./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/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_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/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_6746121b-d823-4061-8faa-dd19fe7c9f0d/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 e931bf8fe4413228ccd3caf40302412c554842907046b600d394a87eb5d13e97 --- 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 14:47:34,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:47:34,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:47:34,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:47:34,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:47:34,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:47:34,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:47:34,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:47:34,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:47:34,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:47:34,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:47:34,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:47:34,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:47:34,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:47:34,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:47:34,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:47:34,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:47:34,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:47:34,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:47:34,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:47:34,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:47:34,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:47:34,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:47:34,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:47:34,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:47:34,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:47:34,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:47:34,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:47:34,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:47:34,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:47:34,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:47:34,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:47:34,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:47:34,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:47:34,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:47:34,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:47:34,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:47:34,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:47:34,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:47:34,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:47:34,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:47:34,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:47:34,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:47:34,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:47:34,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:47:34,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:47:34,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:47:34,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:47:34,494 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:47:34,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:47:34,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:47:34,496 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:47:34,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:47:34,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:47:34,496 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:47:34,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:47:34,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:47:34,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:47:34,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:47:34,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:47:34,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:47:34,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:47:34,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:47:34,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:34,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:47:34,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:47:34,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:47:34,500 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_6746121b-d823-4061-8faa-dd19fe7c9f0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e931bf8fe4413228ccd3caf40302412c554842907046b600d394a87eb5d13e97 [2022-12-14 14:47:34,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:47:34,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:47:34,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:47:34,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:47:34,709 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:47:34,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product30.cil.c [2022-12-14 14:47:37,374 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:47:37,612 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:47:37,613 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c [2022-12-14 14:47:37,628 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/data/4b55a41a7/b5c9c33f90bf4a31a1d0f09c9d8cb465/FLAGccbb80cdf [2022-12-14 14:47:37,640 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/data/4b55a41a7/b5c9c33f90bf4a31a1d0f09c9d8cb465 [2022-12-14 14:47:37,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:47:37,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:47:37,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:37,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:47:37,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:47:37,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:37" (1/1) ... [2022-12-14 14:47:37,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5243337b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:37, skipping insertion in model container [2022-12-14 14:47:37,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:37" (1/1) ... [2022-12-14 14:47:37,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:47:37,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:47:37,920 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:37,925 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:37,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:37,978 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:37,985 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,000 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,099 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_6746121b-d823-4061-8faa-dd19fe7c9f0d/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c[41508,41521] [2022-12-14 14:47:38,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,104 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:38,178 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:47:38,191 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,192 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,195 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,199 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,201 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,206 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,234 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_6746121b-d823-4061-8faa-dd19fe7c9f0d/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c[41508,41521] [2022-12-14 14:47:38,235 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,236 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:38,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:38,283 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:47:38,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38 WrapperNode [2022-12-14 14:47:38,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:38,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:38,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:47:38,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:47:38,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,345 INFO L138 Inliner]: procedures = 132, calls = 223, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 923 [2022-12-14 14:47:38,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:38,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:47:38,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:47:38,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:47:38,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:47:38,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:47:38,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:47:38,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:47:38,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (1/1) ... [2022-12-14 14:47:38,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:38,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:47:38,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:47:38,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:47:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 14:47:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 14:47:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 14:47:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 14:47:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 14:47:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 14:47:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:47:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:47:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:47:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:47:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 14:47:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 14:47:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:47:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:47:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 14:47:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 14:47:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 14:47:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 14:47:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:47:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:47:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:47:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:47:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:47:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:47:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:47:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:47:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 14:47:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 14:47:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 14:47:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 14:47:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:47:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:47:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:47:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:47:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:47:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:47:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 14:47:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 14:47:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:47:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:47:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 14:47:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 14:47:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:47:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:47:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:47:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:47:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:47:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:47:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:47:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:47:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:47:38,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:47:38,611 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:47:39,213 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:47:39,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:47:39,455 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:47:39,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:39 BoogieIcfgContainer [2022-12-14 14:47:39,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:47:39,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:47:39,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:47:39,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:47:39,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:47:37" (1/3) ... [2022-12-14 14:47:39,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279a34f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:39, skipping insertion in model container [2022-12-14 14:47:39,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:38" (2/3) ... [2022-12-14 14:47:39,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279a34f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:39, skipping insertion in model container [2022-12-14 14:47:39,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:39" (3/3) ... [2022-12-14 14:47:39,463 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product30.cil.c [2022-12-14 14:47:39,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:47:39,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:47:39,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:47:39,519 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;@6ebe5a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:47:39,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:47:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 14:47:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 14:47:39,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:39,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:39,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:39,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash -843996765, now seen corresponding path program 1 times [2022-12-14 14:47:39,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:39,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788352209] [2022-12-14 14:47:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:39,749 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 14:47:39,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:39,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788352209] [2022-12-14 14:47:39,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788352209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:39,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:39,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:47:39,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780488081] [2022-12-14 14:47:39,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:39,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:47:39,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:47:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:47:39,777 INFO L87 Difference]: Start difference. First operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:39,883 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2022-12-14 14:47:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:47:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 14:47:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:39,893 INFO L225 Difference]: With dead ends: 295 [2022-12-14 14:47:39,893 INFO L226 Difference]: Without dead ends: 186 [2022-12-14 14:47:39,896 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 14:47:39,898 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:39,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-14 14:47:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-12-14 14:47:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 112 states have internal predecessors, (142), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 14:47:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2022-12-14 14:47:39,951 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 64 [2022-12-14 14:47:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:39,952 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2022-12-14 14:47:39,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2022-12-14 14:47:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 14:47:39,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:39,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:39,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:47:39,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:39,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:39,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1217247742, now seen corresponding path program 1 times [2022-12-14 14:47:39,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:39,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312648415] [2022-12-14 14:47:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:39,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:40,138 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 14:47:40,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:40,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312648415] [2022-12-14 14:47:40,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312648415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:40,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:40,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:47:40,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206219824] [2022-12-14 14:47:40,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:47:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:47:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:47:40,143 INFO L87 Difference]: Start difference. First operand 186 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:40,250 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2022-12-14 14:47:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:47:40,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 14:47:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:40,254 INFO L225 Difference]: With dead ends: 291 [2022-12-14 14:47:40,254 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 14:47:40,256 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 14:47:40,258 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:40,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 14:47:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-12-14 14:47:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 14:47:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2022-12-14 14:47:40,282 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 65 [2022-12-14 14:47:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:40,283 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2022-12-14 14:47:40,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2022-12-14 14:47:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 14:47:40,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:40,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:40,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:47:40,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1598421365, now seen corresponding path program 1 times [2022-12-14 14:47:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:40,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27559312] [2022-12-14 14:47:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:40,425 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 14:47:40,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:40,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27559312] [2022-12-14 14:47:40,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27559312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:40,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:40,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:47:40,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741822640] [2022-12-14 14:47:40,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:40,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:47:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:47:40,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:47:40,428 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:40,524 INFO L93 Difference]: Finished difference Result 406 states and 557 transitions. [2022-12-14 14:47:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:47:40,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 14:47:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:40,527 INFO L225 Difference]: With dead ends: 406 [2022-12-14 14:47:40,528 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 14:47:40,529 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 14:47:40,530 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:40,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 438 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 14:47:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2022-12-14 14:47:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 146 states have internal predecessors, (197), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 14:47:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2022-12-14 14:47:40,556 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 70 [2022-12-14 14:47:40,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:40,556 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2022-12-14 14:47:40,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:47:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2022-12-14 14:47:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 14:47:40,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:40,559 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 14:47:40,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:47:40,559 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:40,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:40,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1536219666, now seen corresponding path program 1 times [2022-12-14 14:47:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:40,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144068563] [2022-12-14 14:47:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:40,760 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 14:47:40,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:40,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144068563] [2022-12-14 14:47:40,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144068563] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:47:40,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422601307] [2022-12-14 14:47:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:40,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:47:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:47:40,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:47:40,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:47:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:41,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:47:41,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:47:41,058 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 14:47:41,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:47:41,117 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 14:47:41,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422601307] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:47:41,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155995110] [2022-12-14 14:47:41,132 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 14:47:41,132 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:47:41,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:47:41,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:47:41,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:48:15,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:48:15,481 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 14:48:15,774 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 484 for LOIs [2022-12-14 14:48:51,276 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 452 for LOIs [2022-12-14 14:48:51,550 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 482 for LOIs [2022-12-14 14:49:11,344 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 440 for LOIs [2022-12-14 14:49:11,606 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 251 for LOIs [2022-12-14 14:49:11,676 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 256 for LOIs [2022-12-14 14:49:11,718 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-12-14 14:49:12,338 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:51:03,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [155995110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:03,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:51:03,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 14:51:03,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525907179] [2022-12-14 14:51:03,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:03,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 14:51:03,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 14:51:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2616, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 14:51:03,868 INFO L87 Difference]: Start difference. First operand 231 states and 324 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:51:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:40,808 INFO L93 Difference]: Finished difference Result 634 states and 972 transitions. [2022-12-14 14:51:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 14:51:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 14:51:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:40,812 INFO L225 Difference]: With dead ends: 634 [2022-12-14 14:51:40,812 INFO L226 Difference]: Without dead ends: 421 [2022-12-14 14:51:40,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 130.2s TimeCoverageRelationStatistics Valid=216, Invalid=3816, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 14:51:40,814 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 266 mSDsluCounter, 6206 mSDsCounter, 0 mSdLazyCounter, 6738 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 6770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 6738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:40,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 6479 Invalid, 6770 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 6738 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2022-12-14 14:51:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-12-14 14:51:40,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 325. [2022-12-14 14:51:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 223 states have (on average 1.4349775784753362) internal successors, (320), 226 states have internal predecessors, (320), 72 states have call successors, (72), 31 states have call predecessors, (72), 29 states have return successors, (71), 69 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 14:51:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 463 transitions. [2022-12-14 14:51:40,933 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 463 transitions. Word has length 71 [2022-12-14 14:51:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:40,933 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 463 transitions. [2022-12-14 14:51:40,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:51:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 463 transitions. [2022-12-14 14:51:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 14:51:40,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:40,934 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:51:40,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:51:41,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:51:41,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:51:41,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -114168106, now seen corresponding path program 1 times [2022-12-14 14:51:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:41,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765057977] [2022-12-14 14:51:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:41,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:41,214 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 14:51:41,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:41,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765057977] [2022-12-14 14:51:41,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765057977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:41,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:51:41,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:51:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360094491] [2022-12-14 14:51:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:41,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:51:41,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:41,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:51:41,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:51:41,217 INFO L87 Difference]: Start difference. First operand 325 states and 463 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:51:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:41,445 INFO L93 Difference]: Finished difference Result 723 states and 1060 transitions. [2022-12-14 14:51:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:51:41,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 14:51:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:41,450 INFO L225 Difference]: With dead ends: 723 [2022-12-14 14:51:41,450 INFO L226 Difference]: Without dead ends: 440 [2022-12-14 14:51:41,451 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 14:51:41,452 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 55 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:41,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 451 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:51:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-12-14 14:51:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 433. [2022-12-14 14:51:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 306 states have (on average 1.4705882352941178) internal successors, (450), 309 states have internal predecessors, (450), 97 states have call successors, (97), 31 states have call predecessors, (97), 29 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-14 14:51:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 643 transitions. [2022-12-14 14:51:41,603 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 643 transitions. Word has length 76 [2022-12-14 14:51:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:41,603 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 643 transitions. [2022-12-14 14:51:41,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:51:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 643 transitions. [2022-12-14 14:51:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 14:51:41,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:41,605 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:51:41,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:51:41,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:51:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:41,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1668020522, now seen corresponding path program 1 times [2022-12-14 14:51:41,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799964398] [2022-12-14 14:51:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:41,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:41,695 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 14:51:41,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:41,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799964398] [2022-12-14 14:51:41,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799964398] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:51:41,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409931656] [2022-12-14 14:51:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:41,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:51:41,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:51:41,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:51:41,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:51:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:41,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:51:41,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:51:41,924 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 14:51:41,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:51:41,966 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 14:51:41,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409931656] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:51:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [538261012] [2022-12-14 14:51:41,970 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 14:51:41,970 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:51:41,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:51:41,971 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:51:41,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:52:20,768 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:52:21,054 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:52:21,332 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:53:01,242 WARN L233 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 583 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:53:19,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [538261012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:53:19,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:53:19,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 14:53:19,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505513244] [2022-12-14 14:53:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:53:19,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:53:19,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:53:19,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:53:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:53:19,621 INFO L87 Difference]: Start difference. First operand 433 states and 643 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 14:53:29,115 WARN L233 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 517 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:53:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:53:50,291 INFO L93 Difference]: Finished difference Result 845 states and 1297 transitions. [2022-12-14 14:53:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 14:53:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-12-14 14:53:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:53:50,296 INFO L225 Difference]: With dead ends: 845 [2022-12-14 14:53:50,296 INFO L226 Difference]: Without dead ends: 542 [2022-12-14 14:53:50,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 81.5s TimeCoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 14:53:50,298 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 347 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:53:50,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 3692 Invalid, 2312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 14:53:50,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-12-14 14:53:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 489. [2022-12-14 14:53:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 359 states have (on average 1.4874651810584958) internal successors, (534), 363 states have internal predecessors, (534), 99 states have call successors, (99), 32 states have call predecessors, (99), 30 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2022-12-14 14:53:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 731 transitions. [2022-12-14 14:53:50,501 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 731 transitions. Word has length 77 [2022-12-14 14:53:50,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:53:50,501 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 731 transitions. [2022-12-14 14:53:50,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 14:53:50,502 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 731 transitions. [2022-12-14 14:53:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 14:53:50,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:53:50,503 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:53:50,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 14:53:50,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:53:50,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:53:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:53:50,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1506084890, now seen corresponding path program 1 times [2022-12-14 14:53:50,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:53:50,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481158480] [2022-12-14 14:53:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:50,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:53:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:50,858 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 14:53:50,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:53:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481158480] [2022-12-14 14:53:50,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481158480] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:53:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530749389] [2022-12-14 14:53:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:50,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:53:50,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:53:50,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:53:50,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:53:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:51,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:53:51,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:53:51,097 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 14:53:51,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:53:51,141 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 14:53:51,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530749389] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:53:51,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1908959591] [2022-12-14 14:53:51,144 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 14:53:51,145 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:53:51,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:53:51,145 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:53:51,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:55:19,919 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:55:20,204 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 14:55:20,504 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 437 for LOIs [2022-12-14 14:55:20,786 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 220 for LOIs [2022-12-14 14:55:20,844 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 14:55:21,136 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:56:26,542 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 526 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:56:26,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1908959591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:26,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:56:26,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 14:56:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506716527] [2022-12-14 14:56:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:26,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 14:56:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 14:56:26,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 14:56:26,546 INFO L87 Difference]: Start difference. First operand 489 states and 731 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 14:56:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:51,180 INFO L93 Difference]: Finished difference Result 892 states and 1366 transitions. [2022-12-14 14:56:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 14:56:51,180 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-12-14 14:56:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:51,182 INFO L225 Difference]: With dead ends: 892 [2022-12-14 14:56:51,183 INFO L226 Difference]: Without dead ends: 589 [2022-12-14 14:56:51,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 79.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 14:56:51,185 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 169 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 3511 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 3526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:51,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 3684 Invalid, 3526 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 3511 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 14:56:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-12-14 14:56:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 528. [2022-12-14 14:56:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 391 states have (on average 1.4808184143222507) internal successors, (579), 396 states have internal predecessors, (579), 103 states have call successors, (103), 35 states have call predecessors, (103), 33 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2022-12-14 14:56:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 784 transitions. [2022-12-14 14:56:51,437 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 784 transitions. Word has length 80 [2022-12-14 14:56:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:51,437 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 784 transitions. [2022-12-14 14:56:51,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 14:56:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 784 transitions. [2022-12-14 14:56:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 14:56:51,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:51,439 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:51,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:56:51,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:51,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:51,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1923437338, now seen corresponding path program 1 times [2022-12-14 14:56:51,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:51,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524400802] [2022-12-14 14:56:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:51,757 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 14:56:51,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:51,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524400802] [2022-12-14 14:56:51,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524400802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:51,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:51,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994965726] [2022-12-14 14:56:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:51,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:51,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:51,759 INFO L87 Difference]: Start difference. First operand 528 states and 784 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:56:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:52,115 INFO L93 Difference]: Finished difference Result 659 states and 936 transitions. [2022-12-14 14:56:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:52,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-12-14 14:56:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:52,119 INFO L225 Difference]: With dead ends: 659 [2022-12-14 14:56:52,119 INFO L226 Difference]: Without dead ends: 558 [2022-12-14 14:56:52,120 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 14:56:52,120 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 123 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 310 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 14:56:52,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 310 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:56:52,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-12-14 14:56:52,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 556. [2022-12-14 14:56:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 405 states have (on average 1.4641975308641975) internal successors, (593), 411 states have internal predecessors, (593), 109 states have call successors, (109), 44 states have call predecessors, (109), 41 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2022-12-14 14:56:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 810 transitions. [2022-12-14 14:56:52,376 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 810 transitions. Word has length 82 [2022-12-14 14:56:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:52,377 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 810 transitions. [2022-12-14 14:56:52,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:56:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 810 transitions. [2022-12-14 14:56:52,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-14 14:56:52,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:52,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:52,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:56:52,379 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:52,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash 65180094, now seen corresponding path program 1 times [2022-12-14 14:56:52,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:52,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531976065] [2022-12-14 14:56:52,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:52,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:52,472 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 14:56:52,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:52,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531976065] [2022-12-14 14:56:52,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531976065] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:56:52,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227499168] [2022-12-14 14:56:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:52,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:52,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:52,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:56:52,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6746121b-d823-4061-8faa-dd19fe7c9f0d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:56:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:52,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:56:52,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-14 14:56:52,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:56:52,857 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 14:56:52,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227499168] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:56:52,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1708859989] [2022-12-14 14:56:52,861 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-12-14 14:56:52,861 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:56:52,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:56:52,862 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:56:52,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:57:52,269 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:57:52,550 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 14:57:52,831 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 484 for LOIs [2022-12-14 14:58:52,535 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 452 for LOIs [2022-12-14 14:58:52,813 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 412 for LOIs [2022-12-14 14:59:09,023 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 215 for LOIs [2022-12-14 14:59:09,672 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 215 for LOIs [2022-12-14 14:59:09,706 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 219 for LOIs [2022-12-14 14:59:09,760 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 396 for LOIs [2022-12-14 14:59:10,179 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 219 for LOIs [2022-12-14 14:59:10,214 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 215 for LOIs [2022-12-14 14:59:10,242 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:01:27,058 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 642 DAG size of output: 455 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)