./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI --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 db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 --- 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-5e519f3 [2022-11-03 01:48:30,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:48:31,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:48:31,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:48:31,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:48:31,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:48:31,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:48:31,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:48:31,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:48:31,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:48:31,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:48:31,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:48:31,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:48:31,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:48:31,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:48:31,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:48:31,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:48:31,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:48:31,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:48:31,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:48:31,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:48:31,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:48:31,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:48:31,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:48:31,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:48:31,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:48:31,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:48:31,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:48:31,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:48:31,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:48:31,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:48:31,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:48:31,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:48:31,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:48:31,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:48:31,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:48:31,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:48:31,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:48:31,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:48:31,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:48:31,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:48:31,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:48:31,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:48:31,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:48:31,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:48:31,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:48:31,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:48:31,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:48:31,129 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:48:31,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:48:31,129 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:48:31,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:48:31,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:48:31,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:48:31,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:48:31,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:48:31,131 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:48:31,131 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:48:31,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:48:31,132 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:48:31,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:48:31,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:48:31,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:48:31,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:48:31,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:48:31,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:48:31,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:48:31,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:48:31,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:48:31,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:48:31,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:48:31,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:48:31,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:48:31,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:48:31,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:48:31,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:48:31,136 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:48:31,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:48:31,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:48:31,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:48:31,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:48:31,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:48:31,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:48:31,138 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_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 [2022-11-03 01:48:31,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:48:31,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:48:31,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:48:31,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:48:31,451 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:48:31,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-03 01:48:31,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/data/aef69c27b/5919ff1d98d4497eadc88b6087ede80c/FLAG26c424c21 [2022-11-03 01:48:32,232 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:48:32,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-03 01:48:32,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/data/aef69c27b/5919ff1d98d4497eadc88b6087ede80c/FLAG26c424c21 [2022-11-03 01:48:32,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/data/aef69c27b/5919ff1d98d4497eadc88b6087ede80c [2022-11-03 01:48:32,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:48:32,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:48:32,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:48:32,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:48:32,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:48:32,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:48:32" (1/1) ... [2022-11-03 01:48:32,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7c7ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:32, skipping insertion in model container [2022-11-03 01:48:32,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:48:32" (1/1) ... [2022-11-03 01:48:32,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:48:32,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:48:32,958 WARN L230 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_bebcadec-1a2d-43a6-9d05-0003d0828af6/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-03 01:48:33,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:48:33,159 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:48:33,226 WARN L230 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_bebcadec-1a2d-43a6-9d05-0003d0828af6/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-03 01:48:33,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:48:33,362 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:48:33,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33 WrapperNode [2022-11-03 01:48:33,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:48:33,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:48:33,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:48:33,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:48:33,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,514 INFO L138 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2022-11-03 01:48:33,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:48:33,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:48:33,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:48:33,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:48:33,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:48:33,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:48:33,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:48:33,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:48:33,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (1/1) ... [2022-11-03 01:48:33,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:48:33,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:33,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:48:33,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:48:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 01:48:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 01:48:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 01:48:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 01:48:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 01:48:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 01:48:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 01:48:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 01:48:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 01:48:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 01:48:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 01:48:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 01:48:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 01:48:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 01:48:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 01:48:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 01:48:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 01:48:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 01:48:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 01:48:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 01:48:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 01:48:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:48:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 01:48:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 01:48:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 01:48:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 01:48:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 01:48:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 01:48:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 01:48:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 01:48:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 01:48:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 01:48:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 01:48:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 01:48:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 01:48:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 01:48:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 01:48:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 01:48:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 01:48:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 01:48:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:48:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 01:48:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 01:48:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 01:48:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 01:48:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:48:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:48:33,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:48:33,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:48:35,016 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:48:35,620 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:48:35,621 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:48:35,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:48:35 BoogieIcfgContainer [2022-11-03 01:48:35,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:48:35,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:48:35,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:48:35,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:48:35,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:48:32" (1/3) ... [2022-11-03 01:48:35,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f0e1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:48:35, skipping insertion in model container [2022-11-03 01:48:35,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:48:33" (2/3) ... [2022-11-03 01:48:35,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f0e1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:48:35, skipping insertion in model container [2022-11-03 01:48:35,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:48:35" (3/3) ... [2022-11-03 01:48:35,637 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2022-11-03 01:48:35,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:48:35,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:48:35,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:48:35,766 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;@7ad5c099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:48:35,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:48:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 01:48:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:48:35,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:35,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:35,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:35,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash 70060755, now seen corresponding path program 1 times [2022-11-03 01:48:35,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:35,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918014876] [2022-11-03 01:48:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:35,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:36,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:36,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918014876] [2022-11-03 01:48:36,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918014876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:36,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:36,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:48:36,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620862651] [2022-11-03 01:48:36,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:36,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:48:36,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:48:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:48:36,297 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:36,469 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2022-11-03 01:48:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:48:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-03 01:48:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:36,495 INFO L225 Difference]: With dead ends: 254 [2022-11-03 01:48:36,495 INFO L226 Difference]: Without dead ends: 170 [2022-11-03 01:48:36,501 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 [2022-11-03 01:48:36,507 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:36,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:48:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-03 01:48:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-03 01:48:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-03 01:48:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-11-03 01:48:36,583 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2022-11-03 01:48:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:36,586 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-11-03 01:48:36,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-11-03 01:48:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 01:48:36,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:36,590 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] [2022-11-03 01:48:36,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:48:36,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1677675488, now seen corresponding path program 1 times [2022-11-03 01:48:36,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:36,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145961863] [2022-11-03 01:48:36,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:36,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:36,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:36,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145961863] [2022-11-03 01:48:36,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145961863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:36,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:36,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:36,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898715567] [2022-11-03 01:48:36,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:36,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:36,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:36,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:36,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:36,879 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:36,991 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2022-11-03 01:48:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-03 01:48:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:36,994 INFO L225 Difference]: With dead ends: 250 [2022-11-03 01:48:36,994 INFO L226 Difference]: Without dead ends: 172 [2022-11-03 01:48:36,995 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 [2022-11-03 01:48:36,997 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:36,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:48:36,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-03 01:48:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-03 01:48:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-03 01:48:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2022-11-03 01:48:37,016 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2022-11-03 01:48:37,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:37,017 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2022-11-03 01:48:37,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:37,017 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2022-11-03 01:48:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-03 01:48:37,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:37,020 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:37,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:48:37,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1022436331, now seen corresponding path program 1 times [2022-11-03 01:48:37,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:37,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426495581] [2022-11-03 01:48:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:37,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:37,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:37,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426495581] [2022-11-03 01:48:37,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426495581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:37,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:37,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:37,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511329502] [2022-11-03 01:48:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:37,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:37,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:37,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:37,178 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:37,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:37,290 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2022-11-03 01:48:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:37,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-03 01:48:37,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:37,293 INFO L225 Difference]: With dead ends: 379 [2022-11-03 01:48:37,294 INFO L226 Difference]: Without dead ends: 225 [2022-11-03 01:48:37,295 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 [2022-11-03 01:48:37,296 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:37,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:48:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-03 01:48:37,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2022-11-03 01:48:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-03 01:48:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2022-11-03 01:48:37,320 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2022-11-03 01:48:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:37,320 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2022-11-03 01:48:37,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:48:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2022-11-03 01:48:37,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 01:48:37,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:37,323 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] [2022-11-03 01:48:37,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:48:37,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash -336762770, now seen corresponding path program 1 times [2022-11-03 01:48:37,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:37,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649955204] [2022-11-03 01:48:37,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:37,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:37,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:37,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649955204] [2022-11-03 01:48:37,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649955204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:37,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175397397] [2022-11-03 01:48:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:37,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:37,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:37,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:37,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:48:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:37,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:48:37,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:38,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:48:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:48:38,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175397397] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:48:38,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1158837763] [2022-11-03 01:48:38,153 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-03 01:48:38,154 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:48:38,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:48:38,167 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:48:38,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:49:10,702 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 01:49:11,216 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-03 01:49:11,606 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2022-11-03 01:49:14,059 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-03 01:49:14,137 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-11-03 01:49:15,183 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 252 for LOIs [2022-11-03 01:49:27,029 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 234 for LOIs [2022-11-03 01:49:27,073 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 443 for LOIs [2022-11-03 01:49:27,985 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2022-11-03 01:49:28,029 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:49:43,986 WARN L234 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:49:51,372 WARN L234 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:49:59,978 WARN L234 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:50:07,918 WARN L234 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:50:27,283 WARN L234 SmtUtils]: Spent 8.84s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:50:38,053 WARN L234 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 518 DAG size of output: 292 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:51:04,956 WARN L234 SmtUtils]: Spent 25.35s on a formula simplification. DAG size of input: 585 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:51:18,550 WARN L234 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 587 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:12,368 WARN L234 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 538 DAG size of output: 310 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:20,184 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 580 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:23,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1158837763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:23,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:52:23,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-03 01:52:23,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623628391] [2022-11-03 01:52:23,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:23,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-03 01:52:23,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:23,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-03 01:52:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2420, Unknown=0, NotChecked=0, Total=2550 [2022-11-03 01:52:23,886 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 01:52:37,306 WARN L234 SmtUtils]: Spent 9.35s on a formula simplification. DAG size of input: 581 DAG size of output: 406 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:48,380 WARN L234 SmtUtils]: Spent 9.81s on a formula simplification. DAG size of input: 583 DAG size of output: 407 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:59,198 WARN L234 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 588 DAG size of output: 408 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:32,992 INFO L93 Difference]: Finished difference Result 556 states and 844 transitions. [2022-11-03 01:53:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 01:53:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 70 [2022-11-03 01:53:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:32,997 INFO L225 Difference]: With dead ends: 556 [2022-11-03 01:53:32,997 INFO L226 Difference]: Without dead ends: 354 [2022-11-03 01:53:32,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 218.8s TimeCoverageRelationStatistics Valid=180, Invalid=3242, Unknown=0, NotChecked=0, Total=3422 [2022-11-03 01:53:33,000 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 137 mSDsluCounter, 5336 mSDsCounter, 0 mSdLazyCounter, 6378 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 6403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:33,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 5453 Invalid, 6403 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [25 Valid, 6378 Invalid, 0 Unknown, 0 Unchecked, 25.5s Time] [2022-11-03 01:53:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-03 01:53:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 297. [2022-11-03 01:53:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 196 states have (on average 1.433673469387755) internal successors, (281), 200 states have internal predecessors, (281), 74 states have call successors, (74), 29 states have call predecessors, (74), 26 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-03 01:53:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 428 transitions. [2022-11-03 01:53:33,149 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 428 transitions. Word has length 70 [2022-11-03 01:53:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:33,150 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 428 transitions. [2022-11-03 01:53:33,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 01:53:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 428 transitions. [2022-11-03 01:53:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 01:53:33,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:33,153 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] [2022-11-03 01:53:33,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:33,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:33,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 770727592, now seen corresponding path program 1 times [2022-11-03 01:53:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:33,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715207496] [2022-11-03 01:53:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:53:33,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715207496] [2022-11-03 01:53:33,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715207496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:33,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:33,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:33,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141070085] [2022-11-03 01:53:33,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:33,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:33,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:33,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:33,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:33,460 INFO L87 Difference]: Start difference. First operand 297 states and 428 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:53:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:33,797 INFO L93 Difference]: Finished difference Result 718 states and 1078 transitions. [2022-11-03 01:53:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-03 01:53:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:33,804 INFO L225 Difference]: With dead ends: 718 [2022-11-03 01:53:33,804 INFO L226 Difference]: Without dead ends: 447 [2022-11-03 01:53:33,805 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 [2022-11-03 01:53:33,812 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:33,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 427 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:33,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-03 01:53:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 440. [2022-11-03 01:53:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 308 states have (on average 1.5) internal successors, (462), 312 states have internal predecessors, (462), 105 states have call successors, (105), 29 states have call predecessors, (105), 26 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2022-11-03 01:53:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 671 transitions. [2022-11-03 01:53:34,003 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 671 transitions. Word has length 75 [2022-11-03 01:53:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:34,004 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 671 transitions. [2022-11-03 01:53:34,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:53:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 671 transitions. [2022-11-03 01:53:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 01:53:34,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:34,007 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:34,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:53:34,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash 819910254, now seen corresponding path program 1 times [2022-11-03 01:53:34,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:34,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332127626] [2022-11-03 01:53:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:34,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:53:34,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:34,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332127626] [2022-11-03 01:53:34,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332127626] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:34,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932719753] [2022-11-03 01:53:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:34,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:34,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:34,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:53:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:34,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:53:34,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:53:34,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:53:34,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932719753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:53:34,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1787019770] [2022-11-03 01:53:34,548 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-03 01:53:34,549 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:34,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:34,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:34,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:13,606 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 01:54:13,907 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-03 01:54:14,207 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:54:28,299 WARN L234 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:54:35,018 WARN L234 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:54:42,177 WARN L234 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:54:48,980 WARN L234 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:07,287 WARN L234 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:31,521 WARN L234 SmtUtils]: Spent 12.41s on a formula simplification. DAG size of input: 592 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:57,128 WARN L234 SmtUtils]: Spent 24.06s on a formula simplification. DAG size of input: 594 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:08,346 WARN L234 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 576 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:19,600 WARN L234 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 574 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:30,655 WARN L234 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 574 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:41,610 WARN L234 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 572 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:45,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1787019770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:45,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:56:45,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 01:56:45,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347726966] [2022-11-03 01:56:45,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:45,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 01:56:45,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:45,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 01:56:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-03 01:56:45,850 INFO L87 Difference]: Start difference. First operand 440 states and 671 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 01:57:10,381 WARN L234 SmtUtils]: Spent 20.36s on a formula simplification. DAG size of input: 572 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:16,022 WARN L234 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 421 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:21,549 WARN L234 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 419 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:27,571 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 378 DAG size of output: 350 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:33,477 WARN L234 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 376 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:43,552 WARN L234 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 592 DAG size of output: 433 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:53,692 WARN L234 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 594 DAG size of output: 435 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:02,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:02,922 INFO L93 Difference]: Finished difference Result 855 states and 1338 transitions. [2022-11-03 01:58:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 01:58:02,927 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-11-03 01:58:02,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:02,931 INFO L225 Difference]: With dead ends: 855 [2022-11-03 01:58:02,931 INFO L226 Difference]: Without dead ends: 553 [2022-11-03 01:58:02,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 217.0s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 01:58:02,933 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 273 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:02,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 3176 Invalid, 2367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-11-03 01:58:02,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-03 01:58:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 472. [2022-11-03 01:58:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 336 states have (on average 1.4970238095238095) internal successors, (503), 342 states have internal predecessors, (503), 108 states have call successors, (108), 30 states have call predecessors, (108), 27 states have return successors, (107), 101 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-03 01:58:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 718 transitions. [2022-11-03 01:58:03,171 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 718 transitions. Word has length 76 [2022-11-03 01:58:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:03,172 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 718 transitions. [2022-11-03 01:58:03,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 01:58:03,172 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 718 transitions. [2022-11-03 01:58:03,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 01:58:03,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:03,175 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:58:03,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 01:58:03,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:03,390 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:03,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1620372676, now seen corresponding path program 1 times [2022-11-03 01:58:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:03,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202987054] [2022-11-03 01:58:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:03,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:58:03,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:03,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202987054] [2022-11-03 01:58:03,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202987054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:03,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753457194] [2022-11-03 01:58:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:03,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:58:03,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:58:03,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bebcadec-1a2d-43a6-9d05-0003d0828af6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:58:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:03,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:58:03,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:58:03,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:58:04,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753457194] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:58:04,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1100491639] [2022-11-03 01:58:04,026 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-03 01:58:04,026 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:58:04,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:58:04,031 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:58:04,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:00:14,567 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 02:00:14,862 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-11-03 02:00:15,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 457 for LOIs [2022-11-03 02:00:15,515 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 235 for LOIs [2022-11-03 02:00:15,582 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-03 02:00:15,886 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:00:29,656 WARN L234 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:35,941 WARN L234 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:43,479 WARN L234 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:50,562 WARN L234 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:07,751 WARN L234 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)