./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:54:57,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:54:57,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:54:57,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:54:57,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:54:57,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:54:57,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:54:57,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:54:57,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:54:57,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:54:57,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:54:57,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:54:57,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:54:57,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:54:57,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:54:57,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:54:57,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:54:57,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:54:57,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:54:57,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:54:57,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:54:57,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:54:57,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:54:57,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:54:57,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:54:57,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:54:57,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:54:57,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:54:57,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:54:57,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:54:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:54:57,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:54:57,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:54:57,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:54:57,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:54:57,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:54:57,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:54:57,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:54:57,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:54:57,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:54:57,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:54:57,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:54:57,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:54:57,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:54:57,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:54:57,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:54:57,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:54:57,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:54:57,903 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:54:57,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:54:57,903 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:54:57,903 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:54:57,903 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:54:57,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:54:57,904 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:54:57,904 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:54:57,904 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:54:57,904 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:54:57,905 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:54:57,905 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:54:57,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:54:57,906 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:54:57,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:54:57,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:54:57,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:54:57,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:54:57,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:54:57,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:54:57,907 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:54:57,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:54:57,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:54:57,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:54:57,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:54:57,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:54:57,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:54:57,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:54:57,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:54:57,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:54:57,910 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_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 [2022-12-14 15:54:58,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:54:58,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:54:58,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:54:58,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:54:58,122 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:54:58,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2022-12-14 15:55:00,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:55:00,954 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:55:00,955 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2022-12-14 15:55:00,966 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/data/a53571231/3e326855309e4c63a3b38e4d94f5cbcd/FLAG0367bfd56 [2022-12-14 15:55:00,978 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/data/a53571231/3e326855309e4c63a3b38e4d94f5cbcd [2022-12-14 15:55:00,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:55:00,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:55:00,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:55:00,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:55:00,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:55:00,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:00" (1/1) ... [2022-12-14 15:55:00,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e1a92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:00, skipping insertion in model container [2022-12-14 15:55:00,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:55:00" (1/1) ... [2022-12-14 15:55:00,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:55:01,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:55:01,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2022-12-14 15:55:01,262 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,266 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,275 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,277 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,304 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,305 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,308 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,312 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:55:01,364 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:55:01,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2022-12-14 15:55:01,399 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,400 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,414 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,415 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,418 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,419 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,421 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,424 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:55:01,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:55:01,496 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:55:01,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01 WrapperNode [2022-12-14 15:55:01,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:55:01,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:55:01,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:55:01,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:55:01,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,583 INFO L138 Inliner]: procedures = 128, calls = 205, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1008 [2022-12-14 15:55:01,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:55:01,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:55:01,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:55:01,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:55:01,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:55:01,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:55:01,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:55:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:55:01,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (1/1) ... [2022-12-14 15:55:01,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:55:01,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:55:01,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:55:01,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:55:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 15:55:01,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 15:55:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 15:55:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 15:55:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 15:55:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 15:55:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 15:55:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 15:55:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 15:55:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 15:55:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 15:55:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 15:55:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 15:55:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 15:55:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 15:55:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 15:55:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 15:55:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 15:55:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 15:55:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 15:55:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 15:55:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 15:55:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 15:55:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:55:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 15:55:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 15:55:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 15:55:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 15:55:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 15:55:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 15:55:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 15:55:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 15:55:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 15:55:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 15:55:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 15:55:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 15:55:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 15:55:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 15:55:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:55:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 15:55:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 15:55:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:55:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:55:01,861 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:55:01,863 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:55:02,411 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:55:02,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:55:02,690 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:55:02,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:55:02 BoogieIcfgContainer [2022-12-14 15:55:02,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:55:02,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:55:02,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:55:02,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:55:02,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:55:00" (1/3) ... [2022-12-14 15:55:02,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe9a40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:55:02, skipping insertion in model container [2022-12-14 15:55:02,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:55:01" (2/3) ... [2022-12-14 15:55:02,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe9a40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:55:02, skipping insertion in model container [2022-12-14 15:55:02,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:55:02" (3/3) ... [2022-12-14 15:55:02,698 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2022-12-14 15:55:02,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:55:02,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:55:02,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:55:02,754 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;@fd5ee91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:55:02,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:55:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 15:55:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 15:55:02,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:02,767 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] [2022-12-14 15:55:02,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:55:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2089598566, now seen corresponding path program 1 times [2022-12-14 15:55:02,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:02,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790110198] [2022-12-14 15:55:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:02,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:02,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790110198] [2022-12-14 15:55:02,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790110198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:02,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:02,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:55:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271907188] [2022-12-14 15:55:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:02,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:55:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:55:03,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:55:03,020 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:03,122 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2022-12-14 15:55:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:55:03,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 15:55:03,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:03,131 INFO L225 Difference]: With dead ends: 259 [2022-12-14 15:55:03,132 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 15:55:03,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:55:03,137 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:03,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:55:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 15:55:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-14 15:55:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 101 states have internal predecessors, (128), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 15:55:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 227 transitions. [2022-12-14 15:55:03,174 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 227 transitions. Word has length 72 [2022-12-14 15:55:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:03,175 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 227 transitions. [2022-12-14 15:55:03,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 227 transitions. [2022-12-14 15:55:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 15:55:03,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:03,178 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] [2022-12-14 15:55:03,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:55:03,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:55:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1947532178, now seen corresponding path program 1 times [2022-12-14 15:55:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:03,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283986918] [2022-12-14 15:55:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:03,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283986918] [2022-12-14 15:55:03,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283986918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:03,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:03,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739829568] [2022-12-14 15:55:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:03,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:03,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:03,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:03,336 INFO L87 Difference]: Start difference. First operand 168 states and 227 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:03,442 INFO L93 Difference]: Finished difference Result 255 states and 334 transitions. [2022-12-14 15:55:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-12-14 15:55:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:03,446 INFO L225 Difference]: With dead ends: 255 [2022-12-14 15:55:03,446 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 15:55:03,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:03,449 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:03,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:55:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 15:55:03,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-12-14 15:55:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 100 states have (on average 1.3) internal successors, (130), 103 states have internal predecessors, (130), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 15:55:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-12-14 15:55:03,474 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 73 [2022-12-14 15:55:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:03,475 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-12-14 15:55:03,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-12-14 15:55:03,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 15:55:03,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:03,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:55:03,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:55:03,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:55:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:03,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1890615404, now seen corresponding path program 1 times [2022-12-14 15:55:03,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:03,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112051152] [2022-12-14 15:55:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:03,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:03,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:03,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112051152] [2022-12-14 15:55:03,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112051152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:03,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:03,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:03,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619597786] [2022-12-14 15:55:03,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:03,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:03,618 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:03,712 INFO L93 Difference]: Finished difference Result 370 states and 517 transitions. [2022-12-14 15:55:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:03,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 78 [2022-12-14 15:55:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:03,714 INFO L225 Difference]: With dead ends: 370 [2022-12-14 15:55:03,714 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 15:55:03,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:03,716 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 57 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:03,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 399 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:55:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 15:55:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2022-12-14 15:55:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 135 states have internal predecessors, (183), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 15:55:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 304 transitions. [2022-12-14 15:55:03,730 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 304 transitions. Word has length 78 [2022-12-14 15:55:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:03,730 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 304 transitions. [2022-12-14 15:55:03,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:55:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 304 transitions. [2022-12-14 15:55:03,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 15:55:03,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:03,732 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:55:03,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:55:03,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:55:03,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 339231456, now seen corresponding path program 1 times [2022-12-14 15:55:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:03,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957072901] [2022-12-14 15:55:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:03,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:03,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957072901] [2022-12-14 15:55:03,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957072901] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:55:03,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067336086] [2022-12-14 15:55:03,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:03,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:55:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:55:03,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:55:03,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:55:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:04,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:55:04,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:55:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:04,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:55:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 15:55:04,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067336086] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:55:04,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1822342092] [2022-12-14 15:55:04,208 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 15:55:04,208 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:55:04,210 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:55:04,214 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:55:04,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:55:39,975 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 15:55:40,259 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 15:55:40,545 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:56:15,943 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 593 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:56:22,461 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 595 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:56:27,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1822342092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:27,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:56:27,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 15:56:27,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246530731] [2022-12-14 15:56:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:27,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 15:56:27,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:27,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 15:56:27,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 15:56:27,642 INFO L87 Difference]: Start difference. First operand 213 states and 304 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 15:56:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:39,426 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-12-14 15:56:39,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 15:56:39,426 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 79 [2022-12-14 15:56:39,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:39,428 INFO L225 Difference]: With dead ends: 509 [2022-12-14 15:56:39,428 INFO L226 Difference]: Without dead ends: 314 [2022-12-14 15:56:39,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 53.0s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:56:39,430 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 137 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:39,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3003 Invalid, 1949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 15:56:39,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-12-14 15:56:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 241. [2022-12-14 15:56:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 159 states have (on average 1.3962264150943395) internal successors, (222), 162 states have internal predecessors, (222), 61 states have call successors, (61), 20 states have call predecessors, (61), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 15:56:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 343 transitions. [2022-12-14 15:56:39,528 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 343 transitions. Word has length 79 [2022-12-14 15:56:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:39,529 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 343 transitions. [2022-12-14 15:56:39,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 15:56:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 343 transitions. [2022-12-14 15:56:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 15:56:39,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:39,532 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 15:56:39,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:56:39,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:56:39,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:56:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1905170828, now seen corresponding path program 1 times [2022-12-14 15:56:39,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:39,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192808913] [2022-12-14 15:56:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:39,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 15:56:39,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:39,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192808913] [2022-12-14 15:56:39,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192808913] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:56:39,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316118544] [2022-12-14 15:56:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:39,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:56:39,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:56:39,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:56:39,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:56:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:40,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:56:40,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:56:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 15:56:40,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:56:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 15:56:40,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316118544] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:56:40,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1639883701] [2022-12-14 15:56:40,150 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 15:56:40,150 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:56:40,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:56:40,151 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:56:40,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:57:17,652 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 15:57:17,996 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 15:57:18,278 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2022-12-14 15:57:19,761 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-12-14 15:57:25,677 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 449 for LOIs [2022-12-14 15:57:26,505 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 15:57:26,543 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 15:57:31,504 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:57:58,421 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 498 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:58:09,017 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:58:16,457 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:58:49,789 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 449 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:58:57,042 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 468 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:59:20,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1639883701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:20,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:59:20,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 15:59:20,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382694521] [2022-12-14 15:59:20,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:20,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 15:59:20,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:20,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 15:59:20,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2607, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 15:59:20,835 INFO L87 Difference]: Start difference. First operand 241 states and 343 transitions. Second operand has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 16:00:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:06,742 INFO L93 Difference]: Finished difference Result 593 states and 893 transitions. [2022-12-14 16:00:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 16:00:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 85 [2022-12-14 16:00:06,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:06,744 INFO L225 Difference]: With dead ends: 593 [2022-12-14 16:00:06,744 INFO L226 Difference]: Without dead ends: 398 [2022-12-14 16:00:06,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 139.6s TimeCoverageRelationStatistics Valid=230, Invalid=4060, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 16:00:06,746 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 186 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 5681 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 5119 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 5681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:06,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 5119 Invalid, 5708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 5681 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2022-12-14 16:00:06,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-12-14 16:00:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 314. [2022-12-14 16:00:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 218 states have (on average 1.4174311926605505) internal successors, (309), 223 states have internal predecessors, (309), 70 states have call successors, (70), 26 states have call predecessors, (70), 25 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 16:00:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 448 transitions. [2022-12-14 16:00:06,899 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 448 transitions. Word has length 85 [2022-12-14 16:00:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:06,899 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 448 transitions. [2022-12-14 16:00:06,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 16:00:06,900 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 448 transitions. [2022-12-14 16:00:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 16:00:06,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:06,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:00:06,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:00:07,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:07,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:00:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:07,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1020324211, now seen corresponding path program 1 times [2022-12-14 16:00:07,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:07,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360277863] [2022-12-14 16:00:07,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:07,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:00:07,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:07,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360277863] [2022-12-14 16:00:07,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360277863] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:00:07,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936062544] [2022-12-14 16:00:07,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:07,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:07,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:07,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:07,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:00:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:07,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:00:07,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:00:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:00:07,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:00:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:00:07,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936062544] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:00:07,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [526201801] [2022-12-14 16:00:07,568 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 16:00:07,569 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:00:07,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:00:07,569 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:00:07,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:01:09,799 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 16:01:10,082 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-12-14 16:01:10,350 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-12-14 16:01:10,618 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 226 for LOIs [2022-12-14 16:01:11,781 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 16:01:11,837 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 16:01:12,123 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-12-14 16:01:24,291 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 393 for LOIs [2022-12-14 16:01:24,691 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 16:01:24,721 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 217 for LOIs [2022-12-14 16:01:24,810 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:02:19,198 WARN L233 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 523 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:03:13,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [526201801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:03:13,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:03:13,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2022-12-14 16:03:13,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868484780] [2022-12-14 16:03:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:03:13,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-14 16:03:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:03:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-14 16:03:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=3358, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 16:03:13,728 INFO L87 Difference]: Start difference. First operand 314 states and 448 transitions. Second operand has 55 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 33 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 16:03:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:03:53,034 INFO L93 Difference]: Finished difference Result 668 states and 1002 transitions. [2022-12-14 16:03:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 16:03:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 33 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 88 [2022-12-14 16:03:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:03:53,037 INFO L225 Difference]: With dead ends: 668 [2022-12-14 16:03:53,037 INFO L226 Difference]: Without dead ends: 473 [2022-12-14 16:03:53,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 125.3s TimeCoverageRelationStatistics Valid=243, Invalid=4449, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 16:03:53,039 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 242 mSDsluCounter, 5662 mSDsCounter, 0 mSdLazyCounter, 8325 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 8354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 8325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:03:53,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 5917 Invalid, 8354 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 8325 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2022-12-14 16:03:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-12-14 16:03:53,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 414. [2022-12-14 16:03:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 298 states have (on average 1.419463087248322) internal successors, (423), 305 states have internal predecessors, (423), 83 states have call successors, (83), 34 states have call predecessors, (83), 32 states have return successors, (83), 76 states have call predecessors, (83), 82 states have call successors, (83) [2022-12-14 16:03:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 589 transitions. [2022-12-14 16:03:53,300 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 589 transitions. Word has length 88 [2022-12-14 16:03:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:03:53,300 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 589 transitions. [2022-12-14 16:03:53,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 33 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 16:03:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 589 transitions. [2022-12-14 16:03:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 16:03:53,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:03:53,303 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:03:53,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 16:03:53,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:03:53,504 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:03:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:03:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 393092552, now seen corresponding path program 1 times [2022-12-14 16:03:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:03:53,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091186406] [2022-12-14 16:03:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:03:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:03:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:03:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:03:53,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:03:53,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091186406] [2022-12-14 16:03:53,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091186406] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:03:53,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976708216] [2022-12-14 16:03:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:03:53,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:03:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:03:53,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:03:53,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 16:03:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:03:53,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:03:53,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:03:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:03:53,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:03:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:03:53,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976708216] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:03:53,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [457304983] [2022-12-14 16:03:53,938 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-12-14 16:03:53,939 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:03:53,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:03:53,939 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:03:53,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:04:48,485 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 16:04:48,764 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 229 for LOIs [2022-12-14 16:04:48,822 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 228 for LOIs [2022-12-14 16:04:48,879 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 226 for LOIs [2022-12-14 16:04:50,643 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 16:04:50,698 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 16:04:50,979 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-12-14 16:05:09,808 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 214 for LOIs [2022-12-14 16:05:09,870 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 398 for LOIs [2022-12-14 16:05:10,292 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 406 for LOIs [2022-12-14 16:05:13,341 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 16:05:13,371 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 397 for LOIs [2022-12-14 16:05:13,578 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:06:04,447 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 406 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:06:11,460 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 427 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:06:25,377 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 398 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:06:31,287 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 417 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:07:16,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [457304983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:07:16,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 16:07:16,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [4, 4, 4] total 66 [2022-12-14 16:07:16,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299486459] [2022-12-14 16:07:16,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:07:16,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-12-14 16:07:16,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:07:16,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-12-14 16:07:16,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=4107, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 16:07:16,339 INFO L87 Difference]: Start difference. First operand 414 states and 589 transitions. Second operand has 61 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 35 states have internal predecessors, (46), 19 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 16:08:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:08:05,228 INFO L93 Difference]: Finished difference Result 586 states and 833 transitions. [2022-12-14 16:08:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 16:08:05,229 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 35 states have internal predecessors, (46), 19 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 94 [2022-12-14 16:08:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:08:05,231 INFO L225 Difference]: With dead ends: 586 [2022-12-14 16:08:05,232 INFO L226 Difference]: Without dead ends: 508 [2022-12-14 16:08:05,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 141.4s TimeCoverageRelationStatistics Valid=274, Invalid=5732, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 16:08:05,234 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 278 mSDsluCounter, 7206 mSDsCounter, 0 mSdLazyCounter, 10679 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 7465 SdHoareTripleChecker+Invalid, 10702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 10679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:08:05,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 7465 Invalid, 10702 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [23 Valid, 10679 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2022-12-14 16:08:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-12-14 16:08:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 424. [2022-12-14 16:08:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 302 states have (on average 1.413907284768212) internal successors, (427), 310 states have internal predecessors, (427), 85 states have call successors, (85), 38 states have call predecessors, (85), 36 states have return successors, (85), 78 states have call predecessors, (85), 84 states have call successors, (85) [2022-12-14 16:08:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 597 transitions. [2022-12-14 16:08:05,528 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 597 transitions. Word has length 94 [2022-12-14 16:08:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:08:05,528 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 597 transitions. [2022-12-14 16:08:05,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 35 states have internal predecessors, (46), 19 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 16:08:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 597 transitions. [2022-12-14 16:08:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 16:08:05,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:08:05,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:08:05,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 16:08:05,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:08:05,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:08:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:08:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash 793809928, now seen corresponding path program 1 times [2022-12-14 16:08:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:08:05,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404107938] [2022-12-14 16:08:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:08:05,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:08:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:08:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:08:05,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:08:05,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404107938] [2022-12-14 16:08:05,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404107938] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:08:05,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262126798] [2022-12-14 16:08:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:08:05,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:08:05,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:08:05,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:08:05,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe4d2b5-78bb-498c-abfa-5a748199ab32/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 16:08:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:08:06,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:08:06,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:08:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:08:06,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:08:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 16:08:06,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262126798] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:08:06,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [61826636] [2022-12-14 16:08:06,090 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-12-14 16:08:06,091 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:08:06,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:08:06,091 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:08:06,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:08:55,946 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 16:08:56,231 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 16:08:56,503 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 255 for LOIs [2022-12-14 16:08:57,948 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 257 for LOIs