./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/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_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/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_c516da6b-0cfb-4341-8ac5-07e90661afba/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 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 --- 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 09:46:07,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:46:07,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:46:07,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:46:07,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:46:07,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:46:07,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:46:07,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:46:07,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:46:07,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:46:07,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:46:07,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:46:07,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:46:07,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:46:07,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:46:07,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:46:07,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:46:07,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:46:07,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:46:07,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:46:07,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:46:07,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:46:07,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:46:07,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:46:07,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:46:07,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:46:07,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:46:07,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:46:07,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:46:07,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:46:07,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:46:07,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:46:07,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:46:07,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:46:07,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:46:07,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:46:07,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:46:07,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:46:07,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:46:07,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:46:07,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:46:07,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:46:07,364 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:46:07,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:46:07,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:46:07,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:46:07,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:46:07,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:46:07,365 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:46:07,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:46:07,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:46:07,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:46:07,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:46:07,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:46:07,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:46:07,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:46:07,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:46:07,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:46:07,369 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:46:07,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:46:07,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:46:07,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:46:07,369 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_c516da6b-0cfb-4341-8ac5-07e90661afba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 [2022-12-14 09:46:07,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:46:07,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:46:07,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:46:07,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:46:07,551 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:46:07,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2022-12-14 09:46:10,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:46:10,368 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:46:10,368 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2022-12-14 09:46:10,383 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/data/007be4f49/49e29717a43b4134a4b99974c834a7ef/FLAG0f043a974 [2022-12-14 09:46:10,395 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/data/007be4f49/49e29717a43b4134a4b99974c834a7ef [2022-12-14 09:46:10,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:46:10,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:46:10,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:46:10,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:46:10,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:46:10,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:46:10" (1/1) ... [2022-12-14 09:46:10,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fff084c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:10, skipping insertion in model container [2022-12-14 09:46:10,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:46:10" (1/1) ... [2022-12-14 09:46:10,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:46:10,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:46:10,598 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,606 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,762 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,786 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_c516da6b-0cfb-4341-8ac5-07e90661afba/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2022-12-14 09:46:10,808 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,809 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,813 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:46:10,882 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:46:10,892 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,894 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,931 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,933 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,939 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,945 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_c516da6b-0cfb-4341-8ac5-07e90661afba/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2022-12-14 09:46:10,948 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,949 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,951 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:46:10,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:46:11,001 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:46:11,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11 WrapperNode [2022-12-14 09:46:11,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:46:11,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:46:11,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:46:11,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:46:11,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,069 INFO L138 Inliner]: procedures = 126, calls = 201, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 994 [2022-12-14 09:46:11,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:46:11,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:46:11,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:46:11,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:46:11,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:46:11,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:46:11,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:46:11,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:46:11,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (1/1) ... [2022-12-14 09:46:11,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:46:11,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:11,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:46:11,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:46:11,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 09:46:11,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 09:46:11,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 09:46:11,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 09:46:11,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:46:11,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:46:11,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:46:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:46:11,206 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:46:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:46:11,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 09:46:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 09:46:11,206 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:46:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:46:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:46:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:46:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:46:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:46:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:46:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:46:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:46:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:46:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:46:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:46:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:46:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:46:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 09:46:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 09:46:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:46:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:46:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:46:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:46:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:46:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:46:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:46:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:46:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:46:11,364 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:46:11,366 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:46:11,883 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:46:12,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:46:12,152 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:46:12,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:46:12 BoogieIcfgContainer [2022-12-14 09:46:12,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:46:12,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:46:12,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:46:12,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:46:12,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:46:10" (1/3) ... [2022-12-14 09:46:12,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da6cf9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:46:12, skipping insertion in model container [2022-12-14 09:46:12,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:46:11" (2/3) ... [2022-12-14 09:46:12,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da6cf9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:46:12, skipping insertion in model container [2022-12-14 09:46:12,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:46:12" (3/3) ... [2022-12-14 09:46:12,161 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2022-12-14 09:46:12,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:46:12,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:46:12,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:46:12,218 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;@644dc29a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:46:12,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:46:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 96 states have internal predecessors, (126), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 09:46:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 09:46:12,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:12,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:12,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 812921743, now seen corresponding path program 1 times [2022-12-14 09:46:12,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:12,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421059536] [2022-12-14 09:46:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:12,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:12,441 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 09:46:12,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:12,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421059536] [2022-12-14 09:46:12,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421059536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:12,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:12,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:46:12,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800581244] [2022-12-14 09:46:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:12,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:46:12,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:46:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:46:12,470 INFO L87 Difference]: Start difference. First operand has 155 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 96 states have internal predecessors, (126), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:12,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:12,567 INFO L93 Difference]: Finished difference Result 227 states and 310 transitions. [2022-12-14 09:46:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:46:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 09:46:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:12,576 INFO L225 Difference]: With dead ends: 227 [2022-12-14 09:46:12,576 INFO L226 Difference]: Without dead ends: 152 [2022-12-14 09:46:12,579 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 09:46:12,581 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:12,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-12-14 09:46:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-12-14 09:46:12,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 09:46:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 209 transitions. [2022-12-14 09:46:12,618 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 209 transitions. Word has length 56 [2022-12-14 09:46:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:12,619 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 209 transitions. [2022-12-14 09:46:12,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 209 transitions. [2022-12-14 09:46:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 09:46:12,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:12,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:12,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:46:12,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2091095293, now seen corresponding path program 1 times [2022-12-14 09:46:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:12,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861024366] [2022-12-14 09:46:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:12,753 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 09:46:12,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:12,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861024366] [2022-12-14 09:46:12,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861024366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:12,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:12,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:46:12,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608582558] [2022-12-14 09:46:12,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:12,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:46:12,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:46:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:46:12,757 INFO L87 Difference]: Start difference. First operand 152 states and 209 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:12,846 INFO L93 Difference]: Finished difference Result 223 states and 298 transitions. [2022-12-14 09:46:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:46:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 09:46:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:12,848 INFO L225 Difference]: With dead ends: 223 [2022-12-14 09:46:12,848 INFO L226 Difference]: Without dead ends: 154 [2022-12-14 09:46:12,849 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 09:46:12,849 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:12,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 359 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-12-14 09:46:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-12-14 09:46:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 92 states have (on average 1.326086956521739) internal successors, (122), 95 states have internal predecessors, (122), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 09:46:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2022-12-14 09:46:12,860 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 211 transitions. Word has length 57 [2022-12-14 09:46:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:12,860 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 211 transitions. [2022-12-14 09:46:12,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 211 transitions. [2022-12-14 09:46:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 09:46:12,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:12,862 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:46:12,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1229626104, now seen corresponding path program 1 times [2022-12-14 09:46:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709509911] [2022-12-14 09:46:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:12,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:12,928 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 09:46:12,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:12,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709509911] [2022-12-14 09:46:12,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709509911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:12,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:12,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:46:12,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856531371] [2022-12-14 09:46:12,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:12,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:46:12,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:12,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:46:12,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:46:12,931 INFO L87 Difference]: Start difference. First operand 154 states and 211 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:13,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:13,019 INFO L93 Difference]: Finished difference Result 338 states and 481 transitions. [2022-12-14 09:46:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:46:13,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 09:46:13,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:13,022 INFO L225 Difference]: With dead ends: 338 [2022-12-14 09:46:13,022 INFO L226 Difference]: Without dead ends: 202 [2022-12-14 09:46:13,023 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 09:46:13,024 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 57 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:13,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 377 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-14 09:46:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 197. [2022-12-14 09:46:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 127 states have internal predecessors, (175), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-12-14 09:46:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 286 transitions. [2022-12-14 09:46:13,045 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 286 transitions. Word has length 62 [2022-12-14 09:46:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:13,045 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 286 transitions. [2022-12-14 09:46:13,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 09:46:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 286 transitions. [2022-12-14 09:46:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 09:46:13,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:13,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:13,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:46:13,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:13,050 INFO L85 PathProgramCache]: Analyzing trace with hash -660274469, now seen corresponding path program 1 times [2022-12-14 09:46:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:13,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512871296] [2022-12-14 09:46:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:13,182 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 09:46:13,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:13,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512871296] [2022-12-14 09:46:13,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512871296] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:13,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278853872] [2022-12-14 09:46:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:13,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:13,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:13,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:13,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:46:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:13,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:46:13,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:13,436 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 09:46:13,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:46:13,490 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 09:46:13,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278853872] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:46:13,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [767846191] [2022-12-14 09:46:13,505 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 09:46:13,506 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:46:13,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:46:13,513 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:46:13,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:46:38,953 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:46:39,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:46:39,611 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:47:25,678 WARN L233 SmtUtils]: Spent 11.30s on a formula simplification. DAG size of input: 582 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:31,445 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 568 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:36,727 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 570 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:42,239 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 566 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:42,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [767846191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:42,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:47:42,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 09:47:42,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811271665] [2022-12-14 09:47:42,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:42,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 09:47:42,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:42,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 09:47:42,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:47:42,950 INFO L87 Difference]: Start difference. First operand 197 states and 286 transitions. Second operand has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 09:47:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:49,988 INFO L93 Difference]: Finished difference Result 473 states and 733 transitions. [2022-12-14 09:47:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 09:47:49,988 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2022-12-14 09:47:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:49,990 INFO L225 Difference]: With dead ends: 473 [2022-12-14 09:47:49,990 INFO L226 Difference]: Without dead ends: 294 [2022-12-14 09:47:49,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 63.3s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:47:49,991 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 103 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:49,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 2855 Invalid, 2026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 09:47:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-12-14 09:47:50,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 220. [2022-12-14 09:47:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 149 states have internal predecessors, (208), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-12-14 09:47:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 319 transitions. [2022-12-14 09:47:50,078 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 319 transitions. Word has length 63 [2022-12-14 09:47:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:50,078 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 319 transitions. [2022-12-14 09:47:50,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-12-14 09:47:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 319 transitions. [2022-12-14 09:47:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 09:47:50,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:50,080 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] [2022-12-14 09:47:50,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:47:50,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 09:47:50,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:47:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1245123392, now seen corresponding path program 1 times [2022-12-14 09:47:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:50,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873541085] [2022-12-14 09:47:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:47:50,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:50,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873541085] [2022-12-14 09:47:50,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873541085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:50,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:47:50,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:47:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12403224] [2022-12-14 09:47:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:50,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:47:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:47:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:47:50,361 INFO L87 Difference]: Start difference. First operand 220 states and 319 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:47:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:50,641 INFO L93 Difference]: Finished difference Result 533 states and 802 transitions. [2022-12-14 09:47:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:47:50,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-12-14 09:47:50,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:50,643 INFO L225 Difference]: With dead ends: 533 [2022-12-14 09:47:50,643 INFO L226 Difference]: Without dead ends: 337 [2022-12-14 09:47:50,643 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 09:47:50,644 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 55 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 375 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:47:50,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-12-14 09:47:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 332. [2022-12-14 09:47:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 233 states have (on average 1.4763948497854078) internal successors, (344), 236 states have internal predecessors, (344), 81 states have call successors, (81), 17 states have call predecessors, (81), 17 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-12-14 09:47:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 505 transitions. [2022-12-14 09:47:50,863 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 505 transitions. Word has length 68 [2022-12-14 09:47:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:50,863 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 505 transitions. [2022-12-14 09:47:50,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:47:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 505 transitions. [2022-12-14 09:47:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 09:47:50,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:50,868 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:47:50,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:47:50,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:47:50,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash -697361856, now seen corresponding path program 1 times [2022-12-14 09:47:50,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:50,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815714405] [2022-12-14 09:47:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:50,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:51,016 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 09:47:51,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:51,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815714405] [2022-12-14 09:47:51,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815714405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:47:51,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959500926] [2022-12-14 09:47:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:51,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:47:51,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:47:51,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:47:51,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:47:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:51,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:47:51,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:47:51,225 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 09:47:51,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:47:51,264 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 09:47:51,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959500926] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:47:51,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [669736722] [2022-12-14 09:47:51,268 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 09:47:51,268 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:47:51,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:47:51,269 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:47:51,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:48:30,322 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:48:30,646 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 09:48:30,961 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:49:17,648 WARN L233 SmtUtils]: Spent 12.03s on a formula simplification. DAG size of input: 588 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:49:42,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [669736722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:42,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:49:42,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 09:49:42,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742446498] [2022-12-14 09:49:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:42,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:49:42,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:42,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:49:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:49:42,050 INFO L87 Difference]: Start difference. First operand 332 states and 505 transitions. Second operand has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 09:49:51,921 WARN L233 SmtUtils]: Spent 8.84s on a formula simplification. DAG size of input: 572 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:50:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:13,224 INFO L93 Difference]: Finished difference Result 758 states and 1210 transitions. [2022-12-14 09:50:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 09:50:13,225 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2022-12-14 09:50:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:13,227 INFO L225 Difference]: With dead ends: 758 [2022-12-14 09:50:13,227 INFO L226 Difference]: Without dead ends: 489 [2022-12-14 09:50:13,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 95.2s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 09:50:13,229 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 228 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:13,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 2547 Invalid, 1937 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 09:50:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-12-14 09:50:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 394. [2022-12-14 09:50:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 291 states have (on average 1.52233676975945) internal successors, (443), 296 states have internal predecessors, (443), 84 states have call successors, (84), 18 states have call predecessors, (84), 18 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 09:50:13,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 610 transitions. [2022-12-14 09:50:13,462 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 610 transitions. Word has length 69 [2022-12-14 09:50:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:13,462 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 610 transitions. [2022-12-14 09:50:13,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 09:50:13,462 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 610 transitions. [2022-12-14 09:50:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 09:50:13,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:13,464 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:50:13,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:50:13,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 09:50:13,666 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:50:13,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2103567220, now seen corresponding path program 1 times [2022-12-14 09:50:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:13,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144119880] [2022-12-14 09:50:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:13,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:13,773 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 09:50:13,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:13,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144119880] [2022-12-14 09:50:13,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144119880] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:50:13,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040406301] [2022-12-14 09:50:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:13,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:50:13,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:50:13,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:50:13,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:50:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:13,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:50:13,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:50:14,005 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 09:50:14,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:50:14,044 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 09:50:14,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040406301] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:50:14,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1016133231] [2022-12-14 09:50:14,048 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 09:50:14,048 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:50:14,049 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:50:14,049 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:50:14,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:51:36,094 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:51:36,420 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 09:51:36,721 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 09:51:36,784 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:51:37,112 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 09:51:37,409 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 427 for LOIs [2022-12-14 09:52:02,200 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 407 for LOIs [2022-12-14 09:52:02,455 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 425 for LOIs [2022-12-14 09:52:08,365 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 395 for LOIs [2022-12-14 09:52:08,600 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 227 for LOIs [2022-12-14 09:52:08,696 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:52:57,231 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 529 DAG size of output: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:53:57,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1016133231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:57,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:53:57,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 09:53:57,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565440824] [2022-12-14 09:53:57,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:57,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 09:53:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:57,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 09:53:57,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2819, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 09:53:57,931 INFO L87 Difference]: Start difference. First operand 394 states and 610 transitions. Second operand has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:54:40,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:54:40,589 INFO L93 Difference]: Finished difference Result 830 states and 1316 transitions. [2022-12-14 09:54:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-14 09:54:40,590 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 72 [2022-12-14 09:54:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:54:40,592 INFO L225 Difference]: With dead ends: 830 [2022-12-14 09:54:40,592 INFO L226 Difference]: Without dead ends: 561 [2022-12-14 09:54:40,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 132.9s TimeCoverageRelationStatistics Valid=259, Invalid=4297, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 09:54:40,594 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 248 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 6782 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 6824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 6782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:54:40,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 4991 Invalid, 6824 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [42 Valid, 6782 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2022-12-14 09:54:40,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-12-14 09:54:40,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 483. [2022-12-14 09:54:40,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 363 states have (on average 1.5151515151515151) internal successors, (550), 370 states have internal predecessors, (550), 95 states have call successors, (95), 26 states have call predecessors, (95), 24 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 09:54:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 739 transitions. [2022-12-14 09:54:40,915 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 739 transitions. Word has length 72 [2022-12-14 09:54:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:54:40,916 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 739 transitions. [2022-12-14 09:54:40,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:54:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 739 transitions. [2022-12-14 09:54:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 09:54:40,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:54:40,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:54:40,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 09:54:41,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:41,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:54:41,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:54:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1105803462, now seen corresponding path program 1 times [2022-12-14 09:54:41,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:54:41,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404299395] [2022-12-14 09:54:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:54:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:41,196 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 09:54:41,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:54:41,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404299395] [2022-12-14 09:54:41,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404299395] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:54:41,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580056754] [2022-12-14 09:54:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:41,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:41,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:54:41,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:54:41,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:54:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:41,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:54:41,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:54:41,385 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 09:54:41,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:54:41,421 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 09:54:41,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580056754] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:54:41,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693579298] [2022-12-14 09:54:41,424 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 09:54:41,424 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:54:41,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:54:41,425 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:54:41,425 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:55:22,833 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:55:23,150 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:55:23,473 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 09:55:25,225 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 09:55:25,268 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-12-14 09:55:29,534 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 231 for LOIs [2022-12-14 09:55:29,571 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 09:55:34,799 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:47,347 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 564 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:56:52,823 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 560 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:56:58,354 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 566 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:57:26,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1693579298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:26,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:57:26,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 09:57:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937056329] [2022-12-14 09:57:26,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:26,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 09:57:26,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:26,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 09:57:26,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2565, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 09:57:26,848 INFO L87 Difference]: Start difference. First operand 483 states and 739 transitions. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:58:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:53,775 INFO L93 Difference]: Finished difference Result 893 states and 1393 transitions. [2022-12-14 09:58:53,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 09:58:53,776 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 71 [2022-12-14 09:58:53,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:53,778 INFO L225 Difference]: With dead ends: 893 [2022-12-14 09:58:53,778 INFO L226 Difference]: Without dead ends: 624 [2022-12-14 09:58:53,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 184.4s TimeCoverageRelationStatistics Valid=673, Invalid=5807, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 09:58:53,780 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 272 mSDsluCounter, 3780 mSDsCounter, 0 mSdLazyCounter, 4948 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 4968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:53,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 3975 Invalid, 4968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 4948 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-12-14 09:58:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-12-14 09:58:54,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 532. [2022-12-14 09:58:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 403 states have (on average 1.5037220843672456) internal successors, (606), 411 states have internal predecessors, (606), 101 states have call successors, (101), 31 states have call predecessors, (101), 27 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2022-12-14 09:58:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 807 transitions. [2022-12-14 09:58:54,204 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 807 transitions. Word has length 71 [2022-12-14 09:58:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:54,204 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 807 transitions. [2022-12-14 09:58:54,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:58:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 807 transitions. [2022-12-14 09:58:54,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 09:58:54,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:54,205 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:58:54,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:58:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:58:54,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:58:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash -828454878, now seen corresponding path program 1 times [2022-12-14 09:58:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:54,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427918253] [2022-12-14 09:58:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 09:58:54,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:54,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427918253] [2022-12-14 09:58:54,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427918253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:58:54,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:58:54,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:58:54,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061012642] [2022-12-14 09:58:54,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:58:54,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:58:54,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:58:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:58:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:58:54,507 INFO L87 Difference]: Start difference. First operand 532 states and 807 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:58:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:55,028 INFO L93 Difference]: Finished difference Result 621 states and 915 transitions. [2022-12-14 09:58:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:58:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2022-12-14 09:58:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:55,030 INFO L225 Difference]: With dead ends: 621 [2022-12-14 09:58:55,030 INFO L226 Difference]: Without dead ends: 554 [2022-12-14 09:58:55,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:58:55,031 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 119 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:55,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 242 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:58:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-12-14 09:58:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 552. [2022-12-14 09:58:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 413 states have (on average 1.4915254237288136) internal successors, (616), 422 states have internal predecessors, (616), 105 states have call successors, (105), 38 states have call predecessors, (105), 33 states have return successors, (104), 94 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-14 09:58:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 825 transitions. [2022-12-14 09:58:55,456 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 825 transitions. Word has length 74 [2022-12-14 09:58:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:55,456 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 825 transitions. [2022-12-14 09:58:55,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:58:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 825 transitions. [2022-12-14 09:58:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 09:58:55,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:55,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:58:55,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:58:55,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:58:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1929692095, now seen corresponding path program 1 times [2022-12-14 09:58:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:55,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847809267] [2022-12-14 09:58:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:55,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 09:58:55,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:55,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847809267] [2022-12-14 09:58:55,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847809267] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:58:55,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549569190] [2022-12-14 09:58:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:55,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:58:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:58:55,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:58:55,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c516da6b-0cfb-4341-8ac5-07e90661afba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:58:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:55,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:58:55,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:58:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 09:58:55,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:58:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 09:58:55,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549569190] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:58:55,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1249036678] [2022-12-14 09:58:55,837 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 09:58:55,837 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:58:55,838 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:58:55,838 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:58:55,838 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:00:06,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 10:00:06,649 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:00:06,969 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs