./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0 --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 34de882518b863b3a10882f7e6c83b5092b3f8512e5800a72c11385e11ff9a6e --- 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-e04fb08 [2022-11-16 15:54:16,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:54:16,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:54:16,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:54:16,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:54:16,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:54:16,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:54:16,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:54:16,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:54:16,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:54:16,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:54:16,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:54:16,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:54:16,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:54:16,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:54:16,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:54:16,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:54:16,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:54:16,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:54:16,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:54:16,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:54:16,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:54:16,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:54:16,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:54:16,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:54:16,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:54:16,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:54:16,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:54:16,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:54:16,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:54:16,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:54:16,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:54:16,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:54:16,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:54:16,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:54:16,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:54:16,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:54:16,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:54:16,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:54:16,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:54:16,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:54:16,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:54:16,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:54:16,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:54:16,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:54:16,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:54:16,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:54:16,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:54:16,362 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:54:16,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:54:16,363 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:54:16,364 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:54:16,365 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:54:16,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:54:16,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:54:16,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:54:16,366 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:54:16,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:54:16,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:54:16,367 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:54:16,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:54:16,368 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:54:16,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:54:16,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:54:16,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:54:16,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:54:16,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:54:16,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:54:16,370 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:54:16,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:54:16,370 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:54:16,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:54:16,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:54:16,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:54:16,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:16,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:54:16,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:54:16,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:54:16,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:54:16,373 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:54:16,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:54:16,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:54:16,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:54:16,374 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_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34de882518b863b3a10882f7e6c83b5092b3f8512e5800a72c11385e11ff9a6e [2022-11-16 15:54:16,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:54:16,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:54:16,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:54:16,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:54:16,665 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:54:16,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/email_spec11_product15.cil.c [2022-11-16 15:54:16,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/data/898062c27/bcb52329a85e464988e5c73efb07fef7/FLAG53967b93d [2022-11-16 15:54:17,368 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:54:17,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/sv-benchmarks/c/product-lines/email_spec11_product15.cil.c [2022-11-16 15:54:17,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/data/898062c27/bcb52329a85e464988e5c73efb07fef7/FLAG53967b93d [2022-11-16 15:54:17,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/data/898062c27/bcb52329a85e464988e5c73efb07fef7 [2022-11-16 15:54:17,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:54:17,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:54:17,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:17,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:54:17,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:54:17,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:17" (1/1) ... [2022-11-16 15:54:17,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fc758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:17, skipping insertion in model container [2022-11-16 15:54:17,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:17" (1/1) ... [2022-11-16 15:54:17,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:54:17,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:54:18,375 WARN L229 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_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/sv-benchmarks/c/product-lines/email_spec11_product15.cil.c[45629,45642] [2022-11-16 15:54:18,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:18,523 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:54:18,613 WARN L229 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_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/sv-benchmarks/c/product-lines/email_spec11_product15.cil.c[45629,45642] [2022-11-16 15:54:18,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:18,684 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:54:18,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18 WrapperNode [2022-11-16 15:54:18,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:18,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:18,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:54:18,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:54:18,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,833 INFO L138 Inliner]: procedures = 125, calls = 195, calls flagged for inlining = 53, calls inlined = 46, statements flattened = 895 [2022-11-16 15:54:18,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:18,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:54:18,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:54:18,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:54:18,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:54:18,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:54:18,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:54:18,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:54:18,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (1/1) ... [2022-11-16 15:54:18,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:18,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:18,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:54:18,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:54:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 15:54:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 15:54:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 15:54:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 15:54:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 15:54:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 15:54:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 15:54:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 15:54:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-16 15:54:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-16 15:54:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 15:54:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 15:54:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 15:54:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 15:54:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 15:54:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 15:54:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 15:54:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 15:54:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 15:54:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 15:54:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 15:54:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:54:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 15:54:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 15:54:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 15:54:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 15:54:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 15:54:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 15:54:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 15:54:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 15:54:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 15:54:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 15:54:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 15:54:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 15:54:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 15:54:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 15:54:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:54:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 15:54:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 15:54:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:54:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:54:19,289 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:54:19,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:54:20,225 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:54:20,847 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:54:20,847 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 15:54:20,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:54:20 BoogieIcfgContainer [2022-11-16 15:54:20,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:54:20,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:54:20,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:54:20,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:54:20,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:54:17" (1/3) ... [2022-11-16 15:54:20,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de9b4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:20, skipping insertion in model container [2022-11-16 15:54:20,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:18" (2/3) ... [2022-11-16 15:54:20,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de9b4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:20, skipping insertion in model container [2022-11-16 15:54:20,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:54:20" (3/3) ... [2022-11-16 15:54:20,865 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product15.cil.c [2022-11-16 15:54:20,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:54:20,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:54:20,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:54:20,998 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;@69001efc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:54:20,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:54:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 94 states have internal predecessors, (123), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-16 15:54:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 15:54:21,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:21,022 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] [2022-11-16 15:54:21,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2126102577, now seen corresponding path program 1 times [2022-11-16 15:54:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:21,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780232348] [2022-11-16 15:54:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:21,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:21,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:21,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780232348] [2022-11-16 15:54:21,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780232348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:21,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:21,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:54:21,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015169006] [2022-11-16 15:54:21,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:21,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 15:54:21,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 15:54:21,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 15:54:21,629 INFO L87 Difference]: Start difference. First operand has 152 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 94 states have internal predecessors, (123), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:21,803 INFO L93 Difference]: Finished difference Result 221 states and 292 transitions. [2022-11-16 15:54:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:54:21,806 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-11-16 15:54:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:21,823 INFO L225 Difference]: With dead ends: 221 [2022-11-16 15:54:21,823 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 15:54:21,831 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 [2022-11-16 15:54:21,836 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:21,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:54:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 15:54:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 15:54:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 91 states have internal predecessors, (117), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-16 15:54:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 200 transitions. [2022-11-16 15:54:21,901 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 200 transitions. Word has length 66 [2022-11-16 15:54:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:21,903 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 200 transitions. [2022-11-16 15:54:21,903 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 200 transitions. [2022-11-16 15:54:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 15:54:21,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:21,908 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] [2022-11-16 15:54:21,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:54:21,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1259755910, now seen corresponding path program 1 times [2022-11-16 15:54:21,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:21,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492050888] [2022-11-16 15:54:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:21,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:22,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:22,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492050888] [2022-11-16 15:54:22,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492050888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:22,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:22,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:54:22,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203481776] [2022-11-16 15:54:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:22,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:54:22,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:54:22,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:22,329 INFO L87 Difference]: Start difference. First operand 149 states and 200 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:22,527 INFO L93 Difference]: Finished difference Result 217 states and 280 transitions. [2022-11-16 15:54:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:54:22,528 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-16 15:54:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:22,530 INFO L225 Difference]: With dead ends: 217 [2022-11-16 15:54:22,531 INFO L226 Difference]: Without dead ends: 151 [2022-11-16 15:54:22,532 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 [2022-11-16 15:54:22,533 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:22,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:54:22,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-16 15:54:22,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-16 15:54:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 93 states have internal predecessors, (119), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-16 15:54:22,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2022-11-16 15:54:22,559 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 67 [2022-11-16 15:54:22,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:22,560 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2022-11-16 15:54:22,560 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2022-11-16 15:54:22,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 15:54:22,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:22,564 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] [2022-11-16 15:54:22,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:54:22,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1209431013, now seen corresponding path program 1 times [2022-11-16 15:54:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:22,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523383438] [2022-11-16 15:54:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:22,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:22,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523383438] [2022-11-16 15:54:22,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523383438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:22,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:22,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:54:22,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597055154] [2022-11-16 15:54:22,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:22,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:54:22,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:54:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:22,802 INFO L87 Difference]: Start difference. First operand 151 states and 202 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:22,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:22,932 INFO L93 Difference]: Finished difference Result 332 states and 463 transitions. [2022-11-16 15:54:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:54:22,933 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-11-16 15:54:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:22,940 INFO L225 Difference]: With dead ends: 332 [2022-11-16 15:54:22,942 INFO L226 Difference]: Without dead ends: 199 [2022-11-16 15:54:22,947 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 [2022-11-16 15:54:22,953 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 57 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:22,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 352 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:54:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-16 15:54:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 194. [2022-11-16 15:54:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 122 states have (on average 1.4098360655737705) internal successors, (172), 125 states have internal predecessors, (172), 53 states have call successors, (53), 18 states have call predecessors, (53), 18 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-16 15:54:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 277 transitions. [2022-11-16 15:54:22,993 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 277 transitions. Word has length 72 [2022-11-16 15:54:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:22,994 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 277 transitions. [2022-11-16 15:54:22,994 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 15:54:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 277 transitions. [2022-11-16 15:54:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 15:54:22,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:22,999 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] [2022-11-16 15:54:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:54:22,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:23,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:23,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2058511959, now seen corresponding path program 1 times [2022-11-16 15:54:23,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:23,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194126063] [2022-11-16 15:54:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:23,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:23,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:23,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194126063] [2022-11-16 15:54:23,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194126063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:54:23,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330640630] [2022-11-16 15:54:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:23,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:23,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:23,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:54:23,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:54:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:23,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 15:54:23,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:54:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:23,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:54:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 15:54:23,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330640630] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:54:23,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [202282481] [2022-11-16 15:54:23,970 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-16 15:54:23,970 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:54:23,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:54:23,984 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:54:23,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:55:17,529 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-16 15:55:17,934 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-16 15:55:18,300 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:08,620 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 508 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:56:29,535 WARN L233 SmtUtils]: Spent 20.58s on a formula simplification. DAG size of input: 591 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:56:51,347 WARN L233 SmtUtils]: Spent 21.44s on a formula simplification. DAG size of input: 593 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:57:08,192 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 545 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:57:08,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [202282481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:57:08,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:57:08,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-16 15:57:08,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362111440] [2022-11-16 15:57:08,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:57:08,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 15:57:08,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:57:08,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 15:57:08,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-16 15:57:08,206 INFO L87 Difference]: Start difference. First operand 194 states and 277 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-16 15:57:20,865 WARN L233 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 529 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:57:32,096 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 529 DAG size of output: 427 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:57:44,682 WARN L233 SmtUtils]: Spent 12.33s on a formula simplification. DAG size of input: 591 DAG size of output: 430 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:57:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:58,096 INFO L93 Difference]: Finished difference Result 471 states and 722 transitions. [2022-11-16 15:57:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 15:57:58,097 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 73 [2022-11-16 15:57:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:58,100 INFO L225 Difference]: With dead ends: 471 [2022-11-16 15:57:58,100 INFO L226 Difference]: Without dead ends: 295 [2022-11-16 15:57:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 149.7s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-16 15:57:58,102 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 146 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:58,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 2461 Invalid, 1772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-16 15:57:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-11-16 15:57:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 222. [2022-11-16 15:57:58,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 149 states have (on average 1.4161073825503356) internal successors, (211), 152 states have internal predecessors, (211), 53 states have call successors, (53), 19 states have call predecessors, (53), 19 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-16 15:57:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 316 transitions. [2022-11-16 15:57:58,309 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 316 transitions. Word has length 73 [2022-11-16 15:57:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:58,310 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 316 transitions. [2022-11-16 15:57:58,310 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-16 15:57:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 316 transitions. [2022-11-16 15:57:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 15:57:58,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:58,314 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] [2022-11-16 15:57:58,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 15:57:58,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:58,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash -871564781, now seen corresponding path program 1 times [2022-11-16 15:57:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:58,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374805306] [2022-11-16 15:57:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:57:58,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:58,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374805306] [2022-11-16 15:57:58,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374805306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:58,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986546092] [2022-11-16 15:57:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:58,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:58,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:58,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:58,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:57:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:59,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 15:57:59,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:57:59,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:57:59,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986546092] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:57:59,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1071362382] [2022-11-16 15:57:59,224 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-16 15:57:59,225 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:59,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:59,226 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:59,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:58:47,120 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-16 15:58:47,470 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-16 15:58:47,813 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 251 for LOIs [2022-11-16 15:58:49,567 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-11-16 15:58:49,610 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 253 for LOIs [2022-11-16 15:58:56,408 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 448 for LOIs [2022-11-16 15:58:57,051 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-16 15:58:59,182 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:59:12,954 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:59:18,878 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:59:29,927 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 465 DAG size of output: 290 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:59:35,646 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 464 DAG size of output: 281 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:59:46,751 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 486 DAG size of output: 277 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:00:00,666 WARN L233 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 508 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:00:12,508 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:00:24,459 WARN L233 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:00:47,011 WARN L233 SmtUtils]: Spent 22.17s on a formula simplification. DAG size of input: 585 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:01:10,137 WARN L233 SmtUtils]: Spent 22.71s on a formula simplification. DAG size of input: 583 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:01:21,706 WARN L233 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 569 DAG size of output: 433 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:01:38,622 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 471 DAG size of output: 262 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:02:12,596 WARN L233 SmtUtils]: Spent 13.95s on a formula simplification. DAG size of input: 448 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:02:27,528 WARN L233 SmtUtils]: Spent 14.19s on a formula simplification. DAG size of input: 467 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:02:49,240 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 555 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:02:59,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1071362382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:02:59,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:02:59,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [4, 4, 4] total 52 [2022-11-16 16:02:59,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655775113] [2022-11-16 16:02:59,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:02:59,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-16 16:02:59,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:02:59,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-16 16:02:59,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=2514, Unknown=0, NotChecked=0, Total=2652 [2022-11-16 16:02:59,501 INFO L87 Difference]: Start difference. First operand 222 states and 316 transitions. Second operand has 47 states, 32 states have (on average 1.28125) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-16 16:03:27,965 WARN L233 SmtUtils]: Spent 14.38s on a formula simplification. DAG size of input: 522 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:03:42,522 WARN L233 SmtUtils]: Spent 13.97s on a formula simplification. DAG size of input: 520 DAG size of output: 395 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:03:49,380 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 494 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:03:56,544 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 553 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:04,386 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 558 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:12,013 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 560 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:20,338 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 558 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:27,984 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 569 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:36,124 WARN L233 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 560 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:51,111 WARN L233 SmtUtils]: Spent 14.46s on a formula simplification. DAG size of input: 591 DAG size of output: 365 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:04:59,694 WARN L233 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 549 DAG size of output: 350 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:05:07,530 WARN L233 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 554 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:05:15,647 WARN L233 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 556 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:05:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:05:38,997 INFO L93 Difference]: Finished difference Result 553 states and 836 transitions. [2022-11-16 16:05:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-16 16:05:39,004 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 32 states have (on average 1.28125) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 79 [2022-11-16 16:05:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:05:39,008 INFO L225 Difference]: With dead ends: 553 [2022-11-16 16:05:39,009 INFO L226 Difference]: Without dead ends: 377 [2022-11-16 16:05:39,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 373.9s TimeCoverageRelationStatistics Valid=262, Invalid=4568, Unknown=0, NotChecked=0, Total=4830 [2022-11-16 16:05:39,012 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 271 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 5302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:05:39,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 4405 Invalid, 5302 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [47 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 25.0s Time] [2022-11-16 16:05:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-11-16 16:05:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 293. [2022-11-16 16:05:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 206 states have (on average 1.4368932038834952) internal successors, (296), 211 states have internal predecessors, (296), 62 states have call successors, (62), 25 states have call predecessors, (62), 24 states have return successors, (61), 58 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-16 16:05:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 419 transitions. [2022-11-16 16:05:39,308 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 419 transitions. Word has length 79 [2022-11-16 16:05:39,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:05:39,308 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 419 transitions. [2022-11-16 16:05:39,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 32 states have (on average 1.28125) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 8 states have call predecessors, (16), 6 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-16 16:05:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 419 transitions. [2022-11-16 16:05:39,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 16:05:39,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:05:39,312 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] [2022-11-16 16:05:39,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 16:05:39,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:05:39,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:05:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:05:39,519 INFO L85 PathProgramCache]: Analyzing trace with hash 345328811, now seen corresponding path program 1 times [2022-11-16 16:05:39,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:05:39,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983669138] [2022-11-16 16:05:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:05:39,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:05:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:05:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 16:05:39,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:05:39,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983669138] [2022-11-16 16:05:39,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983669138] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:05:39,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498673014] [2022-11-16 16:05:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:05:39,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:05:39,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:05:39,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:05:39,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f80a4c-891c-4b1a-b913-0f94d6e4db7f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:05:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:05:40,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:05:40,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:05:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 16:05:40,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:05:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 16:05:40,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498673014] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:05:40,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011262462] [2022-11-16 16:05:40,174 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-16 16:05:40,175 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:05:40,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:05:40,176 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:05:40,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:07:29,728 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-16 16:07:30,103 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 419 for LOIs [2022-11-16 16:07:30,463 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 418 for LOIs [2022-11-16 16:07:30,832 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 218 for LOIs [2022-11-16 16:07:30,909 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-16 16:07:31,296 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:07:46,223 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:07:52,724 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)