./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW --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 c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 --- 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-4e7fbc6 [2022-11-23 14:25:39,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:25:39,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:25:39,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:25:39,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:25:39,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:25:39,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:25:39,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:25:39,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:25:39,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:25:39,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:25:39,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:25:39,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:25:39,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:25:39,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:25:39,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:25:39,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:25:39,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:25:39,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:25:39,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:25:39,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:25:39,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:25:39,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:25:39,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:25:39,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:25:39,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:25:39,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:25:39,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:25:39,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:25:39,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:25:39,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:25:39,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:25:39,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:25:39,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:25:39,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:25:39,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:25:39,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:25:39,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:25:39,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:25:39,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:25:39,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:25:39,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:25:39,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:25:39,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:25:39,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:25:39,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:25:39,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:25:39,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:25:39,456 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:25:39,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:25:39,456 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:25:39,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:25:39,457 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:25:39,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:25:39,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:25:39,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:25:39,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:25:39,459 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:25:39,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:25:39,459 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:25:39,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:25:39,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:25:39,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:25:39,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:25:39,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:25:39,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:25:39,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:25:39,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:25:39,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:25:39,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:25:39,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:25:39,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:25:39,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:25:39,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:25:39,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:39,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:25:39,465 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:25:39,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:25:39,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:25:39,466 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:25:39,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:25:39,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:25:39,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:25:39,467 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_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 [2022-11-23 14:25:39,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:25:39,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:25:39,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:25:39,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:25:39,784 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:25:39,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-11-23 14:25:42,728 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:25:43,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:25:43,045 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-11-23 14:25:43,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/data/96f6b9f60/2008555164d14844afc0cd1644ebc2f3/FLAG82aa24aaf [2022-11-23 14:25:43,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/data/96f6b9f60/2008555164d14844afc0cd1644ebc2f3 [2022-11-23 14:25:43,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:25:43,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:25:43,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:43,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:25:43,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:25:43,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:43" (1/1) ... [2022-11-23 14:25:43,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da3656a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:43, skipping insertion in model container [2022-11-23 14:25:43,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:43" (1/1) ... [2022-11-23 14:25:43,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:25:43,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:25:43,857 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_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-11-23 14:25:43,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:43,881 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:25:44,029 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_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-11-23 14:25:44,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:44,059 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:25:44,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44 WrapperNode [2022-11-23 14:25:44,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:44,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:44,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:25:44,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:25:44,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,175 INFO L138 Inliner]: procedures = 137, calls = 247, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1148 [2022-11-23 14:25:44,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:44,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:25:44,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:25:44,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:25:44,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:25:44,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:25:44,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:25:44,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:25:44,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (1/1) ... [2022-11-23 14:25:44,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:44,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:44,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:25:44,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:25:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 14:25:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 14:25:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:25:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:25:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 14:25:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 14:25:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:25:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:25:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 14:25:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 14:25:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:25:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:25:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:25:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:25:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:25:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:25:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:25:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:25:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:25:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:25:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 14:25:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 14:25:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:25:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:25:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:25:44,419 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:25:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:25:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:25:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:25:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:25:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:25:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:25:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:25:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:25:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:25:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:25:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 14:25:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 14:25:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:25:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:25:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:25:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:25:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:25:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:25:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:25:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:25:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:25:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:25:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:25:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:25:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 14:25:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 14:25:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:25:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:25:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:25:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:25:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:25:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:25:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:25:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:25:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:25:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:25:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:25:44,746 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:25:44,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:25:45,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:25:46,502 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:25:46,502 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:25:46,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:46 BoogieIcfgContainer [2022-11-23 14:25:46,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:25:46,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:25:46,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:25:46,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:25:46,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:25:43" (1/3) ... [2022-11-23 14:25:46,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533fe74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:46, skipping insertion in model container [2022-11-23 14:25:46,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:44" (2/3) ... [2022-11-23 14:25:46,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533fe74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:46, skipping insertion in model container [2022-11-23 14:25:46,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:46" (3/3) ... [2022-11-23 14:25:46,514 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2022-11-23 14:25:46,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:25:46,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:25:46,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:46,596 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;@c6bc75b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:46,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:25:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:25:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 14:25:46,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:46,617 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, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:46,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1350226867, now seen corresponding path program 1 times [2022-11-23 14:25:46,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:46,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144119752] [2022-11-23 14:25:46,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:46,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:47,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:47,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144119752] [2022-11-23 14:25:47,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144119752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:47,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:47,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:25:47,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840473138] [2022-11-23 14:25:47,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:47,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:25:47,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:25:47,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:25:47,097 INFO L87 Difference]: Start difference. First operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:47,344 INFO L93 Difference]: Finished difference Result 392 states and 521 transitions. [2022-11-23 14:25:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:25:47,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-23 14:25:47,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:47,358 INFO L225 Difference]: With dead ends: 392 [2022-11-23 14:25:47,358 INFO L226 Difference]: Without dead ends: 239 [2022-11-23 14:25:47,363 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 [2022-11-23 14:25:47,367 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:47,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-23 14:25:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-23 14:25:47,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 138 states have internal predecessors, (169), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-23 14:25:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2022-11-23 14:25:47,430 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 71 [2022-11-23 14:25:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:47,431 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2022-11-23 14:25:47,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2022-11-23 14:25:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 14:25:47,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:47,436 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:47,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:25:47,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:47,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash -585574988, now seen corresponding path program 1 times [2022-11-23 14:25:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:47,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248602462] [2022-11-23 14:25:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:47,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:47,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248602462] [2022-11-23 14:25:47,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248602462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:47,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:47,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509256775] [2022-11-23 14:25:47,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:47,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:47,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:47,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:47,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:47,767 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:47,941 INFO L93 Difference]: Finished difference Result 388 states and 506 transitions. [2022-11-23 14:25:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:47,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-23 14:25:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:47,954 INFO L225 Difference]: With dead ends: 388 [2022-11-23 14:25:47,954 INFO L226 Difference]: Without dead ends: 241 [2022-11-23 14:25:47,960 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 [2022-11-23 14:25:47,963 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:47,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-23 14:25:47,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-11-23 14:25:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-23 14:25:47,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2022-11-23 14:25:47,989 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 72 [2022-11-23 14:25:47,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:47,989 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2022-11-23 14:25:47,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2022-11-23 14:25:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:25:47,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:47,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:47,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:25:47,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:47,993 INFO L85 PathProgramCache]: Analyzing trace with hash -733935069, now seen corresponding path program 1 times [2022-11-23 14:25:47,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:47,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649868121] [2022-11-23 14:25:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:47,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:48,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:48,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649868121] [2022-11-23 14:25:48,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649868121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:48,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:48,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:48,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363890977] [2022-11-23 14:25:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:48,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:48,103 INFO L87 Difference]: Start difference. First operand 241 states and 320 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:48,263 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2022-11-23 14:25:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:48,264 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-23 14:25:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:48,267 INFO L225 Difference]: With dead ends: 517 [2022-11-23 14:25:48,267 INFO L226 Difference]: Without dead ends: 294 [2022-11-23 14:25:48,271 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 [2022-11-23 14:25:48,276 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 59 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:48,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 558 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:25:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-23 14:25:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 289. [2022-11-23 14:25:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 174 states have internal predecessors, (226), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2022-11-23 14:25:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2022-11-23 14:25:48,308 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 77 [2022-11-23 14:25:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:48,309 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2022-11-23 14:25:48,309 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:25:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2022-11-23 14:25:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-23 14:25:48,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:48,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:48,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:25:48,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1074708616, now seen corresponding path program 1 times [2022-11-23 14:25:48,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:48,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785458072] [2022-11-23 14:25:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:48,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:48,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:48,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785458072] [2022-11-23 14:25:48,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785458072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:25:48,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536009468] [2022-11-23 14:25:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:48,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:48,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:48,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:48,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:25:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:48,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:25:48,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:48,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:25:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:25:49,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536009468] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:25:49,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1168790615] [2022-11-23 14:25:49,125 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-23 14:25:49,125 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:25:49,129 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:25:49,134 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:25:49,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:26:24,981 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:26:25,270 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-23 14:26:27,266 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-23 14:26:27,305 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-23 14:26:27,608 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-11-23 14:26:31,245 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-11-23 14:26:31,282 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-11-23 14:26:36,780 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-11-23 14:26:36,850 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-11-23 14:26:36,911 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-23 14:26:41,698 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-11-23 14:26:41,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:27:34,525 WARN L233 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:27:55,242 WARN L233 SmtUtils]: Spent 20.40s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:05,648 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 567 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:11,095 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 563 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:22,052 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 477 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:29,276 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 499 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:08,738 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 475 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:14,800 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 477 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:29,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1168790615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:29,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:29:29,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-23 14:29:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271612719] [2022-11-23 14:29:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:29,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-23 14:29:29,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:29,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-23 14:29:29,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3272, Unknown=0, NotChecked=0, Total=3422 [2022-11-23 14:29:29,049 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 14:29:43,626 WARN L233 SmtUtils]: Spent 11.17s on a formula simplification. DAG size of input: 479 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:49,742 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 509 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:55,864 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 511 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:01,917 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 507 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:08,324 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 517 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:19,460 WARN L233 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 577 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:31,189 WARN L233 SmtUtils]: Spent 10.29s on a formula simplification. DAG size of input: 590 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:31,766 INFO L93 Difference]: Finished difference Result 724 states and 1076 transitions. [2022-11-23 14:31:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-23 14:31:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-11-23 14:31:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:31,776 INFO L225 Difference]: With dead ends: 724 [2022-11-23 14:31:31,777 INFO L226 Difference]: Without dead ends: 453 [2022-11-23 14:31:31,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 245.6s TimeCoverageRelationStatistics Valid=243, Invalid=5013, Unknown=0, NotChecked=0, Total=5256 [2022-11-23 14:31:31,781 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 252 mSDsluCounter, 8055 mSDsCounter, 0 mSdLazyCounter, 10024 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 10059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 10024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:31,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 8366 Invalid, 10059 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [35 Valid, 10024 Invalid, 0 Unknown, 0 Unchecked, 43.5s Time] [2022-11-23 14:31:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-23 14:31:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 372. [2022-11-23 14:31:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 236 states have (on average 1.3389830508474576) internal successors, (316), 240 states have internal predecessors, (316), 99 states have call successors, (99), 39 states have call predecessors, (99), 36 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:31:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 513 transitions. [2022-11-23 14:31:31,972 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 513 transitions. Word has length 78 [2022-11-23 14:31:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:31,976 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 513 transitions. [2022-11-23 14:31:31,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 14:31:31,977 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 513 transitions. [2022-11-23 14:31:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-23 14:31:31,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:31,985 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, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:31,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:31:32,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:31:32,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1653731716, now seen corresponding path program 1 times [2022-11-23 14:31:32,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:32,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624329516] [2022-11-23 14:31:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:32,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:31:32,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:32,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624329516] [2022-11-23 14:31:32,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624329516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:32,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:32,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:31:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767312034] [2022-11-23 14:31:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:31:32,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:32,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:31:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:31:32,322 INFO L87 Difference]: Start difference. First operand 372 states and 513 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:31:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:32,696 INFO L93 Difference]: Finished difference Result 821 states and 1167 transitions. [2022-11-23 14:31:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:31:32,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-11-23 14:31:32,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:32,702 INFO L225 Difference]: With dead ends: 821 [2022-11-23 14:31:32,702 INFO L226 Difference]: Without dead ends: 496 [2022-11-23 14:31:32,704 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 [2022-11-23 14:31:32,705 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 57 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:32,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 575 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:31:32,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-23 14:31:32,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 489. [2022-11-23 14:31:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 322 states have (on average 1.3944099378881987) internal successors, (449), 326 states have internal predecessors, (449), 130 states have call successors, (130), 39 states have call predecessors, (130), 36 states have return successors, (129), 125 states have call predecessors, (129), 129 states have call successors, (129) [2022-11-23 14:31:32,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 708 transitions. [2022-11-23 14:31:32,909 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 708 transitions. Word has length 83 [2022-11-23 14:31:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:32,910 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 708 transitions. [2022-11-23 14:31:32,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:31:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 708 transitions. [2022-11-23 14:31:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 14:31:32,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:32,913 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:32,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:31:32,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:32,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:32,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1393507940, now seen corresponding path program 1 times [2022-11-23 14:31:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:32,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856857554] [2022-11-23 14:31:32,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:32,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:31:33,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:33,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856857554] [2022-11-23 14:31:33,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856857554] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:31:33,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038582745] [2022-11-23 14:31:33,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:33,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:31:33,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:31:33,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:31:33,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:31:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:33,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:31:33,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:31:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:31:33,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:31:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:31:33,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038582745] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:31:33,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1375340327] [2022-11-23 14:31:33,480 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:31:33,480 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:31:33,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:31:33,481 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:31:33,481 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:32:18,419 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:32:18,828 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-23 14:32:19,126 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:32:37,224 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:14,888 WARN L233 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:30,089 WARN L233 SmtUtils]: Spent 14.90s on a formula simplification. DAG size of input: 583 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:45,553 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 553 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:53,886 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 584 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:54,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1375340327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:33:54,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:33:54,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:33:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705788796] [2022-11-23 14:33:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:33:54,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:33:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:33:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:33:54,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:33:54,100 INFO L87 Difference]: Start difference. First operand 489 states and 708 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-23 14:34:06,130 WARN L233 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 508 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:12,014 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 513 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:17,995 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 519 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:23,891 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 515 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:29,920 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 521 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:35,934 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 517 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:42,119 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 522 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:54,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:54,752 INFO L93 Difference]: Finished difference Result 937 states and 1399 transitions. [2022-11-23 14:34:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 14:34:54,753 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-11-23 14:34:54,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:54,756 INFO L225 Difference]: With dead ends: 937 [2022-11-23 14:34:54,757 INFO L226 Difference]: Without dead ends: 566 [2022-11-23 14:34:54,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 146.1s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 14:34:54,759 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 161 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:54,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3983 Invalid, 2134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-23 14:34:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-11-23 14:34:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 501. [2022-11-23 14:34:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 332 states have (on average 1.394578313253012) internal successors, (463), 336 states have internal predecessors, (463), 131 states have call successors, (131), 40 states have call predecessors, (131), 37 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-23 14:34:54,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 724 transitions. [2022-11-23 14:34:54,993 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 724 transitions. Word has length 84 [2022-11-23 14:34:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:54,994 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 724 transitions. [2022-11-23 14:34:54,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-23 14:34:54,994 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 724 transitions. [2022-11-23 14:34:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 14:34:54,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:54,997 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:55,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:34:55,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:34:55,205 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:34:55,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:55,205 INFO L85 PathProgramCache]: Analyzing trace with hash 61968666, now seen corresponding path program 1 times [2022-11-23 14:34:55,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:55,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728251987] [2022-11-23 14:34:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:55,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:34:55,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:55,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728251987] [2022-11-23 14:34:55,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728251987] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:34:55,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993395715] [2022-11-23 14:34:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:34:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:34:55,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:34:55,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:34:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:55,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:34:55,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:34:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:34:55,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:34:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:34:55,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993395715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:34:55,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [856851605] [2022-11-23 14:34:55,854 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-23 14:34:55,855 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:34:55,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:34:55,856 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:34:55,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:35:33,780 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:35:34,067 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-23 14:35:34,129 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 422 for LOIs [2022-11-23 14:35:34,400 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-11-23 14:35:34,460 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-23 14:35:34,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:35:52,861 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:30,235 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:44,092 WARN L233 SmtUtils]: Spent 13.51s on a formula simplification. DAG size of input: 623 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:58,880 WARN L233 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 533 DAG size of output: 315 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:10,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [856851605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:10,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:37:10,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-23 14:37:10,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626949489] [2022-11-23 14:37:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:10,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 14:37:10,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:10,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 14:37:10,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:37:10,224 INFO L87 Difference]: Start difference. First operand 501 states and 724 transitions. Second operand has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-11-23 14:37:19,316 WARN L233 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 564 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:25,263 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 508 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:31,279 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 512 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:37,461 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 514 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:38:03,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:03,914 INFO L93 Difference]: Finished difference Result 958 states and 1430 transitions. [2022-11-23 14:38:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 14:38:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 87 [2022-11-23 14:38:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:03,922 INFO L225 Difference]: With dead ends: 958 [2022-11-23 14:38:03,922 INFO L226 Difference]: Without dead ends: 587 [2022-11-23 14:38:03,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 130.2s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-11-23 14:38:03,925 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 133 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 4013 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:03,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 4616 Invalid, 4031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 4013 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-11-23 14:38:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-23 14:38:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 537. [2022-11-23 14:38:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 362 states have (on average 1.3950276243093922) internal successors, (505), 366 states have internal predecessors, (505), 134 states have call successors, (134), 43 states have call predecessors, (134), 40 states have return successors, (133), 129 states have call predecessors, (133), 133 states have call successors, (133) [2022-11-23 14:38:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 772 transitions. [2022-11-23 14:38:04,233 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 772 transitions. Word has length 87 [2022-11-23 14:38:04,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:04,234 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 772 transitions. [2022-11-23 14:38:04,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-11-23 14:38:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 772 transitions. [2022-11-23 14:38:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 14:38:04,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:04,238 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, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:04,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 14:38:04,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 14:38:04,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:38:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash 5529302, now seen corresponding path program 1 times [2022-11-23 14:38:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:04,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651818086] [2022-11-23 14:38:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:38:04,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:04,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651818086] [2022-11-23 14:38:04,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651818086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:38:04,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541033939] [2022-11-23 14:38:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:04,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:38:04,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:38:04,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:38:04,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5b21fe-7ba9-4b30-abd2-fdb0e30d7364/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:38:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:05,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:38:05,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:38:05,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:38:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:38:05,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541033939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:38:05,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1354454993] [2022-11-23 14:38:05,150 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-23 14:38:05,150 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:38:05,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:38:05,151 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:38:05,152 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:38:51,791 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:38:52,087 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs