAG size of output: 299 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:12,417 WARN L234 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 508 DAG size of output: 295 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:37,097 WARN L234 SmtUtils]: Spent 24.29s on a formula simplification. DAG size of input: 579 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:58,477 WARN L234 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 547 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:06,263 WARN L234 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 549 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:20,249 WARN L234 SmtUtils]: Spent 13.04s on a formula simplification. DAG size of input: 580 DAG size of output: 438 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:20,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1283090400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:20,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:44:20,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 03:44:20,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463358263] [2022-11-03 03:44:20,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:20,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 03:44:20,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:20,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 03:44:20,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:44:20,557 INFO L87 Difference]: Start difference. First operand 266 states and 376 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-03 03:44:44,619 WARN L234 SmtUtils]: Spent 22.15s on a formula simplification. DAG size of input: 541 DAG size of output: 414 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:15,954 WARN L234 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 566 DAG size of output: 395 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:26,998 INFO L93 Difference]: Finished difference Result 570 states and 839 transitions. [2022-11-03 03:45:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 03:45:27,000 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 80 [2022-11-03 03:45:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:27,009 INFO L225 Difference]: With dead ends: 570 [2022-11-03 03:45:27,010 INFO L226 Difference]: Without dead ends: 350 [2022-11-03 03:45:27,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 212 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 196.3s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 03:45:27,013 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 172 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:27,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 3054 Invalid, 2041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 03:45:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-03 03:45:27,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 280. [2022-11-03 03:45:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 182 states have (on average 1.3736263736263736) internal successors, (250), 184 states have internal predecessors, (250), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-03 03:45:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 395 transitions. [2022-11-03 03:45:27,256 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 395 transitions. Word has length 80 [2022-11-03 03:45:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:27,256 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 395 transitions. [2022-11-03 03:45:27,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-03 03:45:27,257 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 395 transitions. [2022-11-03 03:45:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 03:45:27,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:27,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:27,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:27,470 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1657192171, now seen corresponding path program 1 times [2022-11-03 03:45:27,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:27,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368199867] [2022-11-03 03:45:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:45:27,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:27,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368199867] [2022-11-03 03:45:27,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368199867] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:45:27,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442719330] [2022-11-03 03:45:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:27,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:27,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:45:27,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:45:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:28,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:45:28,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:45:28,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:45:28,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442719330] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:28,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1485765228] [2022-11-03 03:45:28,209 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-11-03 03:45:28,209 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:45:28,210 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:45:28,210 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:45:28,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:46:22,138 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 03:46:22,493 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-03 03:46:22,569 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 452 for LOIs [2022-11-03 03:46:22,969 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 449 for LOIs [2022-11-03 03:46:23,373 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:46:23,719 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:46:39,577 WARN L234 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:46,620 WARN L234 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:01,367 WARN L234 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 464 DAG size of output: 271 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:14,777 WARN L234 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 486 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:20,375 WARN L234 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 498 DAG size of output: 299 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:27,978 WARN L234 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 508 DAG size of output: 295 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:48,864 WARN L234 SmtUtils]: Spent 20.42s on a formula simplification. DAG size of input: 619 DAG size of output: 502 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:16,395 WARN L234 SmtUtils]: Spent 10.29s on a formula simplification. DAG size of input: 560 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:29,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1485765228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:29,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:48:29,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-03 03:48:29,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933727582] [2022-11-03 03:48:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:29,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 03:48:29,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:29,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 03:48:29,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 03:48:29,476 INFO L87 Difference]: Start difference. First operand 280 states and 395 transitions. Second operand has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-03 03:48:40,437 WARN L234 SmtUtils]: Spent 8.90s on a formula simplification. DAG size of input: 594 DAG size of output: 421 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:57,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:57,145 INFO L93 Difference]: Finished difference Result 592 states and 871 transitions. [2022-11-03 03:48:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 03:48:57,147 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 83 [2022-11-03 03:48:57,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:57,150 INFO L225 Difference]: With dead ends: 592 [2022-11-03 03:48:57,150 INFO L226 Difference]: Without dead ends: 372 [2022-11-03 03:48:57,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 138.0s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:48:57,152 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 129 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:57,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 3549 Invalid, 3169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-11-03 03:48:57,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-03 03:48:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 316. [2022-11-03 03:48:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 214 states have internal predecessors, (292), 76 states have call successors, (76), 27 states have call predecessors, (76), 27 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 03:48:57,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2022-11-03 03:48:57,383 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 83 [2022-11-03 03:48:57,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:57,384 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2022-11-03 03:48:57,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-03 03:48:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2022-11-03 03:48:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 03:48:57,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:57,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:57,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:48:57,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:57,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:57,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash 316820286, now seen corresponding path program 1 times [2022-11-03 03:48:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:57,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246106955] [2022-11-03 03:48:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:48:57,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:57,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246106955] [2022-11-03 03:48:57,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246106955] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:57,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474317753] [2022-11-03 03:48:57,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:57,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:57,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:57,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:57,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f039a660-dfb6-489e-afc1-98d597bf3cce/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:48:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:58,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:48:58,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:48:58,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:48:58,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474317753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:58,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1386812540] [2022-11-03 03:48:58,296 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-03 03:48:58,296 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:48:58,297 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:48:58,297 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:48:58,298 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs