./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product33.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_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/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_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/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_4ab67ab1-5709-4736-9a2a-175c790099da/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 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 --- 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 14:26:42,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:26:42,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:26:42,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:26:42,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:26:42,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:26:42,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:26:42,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:26:42,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:26:42,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:26:42,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:26:42,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:26:42,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:26:42,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:26:42,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:26:42,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:26:42,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:26:42,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:26:42,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:26:42,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:26:42,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:26:42,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:26:42,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:26:42,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:26:42,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:26:42,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:26:42,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:26:42,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:26:42,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:26:42,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:26:42,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:26:42,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:26:42,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:26:42,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:26:42,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:26:42,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:26:42,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:26:42,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:26:42,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:26:42,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:26:42,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:26:42,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:26:42,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:26:42,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:26:42,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:26:42,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:26:42,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:26:42,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:26:42,529 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:26:42,529 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:26:42,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:26:42,531 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:26:42,531 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:26:42,531 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:26:42,531 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:26:42,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:26:42,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:26:42,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:26:42,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:26:42,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:26:42,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:26:42,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:26:42,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:26:42,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:26:42,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:42,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:26:42,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:26:42,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:26:42,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:26:42,536 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:26:42,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:26:42,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:26:42,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:26:42,536 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_4ab67ab1-5709-4736-9a2a-175c790099da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 [2022-11-23 14:26:42,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:26:42,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:26:42,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:26:42,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:26:42,889 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:26:42,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2022-11-23 14:26:45,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:26:46,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:26:46,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2022-11-23 14:26:46,309 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/data/38c95974a/551d8658f03a44b2900133b540f5dba6/FLAGc66427779 [2022-11-23 14:26:46,332 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/data/38c95974a/551d8658f03a44b2900133b540f5dba6 [2022-11-23 14:26:46,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:26:46,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:26:46,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:46,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:26:46,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:26:46,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:46" (1/1) ... [2022-11-23 14:26:46,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e7a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:46, skipping insertion in model container [2022-11-23 14:26:46,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:46" (1/1) ... [2022-11-23 14:26:46,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:26:46,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:26:46,792 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_4ab67ab1-5709-4736-9a2a-175c790099da/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2022-11-23 14:26:47,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:47,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:26:47,152 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_4ab67ab1-5709-4736-9a2a-175c790099da/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2022-11-23 14:26:47,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:26:47,351 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:26:47,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47 WrapperNode [2022-11-23 14:26:47,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:26:47,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:47,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:26:47,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:26:47,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,485 INFO L138 Inliner]: procedures = 135, calls = 233, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1084 [2022-11-23 14:26:47,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:26:47,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:26:47,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:26:47,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:26:47,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:26:47,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:26:47,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:26:47,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:26:47,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (1/1) ... [2022-11-23 14:26:47,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:26:47,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:47,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:26:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:26:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 14:26:47,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 14:26:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 14:26:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 14:26:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 14:26:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 14:26:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:26:47,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:26:47,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:26:47,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:26:47,665 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:26:47,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:26:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:26:47,666 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:26:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 14:26:47,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 14:26:47,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:26:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:26:47,671 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:26:47,671 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:26:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:26:47,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:26:47,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:26:47,673 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:26:47,673 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:26:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:26:47,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:26:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:26:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:26:47,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:26:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 14:26:47,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 14:26:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:26:47,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:26:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:26:47,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:26:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:26:47,676 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:26:47,676 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:26:47,676 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:26:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:26:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:26:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 14:26:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 14:26:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:26:47,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:26:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:26:47,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:26:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:26:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:26:47,679 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:26:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:26:47,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:26:48,002 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:26:48,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:26:49,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:26:49,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:26:49,676 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:26:49,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:49 BoogieIcfgContainer [2022-11-23 14:26:49,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:26:49,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:26:49,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:26:49,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:26:49,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:26:46" (1/3) ... [2022-11-23 14:26:49,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306a51af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:49, skipping insertion in model container [2022-11-23 14:26:49,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47" (2/3) ... [2022-11-23 14:26:49,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306a51af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:49, skipping insertion in model container [2022-11-23 14:26:49,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:49" (3/3) ... [2022-11-23 14:26:49,698 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product33.cil.c [2022-11-23 14:26:49,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:26:49,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:26:49,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:26:49,788 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;@3d2a5bb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:26:49,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:26:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-23 14:26:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:26:49,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:49,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:49,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:49,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1185764651, now seen corresponding path program 1 times [2022-11-23 14:26:49,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:49,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296035537] [2022-11-23 14:26:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:50,237 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 14:26:50,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:50,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296035537] [2022-11-23 14:26:50,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296035537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:50,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:50,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:26:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004272448] [2022-11-23 14:26:50,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:50,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:26:50,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:50,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:26:50,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:26:50,300 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:50,481 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2022-11-23 14:26:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:26:50,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-11-23 14:26:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:50,496 INFO L225 Difference]: With dead ends: 341 [2022-11-23 14:26:50,496 INFO L226 Difference]: Without dead ends: 209 [2022-11-23 14:26:50,501 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 14:26:50,505 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:50,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:26:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-23 14:26:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-11-23 14:26:50,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 14:26:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-11-23 14:26:50,588 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2022-11-23 14:26:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:50,589 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-11-23 14:26:50,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-11-23 14:26:50,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 14:26:50,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:50,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:50,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:26:50,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:50,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash -789631117, now seen corresponding path program 1 times [2022-11-23 14:26:50,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:50,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766531965] [2022-11-23 14:26:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:50,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:50,966 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 14:26:50,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:50,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766531965] [2022-11-23 14:26:50,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766531965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:50,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:50,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:26:50,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520367184] [2022-11-23 14:26:50,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:50,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:26:50,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:50,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:26:50,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:50,975 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:51,180 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2022-11-23 14:26:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:26:51,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-23 14:26:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:51,191 INFO L225 Difference]: With dead ends: 337 [2022-11-23 14:26:51,191 INFO L226 Difference]: Without dead ends: 211 [2022-11-23 14:26:51,197 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 14:26:51,198 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:51,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:26:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-23 14:26:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-23 14:26:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 14:26:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-11-23 14:26:51,243 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2022-11-23 14:26:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:51,243 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-11-23 14:26:51,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-11-23 14:26:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:26:51,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:51,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:51,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:26:51,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2054379677, now seen corresponding path program 1 times [2022-11-23 14:26:51,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:51,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614506720] [2022-11-23 14:26:51,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:51,436 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 14:26:51,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:51,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614506720] [2022-11-23 14:26:51,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614506720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:51,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:51,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:26:51,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11057838] [2022-11-23 14:26:51,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:51,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:26:51,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:26:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:51,444 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:51,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:51,634 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2022-11-23 14:26:51,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:26:51,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-23 14:26:51,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:51,639 INFO L225 Difference]: With dead ends: 452 [2022-11-23 14:26:51,639 INFO L226 Difference]: Without dead ends: 259 [2022-11-23 14:26:51,645 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 14:26:51,649 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 57 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:51,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 492 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:26:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-23 14:26:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2022-11-23 14:26:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-23 14:26:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2022-11-23 14:26:51,689 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2022-11-23 14:26:51,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:51,691 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2022-11-23 14:26:51,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:26:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2022-11-23 14:26:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 14:26:51,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:51,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:51,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:26:51,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:51,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:51,703 INFO L85 PathProgramCache]: Analyzing trace with hash 998407012, now seen corresponding path program 1 times [2022-11-23 14:26:51,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:51,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136130418] [2022-11-23 14:26:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:51,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:51,938 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 14:26:51,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:51,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136130418] [2022-11-23 14:26:51,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136130418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:51,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027047233] [2022-11-23 14:26:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:51,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:51,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:51,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:51,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:26:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:52,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:26:52,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:52,423 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 14:26:52,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:52,528 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 14:26:52,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027047233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:52,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1927097893] [2022-11-23 14:26:52,556 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 14:26:52,556 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:52,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:52,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:52,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:27:27,512 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:27:27,835 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-23 14:27:28,179 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2022-11-23 14:27:30,824 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-11-23 14:27:30,885 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-11-23 14:27:53,282 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-11-23 14:27:53,324 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-11-23 14:27:53,404 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-11-23 14:27:53,450 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-23 14:27:58,940 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:28:13,480 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:19,934 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:27,117 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:33,782 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:44,575 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 480 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:56,431 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 502 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:03,072 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 512 DAG size of output: 300 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:24,042 WARN L233 SmtUtils]: Spent 20.65s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:45,272 WARN L233 SmtUtils]: Spent 20.85s on a formula simplification. DAG size of input: 596 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:06,255 WARN L233 SmtUtils]: Spent 6.06s 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 14:30:13,871 WARN L233 SmtUtils]: Spent 6.99s 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 14:30:54,828 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 539 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:02,060 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 541 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:10,685 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 583 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:15,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1927097893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:15,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:31:15,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-11-23 14:31:15,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5056560] [2022-11-23 14:31:15,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:15,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 14:31:15,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:15,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 14:31:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2624, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 14:31:15,259 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:31:28,710 WARN L233 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 561 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:39,163 WARN L233 SmtUtils]: Spent 9.95s on a formula simplification. DAG size of input: 563 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:31:50,066 WARN L233 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 595 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:32:00,904 WARN L233 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 593 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:32:11,862 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 595 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:32:22,376 WARN L233 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 588 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:32:37,628 WARN L233 SmtUtils]: Spent 14.15s on a formula simplification. DAG size of input: 595 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:32:48,227 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 590 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:32,531 INFO L93 Difference]: Finished difference Result 653 states and 982 transitions. [2022-11-23 14:33:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-23 14:33:32,532 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-11-23 14:33:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:32,536 INFO L225 Difference]: With dead ends: 653 [2022-11-23 14:33:32,536 INFO L226 Difference]: Without dead ends: 417 [2022-11-23 14:33:32,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 302.5s TimeCoverageRelationStatistics Valid=229, Invalid=4061, Unknown=0, NotChecked=0, Total=4290 [2022-11-23 14:33:32,539 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 252 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 6604 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 6984 SdHoareTripleChecker+Invalid, 6639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 6604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:32,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 6984 Invalid, 6639 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [35 Valid, 6604 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time] [2022-11-23 14:33:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-11-23 14:33:32,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2022-11-23 14:33:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 240 states have (on average 1.4125) internal successors, (339), 243 states have internal predecessors, (339), 82 states have call successors, (82), 32 states have call predecessors, (82), 30 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-23 14:33:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 502 transitions. [2022-11-23 14:33:32,791 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 502 transitions. Word has length 71 [2022-11-23 14:33:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:32,793 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 502 transitions. [2022-11-23 14:33:32,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:33:32,793 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 502 transitions. [2022-11-23 14:33:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:33:32,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:32,797 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:33:32,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:33:33,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:33:33,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:33:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1192123605, now seen corresponding path program 1 times [2022-11-23 14:33:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:33,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224539738] [2022-11-23 14:33:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:33,196 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 14:33:33,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:33:33,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224539738] [2022-11-23 14:33:33,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224539738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:33:33,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226711603] [2022-11-23 14:33:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:33,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:33:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:33:33,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:33:33,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:33:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:33,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:33:33,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:33:33,567 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 14:33:33,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:33:33,630 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 14:33:33,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226711603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:33:33,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1817463521] [2022-11-23 14:33:33,634 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-23 14:33:33,634 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:33:33,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:33:33,635 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:33:33,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:34:13,110 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:34:13,410 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-23 14:34:13,713 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:34:27,832 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:34,132 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:40,827 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:47,179 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:34:57,846 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 480 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:35:09,611 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 502 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:35:16,242 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 512 DAG size of output: 300 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:35:36,692 WARN L233 SmtUtils]: Spent 20.13s on a formula simplification. DAG size of input: 589 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:35:57,242 WARN L233 SmtUtils]: Spent 20.19s on a formula simplification. DAG size of input: 591 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:06,526 WARN L233 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 572 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:15,793 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 568 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:23,625 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 570 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:31,396 WARN L233 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 566 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:36:35,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1817463521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:36:35,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:36:35,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:36:35,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267561455] [2022-11-23 14:36:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:36:35,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:36:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:36:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:36:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:36:35,475 INFO L87 Difference]: Start difference. First operand 353 states and 502 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-23 14:36:55,974 WARN L233 SmtUtils]: Spent 18.64s on a formula simplification. DAG size of input: 554 DAG size of output: 454 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:11,903 WARN L233 SmtUtils]: Spent 15.67s on a formula simplification. DAG size of input: 554 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:26,131 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 355 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:31,536 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 351 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:42,067 WARN L233 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 588 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:37:52,608 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 590 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:38:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:03,154 INFO L93 Difference]: Finished difference Result 673 states and 992 transitions. [2022-11-23 14:38:03,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 14:38:03,160 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-11-23 14:38:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:03,164 INFO L225 Difference]: With dead ends: 673 [2022-11-23 14:38:03,165 INFO L226 Difference]: Without dead ends: 437 [2022-11-23 14:38:03,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 216.2s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 14:38:03,167 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 240 mSDsluCounter, 3954 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:03,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 4216 Invalid, 2588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-11-23 14:38:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-23 14:38:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 366. [2022-11-23 14:38:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 250 states have (on average 1.412) internal successors, (353), 254 states have internal predecessors, (353), 84 states have call successors, (84), 33 states have call predecessors, (84), 31 states have return successors, (83), 80 states have call predecessors, (83), 83 states have call successors, (83) [2022-11-23 14:38:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 520 transitions. [2022-11-23 14:38:03,373 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 520 transitions. Word has length 77 [2022-11-23 14:38:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:03,374 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 520 transitions. [2022-11-23 14:38:03,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-23 14:38:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 520 transitions. [2022-11-23 14:38:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-23 14:38:03,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:03,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:03,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:03,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:38:03,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:38:03,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash -39431252, now seen corresponding path program 1 times [2022-11-23 14:38:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:03,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592707152] [2022-11-23 14:38:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:03,762 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 14:38:03,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:03,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592707152] [2022-11-23 14:38:03,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592707152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:38:03,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130065452] [2022-11-23 14:38:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:03,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:38:03,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:38:03,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:38:03,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab67ab1-5709-4736-9a2a-175c790099da/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:38:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:04,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:38:04,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:04,132 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 14:38:04,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:38:04,201 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 14:38:04,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130065452] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:38:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011892634] [2022-11-23 14:38:04,205 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-23 14:38:04,206 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:38:04,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:38:04,206 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:38:04,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:38:47,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:38:47,538 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-11-23 14:38:47,605 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-11-23 14:38:47,681 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-11-23 14:38:48,030 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-23 14:38:48,336 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:39:02,619 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:09,040 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:16,149 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:22,811 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:33,702 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 480 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:45,648 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 502 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:39:52,364 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 512 DAG size of output: 300 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:40:03,341 WARN L233 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 636 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)