./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product15.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_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/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_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/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_9f0eba33-c14c-4aa5-84e7-9397029530d5/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 b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d --- 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 10:49:18,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:49:18,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:49:18,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:49:18,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:49:18,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:49:18,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:49:18,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:49:18,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:49:18,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:49:18,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:49:18,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:49:18,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:49:18,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:49:18,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:49:18,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:49:18,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:49:18,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:49:18,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:49:18,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:49:18,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:49:18,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:49:18,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:49:18,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:49:18,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:49:18,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:49:18,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:49:18,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:49:18,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:49:18,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:49:18,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:49:18,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:49:18,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:49:18,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:49:18,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:49:18,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:49:18,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:49:18,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:49:18,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:49:18,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:49:18,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:49:18,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:49:18,761 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:49:18,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:49:18,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:49:18,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:49:18,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:49:18,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:49:18,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:49:18,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:49:18,763 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:49:18,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:49:18,764 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:49:18,764 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:49:18,764 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:49:18,764 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:49:18,765 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:49:18,765 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:49:18,765 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:49:18,765 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:49:18,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:49:18,766 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:49:18,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:49:18,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:49:18,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:49:18,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:49:18,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:49:18,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:49:18,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:49:18,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:49:18,769 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_9f0eba33-c14c-4aa5-84e7-9397029530d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d [2022-12-14 10:49:18,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:49:18,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:49:18,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:49:18,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:49:18,995 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:49:18,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2022-12-14 10:49:21,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:49:21,795 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:49:21,796 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2022-12-14 10:49:21,806 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/data/6e0182d75/b0e39903863348d69b82faedcb891150/FLAG2a111a048 [2022-12-14 10:49:22,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/data/6e0182d75/b0e39903863348d69b82faedcb891150 [2022-12-14 10:49:22,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:49:22,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:49:22,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:49:22,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:49:22,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:49:22,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ea106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22, skipping insertion in model container [2022-12-14 10:49:22,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:49:22,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:49:22,390 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,395 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,406 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,483 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,484 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,486 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,490 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,491 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,492 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_9f0eba33-c14c-4aa5-84e7-9397029530d5/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c[44955,44968] [2022-12-14 10:49:22,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:49:22,545 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:49:22,562 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,563 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,567 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,586 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,587 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,589 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,592 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,592 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:49:22,593 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_9f0eba33-c14c-4aa5-84e7-9397029530d5/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c[44955,44968] [2022-12-14 10:49:22,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:49:22,652 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:49:22,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22 WrapperNode [2022-12-14 10:49:22,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:49:22,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:49:22,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:49:22,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:49:22,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,707 INFO L138 Inliner]: procedures = 126, calls = 201, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 889 [2022-12-14 10:49:22,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:49:22,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:49:22,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:49:22,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:49:22,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:49:22,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:49:22,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:49:22,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:49:22,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (1/1) ... [2022-12-14 10:49:22,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:49:22,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:22,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:49:22,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:49:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 10:49:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 10:49:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 10:49:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 10:49:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 10:49:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 10:49:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 10:49:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 10:49:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 10:49:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 10:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 10:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 10:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 10:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 10:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 10:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 10:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 10:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:49:22,953 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:49:22,955 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:49:23,452 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:49:23,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:49:23,660 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:49:23,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:49:23 BoogieIcfgContainer [2022-12-14 10:49:23,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:49:23,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:49:23,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:49:23,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:49:23,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:49:22" (1/3) ... [2022-12-14 10:49:23,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f127dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:49:23, skipping insertion in model container [2022-12-14 10:49:23,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:49:22" (2/3) ... [2022-12-14 10:49:23,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f127dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:49:23, skipping insertion in model container [2022-12-14 10:49:23,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:49:23" (3/3) ... [2022-12-14 10:49:23,668 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product15.cil.c [2022-12-14 10:49:23,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:49:23,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:49:23,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:49:23,724 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;@71ce244a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:49:23,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:49:23,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 10:49:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 10:49:23,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:23,737 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] [2022-12-14 10:49:23,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:23,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:23,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1829699971, now seen corresponding path program 1 times [2022-12-14 10:49:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:23,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342591324] [2022-12-14 10:49:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:23,944 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 10:49:23,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:23,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342591324] [2022-12-14 10:49:23,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342591324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:23,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:23,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:49:23,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596930770] [2022-12-14 10:49:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:23,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:49:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:23,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:49:23,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:49:23,973 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:24,056 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2022-12-14 10:49:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:49:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 10:49:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:24,067 INFO L225 Difference]: With dead ends: 219 [2022-12-14 10:49:24,067 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 10:49:24,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:49:24,074 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:24,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:24,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 10:49:24,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-14 10:49:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 10:49:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2022-12-14 10:49:24,117 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2022-12-14 10:49:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:24,118 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2022-12-14 10:49:24,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2022-12-14 10:49:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 10:49:24,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:24,122 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] [2022-12-14 10:49:24,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:49:24,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash 772080349, now seen corresponding path program 1 times [2022-12-14 10:49:24,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:24,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098317094] [2022-12-14 10:49:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:24,304 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 10:49:24,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:24,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098317094] [2022-12-14 10:49:24,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098317094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:24,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:24,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:24,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265514015] [2022-12-14 10:49:24,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:24,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:24,308 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:24,403 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-12-14 10:49:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:24,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 10:49:24,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:24,405 INFO L225 Difference]: With dead ends: 215 [2022-12-14 10:49:24,406 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 10:49:24,406 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 10:49:24,408 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:24,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 10:49:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 10:49:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 10:49:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2022-12-14 10:49:24,424 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2022-12-14 10:49:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:24,424 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2022-12-14 10:49:24,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2022-12-14 10:49:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 10:49:24,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:24,427 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] [2022-12-14 10:49:24,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:49:24,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1683409963, now seen corresponding path program 1 times [2022-12-14 10:49:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402631058] [2022-12-14 10:49:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:24,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:24,530 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 10:49:24,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:24,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402631058] [2022-12-14 10:49:24,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402631058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:24,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:24,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:49:24,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352258838] [2022-12-14 10:49:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:24,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:24,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:49:24,532 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:24,610 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2022-12-14 10:49:24,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:24,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 10:49:24,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:24,614 INFO L225 Difference]: With dead ends: 330 [2022-12-14 10:49:24,614 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 10:49:24,615 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 10:49:24,615 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 57 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:24,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 362 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:49:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 10:49:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2022-12-14 10:49:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:49:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2022-12-14 10:49:24,628 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2022-12-14 10:49:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:24,628 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2022-12-14 10:49:24,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:49:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2022-12-14 10:49:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 10:49:24,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:24,630 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] [2022-12-14 10:49:24,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:49:24,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:49:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:24,631 INFO L85 PathProgramCache]: Analyzing trace with hash -540920301, now seen corresponding path program 1 times [2022-12-14 10:49:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:24,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081071546] [2022-12-14 10:49:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:24,746 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 10:49:24,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:24,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081071546] [2022-12-14 10:49:24,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081071546] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:24,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366384638] [2022-12-14 10:49:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:24,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:24,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:24,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:24,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:49:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:24,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:49:24,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:25,020 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 10:49:25,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:49:25,069 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 10:49:25,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366384638] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:49:25,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1775418721] [2022-12-14 10:49:25,087 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 10:49:25,088 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:49:25,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:49:25,095 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:49:25,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:49:55,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:49:55,603 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:49:55,895 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:50:41,017 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 595 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:50:53,756 WARN L233 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 597 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:51:05,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1775418721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:51:05,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:51:05,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 10:51:05,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287179369] [2022-12-14 10:51:05,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:51:05,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 10:51:05,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:51:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 10:51:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 10:51:05,518 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 10:51:14,315 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 556 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:51:21,026 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 600 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:51:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:51:28,258 INFO L93 Difference]: Finished difference Result 469 states and 724 transitions. [2022-12-14 10:51:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 10:51:28,258 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2022-12-14 10:51:28,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:51:28,261 INFO L225 Difference]: With dead ends: 469 [2022-12-14 10:51:28,261 INFO L226 Difference]: Without dead ends: 294 [2022-12-14 10:51:28,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 86.5s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 10:51:28,263 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 219 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:51:28,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2316 Invalid, 1636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 10:51:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-12-14 10:51:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 221. [2022-12-14 10:51:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 149 states have (on average 1.4228187919463087) internal successors, (212), 152 states have internal predecessors, (212), 53 states have call successors, (53), 18 states have call predecessors, (53), 18 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:51:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 317 transitions. [2022-12-14 10:51:28,370 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 317 transitions. Word has length 63 [2022-12-14 10:51:28,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:51:28,370 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 317 transitions. [2022-12-14 10:51:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 10:51:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 317 transitions. [2022-12-14 10:51:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:51:28,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:51:28,374 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] [2022-12-14 10:51:28,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:51:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:51:28,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:51:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:51:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1856579083, now seen corresponding path program 1 times [2022-12-14 10:51:28,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:51:28,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490602783] [2022-12-14 10:51:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:28,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:51:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:51:28,741 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 10:51:28,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:51:28,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490602783] [2022-12-14 10:51:28,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490602783] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:51:28,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743478357] [2022-12-14 10:51:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:28,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:51:28,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:51:28,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:51:28,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:51:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:51:28,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:51:28,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:51:28,952 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 10:51:28,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:51:28,995 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 10:51:28,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743478357] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:51:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694766985] [2022-12-14 10:51:28,999 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 10:51:28,999 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:51:29,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:51:29,000 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:51:29,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:52:12,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:52:13,067 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 10:52:13,352 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:53:01,147 WARN L233 SmtUtils]: Spent 7.98s on a formula simplification. DAG size of input: 593 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:53:14,136 WARN L233 SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 595 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:53:41,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [694766985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:53:41,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:53:41,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 10:53:41,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239244848] [2022-12-14 10:53:41,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:53:41,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 10:53:41,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:53:41,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 10:53:41,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-12-14 10:53:41,339 INFO L87 Difference]: Start difference. First operand 221 states and 317 transitions. Second operand has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 10:53:56,097 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification. DAG size of input: 548 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:54:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:54:26,508 INFO L93 Difference]: Finished difference Result 524 states and 803 transitions. [2022-12-14 10:54:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 10:54:26,509 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2022-12-14 10:54:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:54:26,511 INFO L225 Difference]: With dead ends: 524 [2022-12-14 10:54:26,511 INFO L226 Difference]: Without dead ends: 349 [2022-12-14 10:54:26,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 126.1s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 10:54:26,512 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 231 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:54:26,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 2587 Invalid, 2158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 10:54:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-12-14 10:54:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 265. [2022-12-14 10:54:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 190 states have (on average 1.4736842105263157) internal successors, (280), 194 states have internal predecessors, (280), 55 states have call successors, (55), 19 states have call predecessors, (55), 19 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-12-14 10:54:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 389 transitions. [2022-12-14 10:54:26,664 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 389 transitions. Word has length 69 [2022-12-14 10:54:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:54:26,664 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 389 transitions. [2022-12-14 10:54:26,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 10:54:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 389 transitions. [2022-12-14 10:54:26,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 10:54:26,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:54:26,666 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] [2022-12-14 10:54:26,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:54:26,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:54:26,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:54:26,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:54:26,869 INFO L85 PathProgramCache]: Analyzing trace with hash 201554445, now seen corresponding path program 1 times [2022-12-14 10:54:26,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:54:26,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177182447] [2022-12-14 10:54:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:54:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:54:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:54:26,991 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 10:54:26,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:54:26,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177182447] [2022-12-14 10:54:26,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177182447] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:54:26,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139302584] [2022-12-14 10:54:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:54:26,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:54:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:54:26,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:54:26,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:54:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:54:27,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:54:27,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:54:27,217 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 10:54:27,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:54:27,248 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 10:54:27,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139302584] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:54:27,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1033735393] [2022-12-14 10:54:27,252 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 10:54:27,252 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:54:27,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:54:27,252 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:54:27,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:55:05,737 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:55:06,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 242 for LOIs [2022-12-14 10:55:06,086 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 251 for LOIs [2022-12-14 10:55:06,160 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:55:06,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-12-14 10:55:06,765 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:55:53,107 WARN L233 SmtUtils]: Spent 11.45s on a formula simplification. DAG size of input: 636 DAG size of output: 513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:55:59,733 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 638 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:56:16,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1033735393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:56:16,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:56:16,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 10:56:16,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547135381] [2022-12-14 10:56:16,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:56:16,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 10:56:16,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:56:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 10:56:16,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 10:56:16,216 INFO L87 Difference]: Start difference. First operand 265 states and 389 transitions. Second operand has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 10:56:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:56:33,659 INFO L93 Difference]: Finished difference Result 553 states and 850 transitions. [2022-12-14 10:56:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 10:56:33,659 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2022-12-14 10:56:33,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:56:33,661 INFO L225 Difference]: With dead ends: 553 [2022-12-14 10:56:33,661 INFO L226 Difference]: Without dead ends: 378 [2022-12-14 10:56:33,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 76.6s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 10:56:33,663 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 109 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:56:33,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 3079 Invalid, 3165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-12-14 10:56:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-12-14 10:56:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 332. [2022-12-14 10:56:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 250 states have (on average 1.496) internal successors, (374), 255 states have internal predecessors, (374), 59 states have call successors, (59), 22 states have call predecessors, (59), 22 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 10:56:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 491 transitions. [2022-12-14 10:56:33,895 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 491 transitions. Word has length 72 [2022-12-14 10:56:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:56:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 491 transitions. [2022-12-14 10:56:33,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 10:56:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 491 transitions. [2022-12-14 10:56:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 10:56:33,897 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:56:33,898 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] [2022-12-14 10:56:33,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:56:34,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:56:34,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:56:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:56:34,100 INFO L85 PathProgramCache]: Analyzing trace with hash -617282722, now seen corresponding path program 1 times [2022-12-14 10:56:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:56:34,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445951721] [2022-12-14 10:56:34,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:56:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:56:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:56:34,228 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 10:56:34,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:56:34,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445951721] [2022-12-14 10:56:34,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445951721] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:56:34,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166056547] [2022-12-14 10:56:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:56:34,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:56:34,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:56:34,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:56:34,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:56:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:56:34,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:56:34,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:56:34,425 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 10:56:34,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:56:34,460 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 10:56:34,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166056547] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:56:34,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1744026022] [2022-12-14 10:56:34,462 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 10:56:34,462 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:56:34,462 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:56:34,462 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:56:34,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:57:08,489 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:57:08,773 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:57:09,062 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:58:00,407 WARN L233 SmtUtils]: Spent 12.97s on a formula simplification. DAG size of input: 594 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:58:14,189 WARN L233 SmtUtils]: Spent 13.51s on a formula simplification. DAG size of input: 596 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:58:20,908 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 595 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:58:28,223 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 593 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:58:54,560 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 584 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:59:00,498 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 586 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:59:07,618 WARN L233 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 582 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:59:08,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1744026022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:59:08,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:59:08,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 10:59:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941706075] [2022-12-14 10:59:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:59:08,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 10:59:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:59:08,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 10:59:08,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=964, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 10:59:08,510 INFO L87 Difference]: Start difference. First operand 332 states and 491 transitions. Second operand has 29 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 10:59:18,055 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 542 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:59:27,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:59:27,033 INFO L93 Difference]: Finished difference Result 603 states and 922 transitions. [2022-12-14 10:59:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 10:59:27,033 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2022-12-14 10:59:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:59:27,035 INFO L225 Difference]: With dead ends: 603 [2022-12-14 10:59:27,035 INFO L226 Difference]: Without dead ends: 404 [2022-12-14 10:59:27,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 129.8s TimeCoverageRelationStatistics Valid=187, Invalid=1073, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 10:59:27,036 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 119 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:59:27,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 2665 Invalid, 2161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 10:59:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-12-14 10:59:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 345. [2022-12-14 10:59:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 263 states have (on average 1.494296577946768) internal successors, (393), 268 states have internal predecessors, (393), 59 states have call successors, (59), 22 states have call predecessors, (59), 22 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 10:59:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 510 transitions. [2022-12-14 10:59:27,289 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 510 transitions. Word has length 71 [2022-12-14 10:59:27,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:59:27,290 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 510 transitions. [2022-12-14 10:59:27,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 10:59:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 510 transitions. [2022-12-14 10:59:27,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 10:59:27,291 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:59:27,291 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] [2022-12-14 10:59:27,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:59:27,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:59:27,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:59:27,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:59:27,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1732910416, now seen corresponding path program 1 times [2022-12-14 10:59:27,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:59:27,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117454734] [2022-12-14 10:59:27,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:59:27,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:59:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:59:27,619 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 10:59:27,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:59:27,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117454734] [2022-12-14 10:59:27,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117454734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:59:27,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:59:27,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:59:27,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223540663] [2022-12-14 10:59:27,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:59:27,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:59:27,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:59:27,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:59:27,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:59:27,621 INFO L87 Difference]: Start difference. First operand 345 states and 510 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 10:59:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:59:27,975 INFO L93 Difference]: Finished difference Result 430 states and 608 transitions. [2022-12-14 10:59:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:59:27,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 74 [2022-12-14 10:59:27,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:59:27,977 INFO L225 Difference]: With dead ends: 430 [2022-12-14 10:59:27,977 INFO L226 Difference]: Without dead ends: 367 [2022-12-14 10:59:27,977 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 10:59:27,977 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 119 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:59:27,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 228 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:59:27,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-12-14 10:59:28,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2022-12-14 10:59:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 275 states have (on average 1.4727272727272727) internal successors, (405), 280 states have internal predecessors, (405), 63 states have call successors, (63), 29 states have call predecessors, (63), 28 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 10:59:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 530 transitions. [2022-12-14 10:59:28,255 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 530 transitions. Word has length 74 [2022-12-14 10:59:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:59:28,256 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 530 transitions. [2022-12-14 10:59:28,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 10:59:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 530 transitions. [2022-12-14 10:59:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 10:59:28,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:59:28,258 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2022-12-14 10:59:28,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:59:28,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:59:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:59:28,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1739781757, now seen corresponding path program 1 times [2022-12-14 10:59:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:59:28,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980828198] [2022-12-14 10:59:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:59:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:59:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:59:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 10:59:28,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:59:28,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980828198] [2022-12-14 10:59:28,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980828198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:59:28,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:59:28,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:59:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830533228] [2022-12-14 10:59:28,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:59:28,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:59:28,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:59:28,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:59:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:59:28,462 INFO L87 Difference]: Start difference. First operand 367 states and 530 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:59:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:59:28,967 INFO L93 Difference]: Finished difference Result 469 states and 642 transitions. [2022-12-14 10:59:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:59:28,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 105 [2022-12-14 10:59:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:59:28,969 INFO L225 Difference]: With dead ends: 469 [2022-12-14 10:59:28,969 INFO L226 Difference]: Without dead ends: 373 [2022-12-14 10:59:28,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:59:28,969 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 161 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:59:28,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 333 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:59:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-14 10:59:29,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-12-14 10:59:29,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 278 states have (on average 1.460431654676259) internal successors, (406), 283 states have internal predecessors, (406), 63 states have call successors, (63), 32 states have call predecessors, (63), 31 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 10:59:29,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 531 transitions. [2022-12-14 10:59:29,225 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 531 transitions. Word has length 105 [2022-12-14 10:59:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:59:29,225 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 531 transitions. [2022-12-14 10:59:29,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:59:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 531 transitions. [2022-12-14 10:59:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:59:29,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:59:29,227 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2022-12-14 10:59:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:59:29,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:59:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:59:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash -316310582, now seen corresponding path program 1 times [2022-12-14 10:59:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:59:29,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990017544] [2022-12-14 10:59:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:59:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:59:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:59:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-14 10:59:29,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:59:29,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990017544] [2022-12-14 10:59:29,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990017544] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:59:29,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824702930] [2022-12-14 10:59:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:59:29,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:59:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:59:29,726 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:59:29,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:59:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:59:29,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:59:29,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:59:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-14 10:59:29,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:59:30,050 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 10:59:30,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824702930] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:59:30,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [473874834] [2022-12-14 10:59:30,052 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 10:59:30,052 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:59:30,052 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:59:30,052 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:59:30,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:00:23,169 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:00:23,458 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 11:00:23,735 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:01:15,379 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 594 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:01:23,944 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 594 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:01:24,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [473874834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:01:24,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:01:24,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [15, 5, 5] total 42 [2022-12-14 11:01:24,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594969614] [2022-12-14 11:01:24,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:01:24,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:01:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:01:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:01:24,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1541, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 11:01:24,969 INFO L87 Difference]: Start difference. First operand 373 states and 531 transitions. Second operand has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 11:01:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:01:51,206 INFO L93 Difference]: Finished difference Result 753 states and 1118 transitions. [2022-12-14 11:01:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 11:01:51,206 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 113 [2022-12-14 11:01:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:01:51,208 INFO L225 Difference]: With dead ends: 753 [2022-12-14 11:01:51,208 INFO L226 Difference]: Without dead ends: 535 [2022-12-14 11:01:51,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 312 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 80.5s TimeCoverageRelationStatistics Valid=263, Invalid=2089, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 11:01:51,209 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 412 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:01:51,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 2394 Invalid, 2078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 11:01:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-12-14 11:01:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 415. [2022-12-14 11:01:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 317 states have (on average 1.4826498422712935) internal successors, (470), 323 states have internal predecessors, (470), 65 states have call successors, (65), 33 states have call predecessors, (65), 32 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:01:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 599 transitions. [2022-12-14 11:01:51,761 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 599 transitions. Word has length 113 [2022-12-14 11:01:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:01:51,761 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 599 transitions. [2022-12-14 11:01:51,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-12-14 11:01:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 599 transitions. [2022-12-14 11:01:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 11:01:51,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:01:51,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1] [2022-12-14 11:01:51,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:01:51,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 11:01:51,965 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:01:51,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:01:51,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1938125889, now seen corresponding path program 1 times [2022-12-14 11:01:51,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:01:51,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800111975] [2022-12-14 11:01:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:01:51,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:01:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:01:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 11:01:52,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:01:52,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800111975] [2022-12-14 11:01:52,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800111975] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:01:52,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522410260] [2022-12-14 11:01:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:01:52,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:01:52,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:01:52,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:01:52,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0eba33-c14c-4aa5-84e7-9397029530d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:01:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:01:52,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:01:52,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:01:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 11:01:52,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:01:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 11:01:52,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522410260] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:01:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [93892360] [2022-12-14 11:01:52,999 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-12-14 11:01:52,999 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:01:53,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:01:53,000 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:01:53,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:02:59,849 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:03:00,127 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 235 for LOIs [2022-12-14 11:03:00,185 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 437 for LOIs [2022-12-14 11:03:00,474 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 223 for LOIs [2022-12-14 11:03:00,534 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:03:00,831 INFO L180 IcfgInterpreter]: Interpretation finished