./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/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_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/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_5b846952-82f5-463e-945f-3ae21854738f/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 459b394196a1606fd18d87736056d8c2e811f354c9c1071577c3ccd936910200 --- 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 06:41:35,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:41:35,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:41:35,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:41:35,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:41:35,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:41:35,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:41:35,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:41:35,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:41:35,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:41:35,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:41:35,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:41:35,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:41:35,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:41:35,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:41:35,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:41:35,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:41:35,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:41:35,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:41:35,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:41:35,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:41:35,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:41:35,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:41:35,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:41:35,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:41:35,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:41:35,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:41:35,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:41:35,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:41:35,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:41:35,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:41:35,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:41:35,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:41:35,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:41:35,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:41:35,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:41:35,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:41:35,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:41:35,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:41:35,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:41:35,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:41:35,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:41:35,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:41:35,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:41:35,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:41:35,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:41:35,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:41:35,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:41:35,148 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:41:35,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:41:35,148 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:41:35,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:41:35,149 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:41:35,149 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:41:35,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:41:35,150 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:41:35,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:41:35,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:41:35,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:41:35,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:41:35,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:41:35,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:41:35,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:41:35,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:41:35,153 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_5b846952-82f5-463e-945f-3ae21854738f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459b394196a1606fd18d87736056d8c2e811f354c9c1071577c3ccd936910200 [2022-12-14 06:41:35,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:41:35,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:41:35,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:41:35,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:41:35,332 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:41:35,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product28.cil.c [2022-12-14 06:41:37,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:41:38,160 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:41:38,160 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/sv-benchmarks/c/product-lines/email_spec8_product28.cil.c [2022-12-14 06:41:38,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/data/2431b19fd/178a93f9535f4657afed2477fa9b227b/FLAG79dce3698 [2022-12-14 06:41:38,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/data/2431b19fd/178a93f9535f4657afed2477fa9b227b [2022-12-14 06:41:38,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:41:38,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:41:38,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:41:38,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:41:38,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:41:38,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bf49e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38, skipping insertion in model container [2022-12-14 06:41:38,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:41:38,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:41:38,424 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,426 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,484 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_5b846952-82f5-463e-945f-3ae21854738f/sv-benchmarks/c/product-lines/email_spec8_product28.cil.c[29342,29355] [2022-12-14 06:41:38,513 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,516 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,532 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,537 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:41:38,597 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:41:38,615 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,616 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,635 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_5b846952-82f5-463e-945f-3ae21854738f/sv-benchmarks/c/product-lines/email_spec8_product28.cil.c[29342,29355] [2022-12-14 06:41:38,637 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,638 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,640 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,643 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,644 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:38,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:41:38,686 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:41:38,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38 WrapperNode [2022-12-14 06:41:38,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:41:38,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:41:38,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:41:38,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:41:38,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,739 INFO L138 Inliner]: procedures = 129, calls = 213, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 868 [2022-12-14 06:41:38,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:41:38,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:41:38,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:41:38,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:41:38,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:41:38,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:41:38,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:41:38,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:41:38,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (1/1) ... [2022-12-14 06:41:38,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:41:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:41:38,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:41:38,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:41:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:41:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:41:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:41:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:41:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:41:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:41:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:41:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:41:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:41:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:41:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:41:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:41:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:41:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:41:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:41:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:41:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:41:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:41:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:41:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:41:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:41:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:41:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:41:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:41:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:41:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:41:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:41:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:41:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:41:39,040 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:41:39,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:41:39,577 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:41:39,879 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:41:39,879 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:41:39,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:41:39 BoogieIcfgContainer [2022-12-14 06:41:39,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:41:39,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:41:39,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:41:39,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:41:39,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:41:38" (1/3) ... [2022-12-14 06:41:39,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75972e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:41:39, skipping insertion in model container [2022-12-14 06:41:39,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:38" (2/3) ... [2022-12-14 06:41:39,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75972e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:41:39, skipping insertion in model container [2022-12-14 06:41:39,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:41:39" (3/3) ... [2022-12-14 06:41:39,890 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product28.cil.c [2022-12-14 06:41:39,909 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:41:39,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:41:39,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:41:39,968 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;@16898fda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:41:39,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:41:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 06:41:39,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 06:41:39,984 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:39,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:39,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:39,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:39,990 INFO L85 PathProgramCache]: Analyzing trace with hash 296989017, now seen corresponding path program 1 times [2022-12-14 06:41:39,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:39,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761564385] [2022-12-14 06:41:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:40,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:40,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:40,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761564385] [2022-12-14 06:41:40,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761564385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:40,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:40,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:41:40,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192600878] [2022-12-14 06:41:40,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:41:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:41:40,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:41:40,307 INFO L87 Difference]: Start difference. First operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:40,416 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2022-12-14 06:41:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:41:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 06:41:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:40,425 INFO L225 Difference]: With dead ends: 277 [2022-12-14 06:41:40,426 INFO L226 Difference]: Without dead ends: 177 [2022-12-14 06:41:40,428 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 06:41:40,431 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:40,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-14 06:41:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-12-14 06:41:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 06:41:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2022-12-14 06:41:40,468 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 61 [2022-12-14 06:41:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:40,470 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-12-14 06:41:40,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,470 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2022-12-14 06:41:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 06:41:40,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:40,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:40,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:41:40,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1326372809, now seen corresponding path program 1 times [2022-12-14 06:41:40,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:40,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261482784] [2022-12-14 06:41:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:40,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:40,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261482784] [2022-12-14 06:41:40,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261482784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:40,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:40,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:41:40,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194125283] [2022-12-14 06:41:40,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:40,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:41:40,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:40,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:41:40,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:41:40,616 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:40,708 INFO L93 Difference]: Finished difference Result 273 states and 350 transitions. [2022-12-14 06:41:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:41:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-12-14 06:41:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:40,711 INFO L225 Difference]: With dead ends: 273 [2022-12-14 06:41:40,712 INFO L226 Difference]: Without dead ends: 179 [2022-12-14 06:41:40,713 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 06:41:40,714 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:40,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-14 06:41:40,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-12-14 06:41:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 06:41:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2022-12-14 06:41:40,734 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 237 transitions. Word has length 62 [2022-12-14 06:41:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:40,734 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 237 transitions. [2022-12-14 06:41:40,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 237 transitions. [2022-12-14 06:41:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 06:41:40,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:40,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:40,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:41:40,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:40,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1473384410, now seen corresponding path program 1 times [2022-12-14 06:41:40,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:40,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848874119] [2022-12-14 06:41:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:40,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:40,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848874119] [2022-12-14 06:41:40,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848874119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:40,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:40,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:41:40,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238641139] [2022-12-14 06:41:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:40,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:41:40,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:40,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:41:40,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:41:40,833 INFO L87 Difference]: Start difference. First operand 179 states and 237 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:40,920 INFO L93 Difference]: Finished difference Result 388 states and 533 transitions. [2022-12-14 06:41:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:41:40,921 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-12-14 06:41:40,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:40,923 INFO L225 Difference]: With dead ends: 388 [2022-12-14 06:41:40,923 INFO L226 Difference]: Without dead ends: 227 [2022-12-14 06:41:40,925 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 06:41:40,926 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:40,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 422 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:40,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-12-14 06:41:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2022-12-14 06:41:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 141 states have internal predecessors, (191), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 06:41:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2022-12-14 06:41:40,947 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 67 [2022-12-14 06:41:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:40,947 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2022-12-14 06:41:40,947 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 06:41:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2022-12-14 06:41:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 06:41:40,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:40,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:40,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:41:40,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:40,951 INFO L85 PathProgramCache]: Analyzing trace with hash -562195417, now seen corresponding path program 1 times [2022-12-14 06:41:40,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:40,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688745218] [2022-12-14 06:41:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:41,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:41,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688745218] [2022-12-14 06:41:41,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688745218] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:41:41,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956636135] [2022-12-14 06:41:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:41,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:41:41,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:41:41,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:41:41,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:41:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:41,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:41:41,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:41:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:41,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:41:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:41:41,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956636135] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:41:41,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1384930864] [2022-12-14 06:41:41,449 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-12-14 06:41:41,449 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:41:41,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:41:41,456 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:41:41,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:42:09,477 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:42:09,768 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:42:10,065 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 480 for LOIs [2022-12-14 06:42:20,735 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 475 for LOIs [2022-12-14 06:42:39,933 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 444 for LOIs [2022-12-14 06:42:40,218 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 248 for LOIs [2022-12-14 06:42:40,283 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 253 for LOIs [2022-12-14 06:42:40,324 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 459 for LOIs [2022-12-14 06:42:40,967 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:44:32,386 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 579 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:44:35,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1384930864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:44:35,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:44:35,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-12-14 06:44:35,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019796806] [2022-12-14 06:44:35,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:44:35,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-14 06:44:35,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:44:35,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-14 06:44:35,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2311, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 06:44:35,213 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 45 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 9 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 06:45:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:07,870 INFO L93 Difference]: Finished difference Result 555 states and 829 transitions. [2022-12-14 06:45:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-14 06:45:07,871 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 9 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 68 [2022-12-14 06:45:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:07,873 INFO L225 Difference]: With dead ends: 555 [2022-12-14 06:45:07,873 INFO L226 Difference]: Without dead ends: 351 [2022-12-14 06:45:07,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 129.3s TimeCoverageRelationStatistics Valid=176, Invalid=2904, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 06:45:07,875 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 203 mSDsluCounter, 5304 mSDsCounter, 0 mSdLazyCounter, 5666 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 5544 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 5666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:07,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 5544 Invalid, 5683 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 5666 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2022-12-14 06:45:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-12-14 06:45:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 297. [2022-12-14 06:45:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 201 states have (on average 1.4328358208955223) internal successors, (288), 204 states have internal predecessors, (288), 68 states have call successors, (68), 29 states have call predecessors, (68), 27 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 06:45:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 423 transitions. [2022-12-14 06:45:07,966 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 423 transitions. Word has length 68 [2022-12-14 06:45:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:07,966 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 423 transitions. [2022-12-14 06:45:07,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 9 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 06:45:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 423 transitions. [2022-12-14 06:45:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 06:45:07,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:07,968 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:45:07,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:45:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:45:08,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:45:08,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1354513975, now seen corresponding path program 1 times [2022-12-14 06:45:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:08,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991308070] [2022-12-14 06:45:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:45:08,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:08,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991308070] [2022-12-14 06:45:08,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991308070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:08,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:08,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:45:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113640157] [2022-12-14 06:45:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:08,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:45:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:08,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:45:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:45:08,258 INFO L87 Difference]: Start difference. First operand 297 states and 423 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:45:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:08,523 INFO L93 Difference]: Finished difference Result 708 states and 1052 transitions. [2022-12-14 06:45:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:45:08,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 06:45:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:08,527 INFO L225 Difference]: With dead ends: 708 [2022-12-14 06:45:08,527 INFO L226 Difference]: Without dead ends: 437 [2022-12-14 06:45:08,528 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 06:45:08,529 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 55 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:08,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 434 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:45:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-12-14 06:45:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 430. [2022-12-14 06:45:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 309 states have (on average 1.5048543689320388) internal successors, (465), 312 states have internal predecessors, (465), 93 states have call successors, (93), 29 states have call predecessors, (93), 27 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-14 06:45:08,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 650 transitions. [2022-12-14 06:45:08,663 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 650 transitions. Word has length 73 [2022-12-14 06:45:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:08,663 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 650 transitions. [2022-12-14 06:45:08,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:45:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 650 transitions. [2022-12-14 06:45:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 06:45:08,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:08,664 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:45:08,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:45:08,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:45:08,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2110555067, now seen corresponding path program 1 times [2022-12-14 06:45:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:08,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499031221] [2022-12-14 06:45:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:45:08,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:08,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499031221] [2022-12-14 06:45:08,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499031221] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:45:08,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135037100] [2022-12-14 06:45:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:08,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:45:08,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:45:08,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:45:08,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:45:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:08,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:45:08,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:45:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:45:08,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:45:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:45:09,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135037100] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:45:09,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [648366092] [2022-12-14 06:45:09,008 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 06:45:09,008 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:45:09,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:45:09,009 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:45:09,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:45:49,424 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:45:49,729 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:45:50,019 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:30,643 WARN L233 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 587 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:46:48,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [648366092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:48,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:48,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 06:46:48,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409026632] [2022-12-14 06:46:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:48,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 06:46:48,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:48,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 06:46:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 06:46:48,857 INFO L87 Difference]: Start difference. First operand 430 states and 650 transitions. Second operand has 25 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 06:47:09,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:09,770 INFO L93 Difference]: Finished difference Result 872 states and 1365 transitions. [2022-12-14 06:47:09,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 06:47:09,771 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-12-14 06:47:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:09,773 INFO L225 Difference]: With dead ends: 872 [2022-12-14 06:47:09,773 INFO L226 Difference]: Without dead ends: 578 [2022-12-14 06:47:09,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 72.4s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 06:47:09,774 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 180 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:09,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 3451 Invalid, 2278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 06:47:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-12-14 06:47:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 507. [2022-12-14 06:47:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 382 states have (on average 1.5340314136125655) internal successors, (586), 387 states have internal predecessors, (586), 96 states have call successors, (96), 30 states have call predecessors, (96), 28 states have return successors, (95), 91 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 06:47:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 777 transitions. [2022-12-14 06:47:09,977 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 777 transitions. Word has length 74 [2022-12-14 06:47:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:09,977 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 777 transitions. [2022-12-14 06:47:09,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 06:47:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 777 transitions. [2022-12-14 06:47:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 06:47:09,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:09,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:09,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:47:10,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 06:47:10,180 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:47:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1945474699, now seen corresponding path program 1 times [2022-12-14 06:47:10,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:10,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858350907] [2022-12-14 06:47:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:47:10,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858350907] [2022-12-14 06:47:10,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858350907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031297496] [2022-12-14 06:47:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:10,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:10,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:10,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:10,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:47:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:10,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:47:10,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:47:10,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:47:10,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031297496] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:47:10,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1073013152] [2022-12-14 06:47:10,608 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 06:47:10,608 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:47:10,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:47:10,609 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:47:10,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:48:40,805 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:48:41,160 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 06:48:41,440 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 06:48:41,721 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 236 for LOIs [2022-12-14 06:48:42,352 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 06:48:42,410 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:48:42,709 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 231 for LOIs [2022-12-14 06:48:55,757 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 202 for LOIs [2022-12-14 06:48:55,786 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 222 for LOIs [2022-12-14 06:48:55,844 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 227 for LOIs [2022-12-14 06:48:55,879 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 06:48:57,248 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:58,219 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 531 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:50:41,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1073013152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:41,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:50:41,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 06:50:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410271429] [2022-12-14 06:50:41,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:41,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 06:50:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:41,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 06:50:41,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3253, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 06:50:41,696 INFO L87 Difference]: Start difference. First operand 507 states and 777 transitions. Second operand has 54 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 32 states have internal predecessors, (39), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:51:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:21,595 INFO L93 Difference]: Finished difference Result 956 states and 1482 transitions. [2022-12-14 06:51:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 06:51:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 32 states have internal predecessors, (39), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 77 [2022-12-14 06:51:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:21,598 INFO L225 Difference]: With dead ends: 956 [2022-12-14 06:51:21,598 INFO L226 Difference]: Without dead ends: 662 [2022-12-14 06:51:21,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 123.7s TimeCoverageRelationStatistics Valid=236, Invalid=4456, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 06:51:21,600 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 220 mSDsluCounter, 4937 mSDsCounter, 0 mSdLazyCounter, 6974 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 7003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:21,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 5165 Invalid, 7003 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 6974 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2022-12-14 06:51:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-12-14 06:51:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 588. [2022-12-14 06:51:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 444 states have (on average 1.5135135135135136) internal successors, (672), 452 states have internal predecessors, (672), 108 states have call successors, (108), 39 states have call predecessors, (108), 35 states have return successors, (107), 98 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 06:51:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 887 transitions. [2022-12-14 06:51:21,891 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 887 transitions. Word has length 77 [2022-12-14 06:51:21,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:21,892 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 887 transitions. [2022-12-14 06:51:21,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 32 states have internal predecessors, (39), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:51:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 887 transitions. [2022-12-14 06:51:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:51:21,893 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:21,893 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 06:51:21,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 06:51:22,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:51:22,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:51:22,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:22,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1187333351, now seen corresponding path program 1 times [2022-12-14 06:51:22,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:22,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135406862] [2022-12-14 06:51:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 06:51:22,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:22,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135406862] [2022-12-14 06:51:22,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135406862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:22,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:22,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:22,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511463655] [2022-12-14 06:51:22,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:22,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:22,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:22,236 INFO L87 Difference]: Start difference. First operand 588 states and 887 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:51:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:22,631 INFO L93 Difference]: Finished difference Result 709 states and 1030 transitions. [2022-12-14 06:51:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 79 [2022-12-14 06:51:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:22,636 INFO L225 Difference]: With dead ends: 709 [2022-12-14 06:51:22,636 INFO L226 Difference]: Without dead ends: 616 [2022-12-14 06:51:22,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:51:22,637 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 121 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:22,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 295 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:51:22,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-12-14 06:51:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 614. [2022-12-14 06:51:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 457 states have (on average 1.49890590809628) internal successors, (685), 466 states have internal predecessors, (685), 114 states have call successors, (114), 47 states have call predecessors, (114), 42 states have return successors, (113), 103 states have call predecessors, (113), 113 states have call successors, (113) [2022-12-14 06:51:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 912 transitions. [2022-12-14 06:51:22,920 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 912 transitions. Word has length 79 [2022-12-14 06:51:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:22,921 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 912 transitions. [2022-12-14 06:51:22,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 06:51:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 912 transitions. [2022-12-14 06:51:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 06:51:22,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:22,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:22,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:51:22,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:51:22,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:22,923 INFO L85 PathProgramCache]: Analyzing trace with hash 918661539, now seen corresponding path program 1 times [2022-12-14 06:51:22,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:22,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625153742] [2022-12-14 06:51:22,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:22,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 06:51:23,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:23,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625153742] [2022-12-14 06:51:23,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625153742] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:51:23,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991785586] [2022-12-14 06:51:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:23,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:51:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:51:23,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:51:23,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b846952-82f5-463e-945f-3ae21854738f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:51:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:23,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:51:23,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:51:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-14 06:51:23,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:51:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 06:51:23,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991785586] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:51:23,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [377626288] [2022-12-14 06:51:23,390 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-12-14 06:51:23,390 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:51:23,390 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:51:23,391 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:51:23,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:52:49,107 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:52:49,395 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 06:52:49,668 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 06:52:49,946 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 236 for LOIs [2022-12-14 06:52:51,126 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 06:52:51,183 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:52:51,472 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 231 for LOIs [2022-12-14 06:53:30,766 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 224 for LOIs [2022-12-14 06:53:31,377 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 407 for LOIs [2022-12-14 06:53:31,825 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 222 for LOIs [2022-12-14 06:53:31,884 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 380 for LOIs [2022-12-14 06:53:32,066 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 06:53:33,425 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 384 for LOIs [2022-12-14 06:53:33,635 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:54:31,934 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 531 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:55:38,774 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 575 DAG size of output: 474 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)