./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V --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 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:36:43,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:36:43,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:36:43,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:36:43,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:36:43,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:36:43,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:36:43,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:36:43,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:36:43,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:36:43,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:36:43,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:36:43,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:36:43,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:36:43,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:36:43,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:36:43,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:36:43,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:36:43,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:36:43,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:36:43,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:36:43,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:36:43,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:36:43,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:36:43,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:36:43,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:36:43,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:36:43,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:36:43,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:36:43,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:36:43,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:36:43,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:36:43,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:36:43,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:36:43,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:36:43,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:36:43,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:36:43,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:36:43,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:36:43,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:36:43,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:36:43,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:36:43,344 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:36:43,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:36:43,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:36:43,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:36:43,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:36:43,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:36:43,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:36:43,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:36:43,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:36:43,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:36:43,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:36:43,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:36:43,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:36:43,356 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:36:43,356 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:36:43,357 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:36:43,357 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:36:43,357 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:36:43,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:36:43,359 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:36:43,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:36:43,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:36:43,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:36:43,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:36:43,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:36:43,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:36:43,362 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:36:43,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:36:43,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:36:43,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:36:43,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:36:43,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:36:43,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:36:43,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:36:43,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:36:43,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:36:43,367 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:36:43,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:36:43,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:36:43,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:36:43,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:36:43,369 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 [2021-11-23 03:36:43,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:36:43,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:36:43,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:36:43,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:36:43,707 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:36:43,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2021-11-23 03:36:43,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778/FLAG093d5ddb6 [2021-11-23 03:36:44,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:36:44,446 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2021-11-23 03:36:44,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778/FLAG093d5ddb6 [2021-11-23 03:36:44,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778 [2021-11-23 03:36:44,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:36:44,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:36:44,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:36:44,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:36:44,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:36:44,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:44" (1/1) ... [2021-11-23 03:36:44,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2350ebf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:44, skipping insertion in model container [2021-11-23 03:36:44,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:44" (1/1) ... [2021-11-23 03:36:44,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:36:44,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:36:45,027 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2021-11-23 03:36:45,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:36:45,473 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:36:45,486 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2021-11-23 03:36:45,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:36:45,683 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:36:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45 WrapperNode [2021-11-23 03:36:45,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:36:45,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:36:45,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:36:45,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:36:45,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,835 INFO L137 Inliner]: procedures = 134, calls = 229, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1062 [2021-11-23 03:36:45,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:36:45,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:36:45,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:36:45,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:36:45,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:36:45,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:36:45,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:36:45,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:36:45,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ... [2021-11-23 03:36:45,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:36:45,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:45,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:36:45,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:36:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 03:36:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 03:36:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 03:36:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 03:36:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 03:36:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 03:36:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 03:36:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 03:36:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 03:36:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 03:36:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 03:36:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 03:36:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 03:36:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 03:36:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 03:36:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 03:36:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 03:36:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 03:36:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 03:36:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 03:36:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 03:36:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 03:36:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 03:36:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 03:36:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 03:36:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 03:36:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 03:36:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:36:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 03:36:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 03:36:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 03:36:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 03:36:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 03:36:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 03:36:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 03:36:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 03:36:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 03:36:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 03:36:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-11-23 03:36:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-11-23 03:36:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 03:36:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 03:36:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 03:36:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 03:36:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 03:36:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 03:36:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 03:36:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 03:36:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 03:36:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 03:36:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:36:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 03:36:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 03:36:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:36:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:36:46,386 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:36:46,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:36:47,224 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:36:47,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:36:47,617 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:36:47,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:47 BoogieIcfgContainer [2021-11-23 03:36:47,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:36:47,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:36:47,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:36:47,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:36:47,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:36:44" (1/3) ... [2021-11-23 03:36:47,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb5564a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:47, skipping insertion in model container [2021-11-23 03:36:47,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (2/3) ... [2021-11-23 03:36:47,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb5564a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:47, skipping insertion in model container [2021-11-23 03:36:47,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:47" (3/3) ... [2021-11-23 03:36:47,630 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c [2021-11-23 03:36:47,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:36:47,639 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:36:47,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:36:47,715 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:36:47,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:36:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2021-11-23 03:36:47,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 03:36:47,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:47,760 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:47,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:36:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:47,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1578590042, now seen corresponding path program 1 times [2021-11-23 03:36:47,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:47,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040267022] [2021-11-23 03:36:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:47,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:48,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040267022] [2021-11-23 03:36:48,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040267022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:48,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:48,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:36:48,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904244939] [2021-11-23 03:36:48,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:48,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:36:48,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:48,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:36:48,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:36:48,286 INFO L87 Difference]: Start difference. First operand has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:48,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:48,517 INFO L93 Difference]: Finished difference Result 353 states and 466 transitions. [2021-11-23 03:36:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:36:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92 [2021-11-23 03:36:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:48,531 INFO L225 Difference]: With dead ends: 353 [2021-11-23 03:36:48,531 INFO L226 Difference]: Without dead ends: 215 [2021-11-23 03:36:48,536 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:36:48,540 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:48,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:36:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-23 03:36:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-23 03:36:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 127 states have internal predecessors, (158), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-23 03:36:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 287 transitions. [2021-11-23 03:36:48,602 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 287 transitions. Word has length 92 [2021-11-23 03:36:48,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:48,604 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 287 transitions. [2021-11-23 03:36:48,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:48,604 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 287 transitions. [2021-11-23 03:36:48,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 03:36:48,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:48,611 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:48,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:36:48,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:36:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash -916514765, now seen corresponding path program 1 times [2021-11-23 03:36:48,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:48,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113760930] [2021-11-23 03:36:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:48,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:48,786 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:48,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113760930] [2021-11-23 03:36:48,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113760930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:48,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:48,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:36:48,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629993110] [2021-11-23 03:36:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:48,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:48,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:48,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:48,793 INFO L87 Difference]: Start difference. First operand 215 states and 287 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:48,957 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2021-11-23 03:36:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93 [2021-11-23 03:36:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:48,966 INFO L225 Difference]: With dead ends: 349 [2021-11-23 03:36:48,966 INFO L226 Difference]: Without dead ends: 217 [2021-11-23 03:36:48,974 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:36:48,977 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:48,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:36:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-23 03:36:49,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-23 03:36:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 129 states have internal predecessors, (160), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-23 03:36:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 289 transitions. [2021-11-23 03:36:49,041 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 289 transitions. Word has length 93 [2021-11-23 03:36:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:49,048 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 289 transitions. [2021-11-23 03:36:49,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 289 transitions. [2021-11-23 03:36:49,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 03:36:49,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:49,060 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:49,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:36:49,060 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:36:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1051283549, now seen corresponding path program 1 times [2021-11-23 03:36:49,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:49,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178963933] [2021-11-23 03:36:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:49,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:49,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:49,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178963933] [2021-11-23 03:36:49,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178963933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:49,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:49,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:36:49,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359000127] [2021-11-23 03:36:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:49,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:49,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:49,185 INFO L87 Difference]: Start difference. First operand 217 states and 289 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:49,300 INFO L93 Difference]: Finished difference Result 464 states and 637 transitions. [2021-11-23 03:36:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:49,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-23 03:36:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:49,304 INFO L225 Difference]: With dead ends: 464 [2021-11-23 03:36:49,304 INFO L226 Difference]: Without dead ends: 265 [2021-11-23 03:36:49,306 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:36:49,307 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 57 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:49,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 497 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:36:49,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-23 03:36:49,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2021-11-23 03:36:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 161 states have internal predecessors, (213), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-23 03:36:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 364 transitions. [2021-11-23 03:36:49,334 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 364 transitions. Word has length 98 [2021-11-23 03:36:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:49,335 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 364 transitions. [2021-11-23 03:36:49,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:36:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 364 transitions. [2021-11-23 03:36:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 03:36:49,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:49,338 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:49,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:36:49,339 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:36:49,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:49,339 INFO L85 PathProgramCache]: Analyzing trace with hash -519996870, now seen corresponding path program 1 times [2021-11-23 03:36:49,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:49,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498521925] [2021-11-23 03:36:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:49,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:49,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:49,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498521925] [2021-11-23 03:36:49,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498521925] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:36:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089023258] [2021-11-23 03:36:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:49,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:49,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:49,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:49,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:36:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:49,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:36:49,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:50,081 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:50,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:36:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:36:50,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089023258] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:36:50,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372011804] [2021-11-23 03:36:50,348 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2021-11-23 03:36:50,348 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:36:50,354 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:36:50,360 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:36:50,362 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:37:30,849 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2021-11-23 03:37:31,111 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2021-11-23 03:37:33,182 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2021-11-23 03:37:33,229 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 03:37:33,485 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2021-11-23 03:37:57,729 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2021-11-23 03:37:58,408 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2021-11-23 03:37:58,458 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2021-11-23 03:37:58,984 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2021-11-23 03:37:59,069 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2021-11-23 03:37:59,118 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2021-11-23 03:38:00,728 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2021-11-23 03:38:00,778 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:11,825 WARN L227 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:39:36,904 WARN L227 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:39:46,619 WARN L227 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:40:10,260 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 535 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:40:18,712 WARN L227 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 577 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:40:28,795 WARN L227 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 586 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:40:36,405 WARN L227 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 590 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:41:12,752 WARN L227 SmtUtils]: Spent 11.71s on a formula simplification. DAG size of input: 645 DAG size of output: 477 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:41:25,293 WARN L227 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 642 DAG size of output: 514 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:41:34,360 WARN L227 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 636 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:41:53,240 WARN L227 SmtUtils]: Spent 9.07s on a formula simplification. DAG size of input: 702 DAG size of output: 510 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:42:03,312 WARN L227 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 702 DAG size of output: 510 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:42:03,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1372011804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:03,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:42:03,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [4, 4, 4] total 72 [2021-11-23 03:42:03,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495051366] [2021-11-23 03:42:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:03,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-23 03:42:03,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-23 03:42:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=4869, Unknown=0, NotChecked=0, Total=5112 [2021-11-23 03:42:03,324 INFO L87 Difference]: Start difference. First operand 260 states and 364 transitions. Second operand has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-11-23 03:43:22,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:22,881 INFO L93 Difference]: Finished difference Result 796 states and 1203 transitions. [2021-11-23 03:43:22,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-23 03:43:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 99 [2021-11-23 03:43:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:22,889 INFO L225 Difference]: With dead ends: 796 [2021-11-23 03:43:22,889 INFO L226 Difference]: Without dead ends: 554 [2021-11-23 03:43:22,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 283.5s TimeCoverageRelationStatistics Valid=348, Invalid=6962, Unknown=0, NotChecked=0, Total=7310 [2021-11-23 03:43:22,895 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 492 mSDsluCounter, 9775 mSDsCounter, 0 mSdLazyCounter, 12074 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 9762 SdHoareTripleChecker+Invalid, 12171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 12074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:22,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 9762 Invalid, 12171 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [97 Valid, 12074 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time] [2021-11-23 03:43:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-23 03:43:23,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 409. [2021-11-23 03:43:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 274 states have (on average 1.397810218978102) internal successors, (383), 278 states have internal predecessors, (383), 99 states have call successors, (99), 36 states have call predecessors, (99), 35 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2021-11-23 03:43:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 581 transitions. [2021-11-23 03:43:23,043 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 581 transitions. Word has length 99 [2021-11-23 03:43:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:23,044 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 581 transitions. [2021-11-23 03:43:23,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-11-23 03:43:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 581 transitions. [2021-11-23 03:43:23,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 03:43:23,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:23,048 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:23,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 03:43:23,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:23,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1724686373, now seen corresponding path program 1 times [2021-11-23 03:43:23,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:23,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426705044] [2021-11-23 03:43:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:23,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 03:43:23,378 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:23,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426705044] [2021-11-23 03:43:23,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426705044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:23,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:23,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:23,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259937303] [2021-11-23 03:43:23,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:23,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:23,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:23,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:23,382 INFO L87 Difference]: Start difference. First operand 409 states and 581 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 03:43:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:23,718 INFO L93 Difference]: Finished difference Result 891 states and 1296 transitions. [2021-11-23 03:43:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-23 03:43:23,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:23,728 INFO L225 Difference]: With dead ends: 891 [2021-11-23 03:43:23,728 INFO L226 Difference]: Without dead ends: 524 [2021-11-23 03:43:23,730 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:43:23,732 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 55 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:23,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 513 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:43:23,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2021-11-23 03:43:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 517. [2021-11-23 03:43:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 357 states have (on average 1.4369747899159664) internal successors, (513), 361 states have internal predecessors, (513), 124 states have call successors, (124), 36 states have call predecessors, (124), 35 states have return successors, (124), 121 states have call predecessors, (124), 123 states have call successors, (124) [2021-11-23 03:43:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 761 transitions. [2021-11-23 03:43:23,960 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 761 transitions. Word has length 104 [2021-11-23 03:43:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:23,961 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 761 transitions. [2021-11-23 03:43:23,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 03:43:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 761 transitions. [2021-11-23 03:43:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 03:43:23,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:23,967 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:23,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:43:23,968 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash -975616786, now seen corresponding path program 1 times [2021-11-23 03:43:23,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:23,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557066363] [2021-11-23 03:43:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:23,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:43:24,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:24,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557066363] [2021-11-23 03:43:24,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557066363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:24,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641144021] [2021-11-23 03:43:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:24,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:24,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:24,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:24,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:43:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:24,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:43:24,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:43:24,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:43:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:43:24,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641144021] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:43:24,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220788472] [2021-11-23 03:43:24,913 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2021-11-23 03:43:24,914 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:43:24,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:43:24,915 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:43:24,915 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:43:52,906 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2021-11-23 03:43:53,164 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2021-11-23 03:43:54,989 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2021-11-23 03:43:55,038 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2021-11-23 03:43:55,302 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2021-11-23 03:44:38,201 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2021-11-23 03:44:38,878 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2021-11-23 03:44:38,928 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2021-11-23 03:44:39,471 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2021-11-23 03:44:39,550 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2021-11-23 03:44:39,598 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2021-11-23 03:44:41,229 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 429 for LOIs [2021-11-23 03:44:41,462 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 251 for LOIs [2021-11-23 03:44:41,514 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:45:51,906 WARN L227 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:46:17,217 WARN L227 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:46:27,701 WARN L227 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:46:50,734 WARN L227 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 535 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:46:59,074 WARN L227 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 577 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:47:08,808 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 586 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:47:16,341 WARN L227 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 590 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:47:49,686 WARN L227 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 645 DAG size of output: 477 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:48:01,468 WARN L227 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 642 DAG size of output: 514 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:48:09,678 WARN L227 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 640 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)