./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/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_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/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_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/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 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- 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 08:57:30,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:57:30,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:57:30,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:57:30,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:57:30,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:57:30,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:57:30,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:57:30,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:57:30,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:57:30,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:57:30,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:57:30,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:57:30,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:57:30,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:57:30,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:57:30,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:57:30,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:57:30,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:57:30,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:57:30,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:57:30,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:57:30,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:57:30,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:57:30,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:57:30,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:57:30,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:57:30,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:57:30,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:57:30,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:57:30,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:57:30,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:57:30,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:57:30,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:57:30,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:57:30,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:57:30,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:57:30,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:57:30,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:57:30,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:57:30,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:57:30,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:57:30,579 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:57:30,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:57:30,579 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:57:30,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:57:30,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:57:30,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:57:30,580 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:57:30,580 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:57:30,580 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:57:30,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:57:30,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:57:30,582 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:57:30,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:57:30,582 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:57:30,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:57:30,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:57:30,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:57:30,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:57:30,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:57:30,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:57:30,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:57:30,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:57:30,585 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_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2022-12-14 08:57:30,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:57:30,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:57:30,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:57:30,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:57:30,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:57:30,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2022-12-14 08:57:33,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:57:33,531 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:57:33,531 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2022-12-14 08:57:33,543 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/data/52a3dab34/4b7b192bc9f04bf58d4b1e4cafa23513/FLAGc8475df02 [2022-12-14 08:57:33,554 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/data/52a3dab34/4b7b192bc9f04bf58d4b1e4cafa23513 [2022-12-14 08:57:33,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:57:33,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:57:33,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:57:33,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:57:33,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:57:33,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:57:33" (1/1) ... [2022-12-14 08:57:33,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730c63ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:33, skipping insertion in model container [2022-12-14 08:57:33,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:57:33" (1/1) ... [2022-12-14 08:57:33,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:57:33,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:57:33,811 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,815 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,821 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,896 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,905 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,905 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,908 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,921 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:33,937 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_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2022-12-14 08:57:33,991 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:57:34,063 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:57:34,089 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,090 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,093 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,110 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,112 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,112 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,113 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,117 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,121 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_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2022-12-14 08:57:34,144 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:57:34,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:57:34,183 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:57:34,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34 WrapperNode [2022-12-14 08:57:34,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:57:34,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:57:34,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:57:34,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:57:34,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,240 INFO L138 Inliner]: procedures = 131, calls = 225, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1095 [2022-12-14 08:57:34,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:57:34,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:57:34,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:57:34,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:57:34,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:57:34,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:57:34,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:57:34,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:57:34,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (1/1) ... [2022-12-14 08:57:34,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:57:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:57:34,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:57:34,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:57:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 08:57:34,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 08:57:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:57:34,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:57:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 08:57:34,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 08:57:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:57:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:57:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:57:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:57:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 08:57:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:57:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:57:34,508 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:57:34,510 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:57:35,112 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:57:35,486 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:57:35,486 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:57:35,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:57:35 BoogieIcfgContainer [2022-12-14 08:57:35,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:57:35,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:57:35,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:57:35,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:57:35,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:57:33" (1/3) ... [2022-12-14 08:57:35,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302c8f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:57:35, skipping insertion in model container [2022-12-14 08:57:35,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:34" (2/3) ... [2022-12-14 08:57:35,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302c8f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:57:35, skipping insertion in model container [2022-12-14 08:57:35,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:57:35" (3/3) ... [2022-12-14 08:57:35,496 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2022-12-14 08:57:35,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:57:35,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:57:35,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:57:35,560 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;@75342388, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:57:35,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:57:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 08:57:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 08:57:35,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:57:35,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:57:35,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:57:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:57:35,580 INFO L85 PathProgramCache]: Analyzing trace with hash 240088237, now seen corresponding path program 1 times [2022-12-14 08:57:35,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:57:35,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861059581] [2022-12-14 08:57:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:57:35,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:57:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:57:35,833 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 08:57:35,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:57:35,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861059581] [2022-12-14 08:57:35,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861059581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:57:35,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:57:35,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:57:35,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149736866] [2022-12-14 08:57:35,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:57:35,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:57:35,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:57:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:57:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:57:35,862 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:57:35,985 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2022-12-14 08:57:35,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:57:35,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 08:57:35,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:57:35,998 INFO L225 Difference]: With dead ends: 308 [2022-12-14 08:57:35,999 INFO L226 Difference]: Without dead ends: 197 [2022-12-14 08:57:36,002 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 08:57:36,004 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:57:36,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:57:36,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-14 08:57:36,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-12-14 08:57:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 08:57:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2022-12-14 08:57:36,051 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2022-12-14 08:57:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:57:36,052 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2022-12-14 08:57:36,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2022-12-14 08:57:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 08:57:36,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:57:36,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:57:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:57:36,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:57:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:57:36,057 INFO L85 PathProgramCache]: Analyzing trace with hash 919550111, now seen corresponding path program 1 times [2022-12-14 08:57:36,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:57:36,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129571839] [2022-12-14 08:57:36,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:57:36,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:57:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:57:36,228 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 08:57:36,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:57:36,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129571839] [2022-12-14 08:57:36,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129571839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:57:36,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:57:36,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:57:36,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051755888] [2022-12-14 08:57:36,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:57:36,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:57:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:57:36,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:57:36,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:57:36,231 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:57:36,348 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2022-12-14 08:57:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:57:36,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 08:57:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:57:36,351 INFO L225 Difference]: With dead ends: 304 [2022-12-14 08:57:36,351 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 08:57:36,353 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 08:57:36,354 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:57:36,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:57:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 08:57:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-12-14 08:57:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 08:57:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2022-12-14 08:57:36,372 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2022-12-14 08:57:36,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:57:36,372 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2022-12-14 08:57:36,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2022-12-14 08:57:36,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 08:57:36,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:57:36,375 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] [2022-12-14 08:57:36,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:57:36,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:57:36,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:57:36,376 INFO L85 PathProgramCache]: Analyzing trace with hash -341330821, now seen corresponding path program 1 times [2022-12-14 08:57:36,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:57:36,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484095098] [2022-12-14 08:57:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:57:36,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:57:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:57:36,476 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 08:57:36,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:57:36,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484095098] [2022-12-14 08:57:36,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484095098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:57:36,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:57:36,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:57:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239551960] [2022-12-14 08:57:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:57:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:57:36,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:57:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:57:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:57:36,479 INFO L87 Difference]: Start difference. First operand 199 states and 268 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:57:36,594 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2022-12-14 08:57:36,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:57:36,595 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 08:57:36,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:57:36,597 INFO L225 Difference]: With dead ends: 433 [2022-12-14 08:57:36,597 INFO L226 Difference]: Without dead ends: 252 [2022-12-14 08:57:36,598 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 08:57:36,599 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 59 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:57:36,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 467 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:57:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-12-14 08:57:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2022-12-14 08:57:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 08:57:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2022-12-14 08:57:36,622 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2022-12-14 08:57:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:57:36,623 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2022-12-14 08:57:36,623 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:57:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2022-12-14 08:57:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 08:57:36,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:57:36,626 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] [2022-12-14 08:57:36,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:57:36,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:57:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:57:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1392267279, now seen corresponding path program 1 times [2022-12-14 08:57:36,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:57:36,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621949784] [2022-12-14 08:57:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:57:36,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:57:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:57:36,775 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 08:57:36,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:57:36,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621949784] [2022-12-14 08:57:36,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621949784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:57:36,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468643132] [2022-12-14 08:57:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:57:36,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:57:36,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:57:36,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:57:36,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:57:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:57:36,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:57:36,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:57:37,042 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 08:57:37,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:57:37,105 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 08:57:37,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468643132] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:57:37,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2098849399] [2022-12-14 08:57:37,126 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 08:57:37,126 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:57:37,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:57:37,135 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:57:37,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:58:12,542 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:58:12,823 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:58:13,107 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:58:51,690 WARN L233 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 598 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:58:58,890 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 600 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:59:11,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2098849399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:11,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:59:11,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 08:59:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080767731] [2022-12-14 08:59:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:11,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 08:59:11,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 08:59:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 08:59:11,277 INFO L87 Difference]: Start difference. First operand 247 states and 351 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:59:17,819 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 560 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:59:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:30,449 INFO L93 Difference]: Finished difference Result 545 states and 809 transitions. [2022-12-14 08:59:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 08:59:30,450 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-12-14 08:59:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:30,451 INFO L225 Difference]: With dead ends: 545 [2022-12-14 08:59:30,451 INFO L226 Difference]: Without dead ends: 316 [2022-12-14 08:59:30,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:59:30,453 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 150 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:30,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3133 Invalid, 1801 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 08:59:30,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-12-14 08:59:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 275. [2022-12-14 08:59:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 174 states have (on average 1.3735632183908046) internal successors, (239), 178 states have internal predecessors, (239), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 08:59:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 390 transitions. [2022-12-14 08:59:30,533 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 390 transitions. Word has length 70 [2022-12-14 08:59:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:30,533 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 390 transitions. [2022-12-14 08:59:30,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:59:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 390 transitions. [2022-12-14 08:59:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:59:30,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:30,535 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:30,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:59:30,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:30,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:59:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1557427379, now seen corresponding path program 1 times [2022-12-14 08:59:30,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:30,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891393322] [2022-12-14 08:59:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:30,854 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 08:59:30,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:30,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891393322] [2022-12-14 08:59:30,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891393322] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:59:30,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506428013] [2022-12-14 08:59:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:30,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:30,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:30,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:59:30,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:59:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:31,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:59:31,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:59:31,066 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 08:59:31,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:59:31,109 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 08:59:31,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506428013] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:59:31,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1595621573] [2022-12-14 08:59:31,114 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 08:59:31,114 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:59:31,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:59:31,115 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:59:31,115 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:00:14,518 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:00:14,803 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 09:00:15,078 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:00:57,692 WARN L233 SmtUtils]: Spent 12.49s on a formula simplification. DAG size of input: 593 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:01:10,122 WARN L233 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 595 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:01:34,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1595621573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:34,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:01:34,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 09:01:34,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907014172] [2022-12-14 09:01:34,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:34,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:01:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:01:34,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:01:34,425 INFO L87 Difference]: Start difference. First operand 275 states and 390 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:01:46,277 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 552 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:01:57,634 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 552 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:02:18,548 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 561 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:02:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:02:29,648 INFO L93 Difference]: Finished difference Result 600 states and 888 transitions. [2022-12-14 09:02:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 09:02:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-12-14 09:02:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:02:29,651 INFO L225 Difference]: With dead ends: 600 [2022-12-14 09:02:29,651 INFO L226 Difference]: Without dead ends: 371 [2022-12-14 09:02:29,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 126.4s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 09:02:29,652 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 138 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:02:29,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 3511 Invalid, 2280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 09:02:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-12-14 09:02:29,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 289. [2022-12-14 09:02:29,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 186 states have (on average 1.3763440860215055) internal successors, (256), 190 states have internal predecessors, (256), 77 states have call successors, (77), 25 states have call predecessors, (77), 25 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 09:02:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 409 transitions. [2022-12-14 09:02:29,770 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 409 transitions. Word has length 76 [2022-12-14 09:02:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:02:29,771 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 409 transitions. [2022-12-14 09:02:29,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:02:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 409 transitions. [2022-12-14 09:02:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 09:02:29,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:02:29,772 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:02:29,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:02:29,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:02:29,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:02:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:02:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1268758931, now seen corresponding path program 1 times [2022-12-14 09:02:29,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:02:29,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748288665] [2022-12-14 09:02:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:02:29,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:02:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:02:30,077 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 09:02:30,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:02:30,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748288665] [2022-12-14 09:02:30,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748288665] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:02:30,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873954715] [2022-12-14 09:02:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:02:30,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:02:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:02:30,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:02:30,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:02:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:02:30,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:02:30,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:02:30,298 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 09:02:30,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:02:30,340 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 09:02:30,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873954715] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:02:30,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [276656403] [2022-12-14 09:02:30,344 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 09:02:30,344 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:02:30,344 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:02:30,345 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:02:30,345 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:03:50,354 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 09:03:50,632 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 09:03:50,928 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-12-14 09:03:50,987 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 09:03:51,045 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:03:51,327 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:04:37,883 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 545 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:04:47,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [276656403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:04:47,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 09:04:47,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099087728] [2022-12-14 09:04:47,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 09:04:47,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 09:04:47,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:04:47,136 INFO L87 Difference]: Start difference. First operand 289 states and 409 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 09:05:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:14,537 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2022-12-14 09:05:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 09:05:14,538 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-12-14 09:05:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:14,540 INFO L225 Difference]: With dead ends: 621 [2022-12-14 09:05:14,540 INFO L226 Difference]: Without dead ends: 392 [2022-12-14 09:05:14,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 72.3s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 09:05:14,541 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 158 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:14,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 3645 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 09:05:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-12-14 09:05:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 325. [2022-12-14 09:05:14,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 216 states have (on average 1.3796296296296295) internal successors, (298), 220 states have internal predecessors, (298), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-12-14 09:05:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 457 transitions. [2022-12-14 09:05:14,705 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 457 transitions. Word has length 79 [2022-12-14 09:05:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:14,705 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 457 transitions. [2022-12-14 09:05:14,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 09:05:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 457 transitions. [2022-12-14 09:05:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 09:05:14,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:14,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:14,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 09:05:14,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:05:14,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:14,909 INFO L85 PathProgramCache]: Analyzing trace with hash 552556235, now seen corresponding path program 1 times [2022-12-14 09:05:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:14,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688246910] [2022-12-14 09:05:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:14,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:15,004 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 09:05:15,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:15,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688246910] [2022-12-14 09:05:15,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688246910] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:05:15,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986391425] [2022-12-14 09:05:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:15,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:05:15,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:05:15,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:05:15,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:05:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:15,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:05:15,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:05:15,218 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 09:05:15,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:05:15,264 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 09:05:15,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986391425] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:05:15,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683535260] [2022-12-14 09:05:15,267 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 09:05:15,268 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:05:15,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:05:15,268 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:05:15,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:05:57,491 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 09:05:57,766 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 09:05:58,042 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:06:42,544 WARN L233 SmtUtils]: Spent 14.09s on a formula simplification. DAG size of input: 612 DAG size of output: 479 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:06:49,759 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 614 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:07:25,692 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 573 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:07:31,135 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 569 DAG size of output: 433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:07:35,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1683535260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:35,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:07:35,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 09:07:35,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010987533] [2022-12-14 09:07:35,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:35,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 09:07:35,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:35,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 09:07:35,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:07:35,698 INFO L87 Difference]: Start difference. First operand 325 states and 457 transitions. Second operand has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:07:42,568 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 572 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:08:22,403 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 566 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:08:29,639 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 502 DAG size of output: 471 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:08:36,387 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 564 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:08:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:41,880 INFO L93 Difference]: Finished difference Result 626 states and 917 transitions. [2022-12-14 09:08:41,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 09:08:41,880 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2022-12-14 09:08:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:41,882 INFO L225 Difference]: With dead ends: 626 [2022-12-14 09:08:41,882 INFO L226 Difference]: Without dead ends: 397 [2022-12-14 09:08:41,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 155.1s TimeCoverageRelationStatistics Valid=385, Invalid=1871, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 09:08:41,883 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 167 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:41,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 3907 Invalid, 2608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 09:08:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-12-14 09:08:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 345. [2022-12-14 09:08:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 236 states have (on average 1.3898305084745763) internal successors, (328), 240 states have internal predecessors, (328), 80 states have call successors, (80), 28 states have call predecessors, (80), 28 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-12-14 09:08:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 487 transitions. [2022-12-14 09:08:42,105 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 487 transitions. Word has length 78 [2022-12-14 09:08:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:42,105 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 487 transitions. [2022-12-14 09:08:42,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:08:42,106 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 487 transitions. [2022-12-14 09:08:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 09:08:42,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:42,107 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:08:42,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:08:42,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:08:42,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:08:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:42,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1265097004, now seen corresponding path program 1 times [2022-12-14 09:08:42,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:42,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329768322] [2022-12-14 09:08:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:42,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:08:42,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:42,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329768322] [2022-12-14 09:08:42,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329768322] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:08:42,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536603354] [2022-12-14 09:08:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:42,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:08:42,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:08:42,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:08:42,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:08:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:42,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:08:42,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:08:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:08:42,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:08:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:08:42,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536603354] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:08:42,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1868076272] [2022-12-14 09:08:42,647 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 09:08:42,647 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:08:42,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:08:42,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:08:42,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:09:34,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 09:09:34,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 09:09:34,829 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:10:10,917 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 557 DAG size of output: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:10:16,415 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 557 DAG size of output: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:10:43,502 WARN L233 SmtUtils]: Spent 9.24s on a formula simplification. DAG size of input: 602 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:10:44,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1868076272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:44,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:10:44,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [5, 5, 5] total 30 [2022-12-14 09:10:44,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486066480] [2022-12-14 09:10:44,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:44,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:10:44,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:44,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:10:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:10:44,363 INFO L87 Difference]: Start difference. First operand 345 states and 487 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:11:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:06,843 INFO L93 Difference]: Finished difference Result 726 states and 1075 transitions. [2022-12-14 09:11:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 09:11:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 81 [2022-12-14 09:11:06,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:06,845 INFO L225 Difference]: With dead ends: 726 [2022-12-14 09:11:06,845 INFO L226 Difference]: Without dead ends: 482 [2022-12-14 09:11:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 85.2s TimeCoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:11:06,846 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 250 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 3249 Invalid, 2178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 09:11:06,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-12-14 09:11:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 358. [2022-12-14 09:11:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 247 states have (on average 1.388663967611336) internal successors, (343), 251 states have internal predecessors, (343), 81 states have call successors, (81), 29 states have call predecessors, (81), 29 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2022-12-14 09:11:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 504 transitions. [2022-12-14 09:11:07,119 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 504 transitions. Word has length 81 [2022-12-14 09:11:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:07,119 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 504 transitions. [2022-12-14 09:11:07,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:11:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 504 transitions. [2022-12-14 09:11:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 09:11:07,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:11:07,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:11:07,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:11:07,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:11:07,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:11:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:11:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1703259143, now seen corresponding path program 1 times [2022-12-14 09:11:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:11:07,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099923988] [2022-12-14 09:11:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:07,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:11:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:11:07,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:11:07,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099923988] [2022-12-14 09:11:07,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099923988] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:11:07,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360698951] [2022-12-14 09:11:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:11:07,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:11:07,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:11:07,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:11:07,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be0f52e-4d8c-4e7c-a36f-723f9912d62f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:11:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:11:07,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:11:07,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:11:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:11:07,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:11:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:11:07,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360698951] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:11:07,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [687141473] [2022-12-14 09:11:07,681 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 09:11:07,681 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:11:07,682 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:11:07,682 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:11:07,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs