./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:17:02,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:17:02,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:17:02,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:17:02,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:17:02,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:17:02,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:17:02,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:17:02,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:17:02,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:17:02,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:17:02,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:17:02,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:17:02,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:17:02,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:17:02,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:17:02,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:17:02,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:17:02,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:17:02,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:17:02,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:17:02,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:17:02,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:17:02,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:17:02,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:17:02,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:17:02,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:17:02,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:17:02,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:17:02,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:17:02,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:17:02,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:17:02,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:17:02,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:17:02,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:17:02,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:17:02,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:17:02,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:17:02,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:17:02,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:17:02,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:17:02,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:17:02,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:17:02,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:17:02,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:17:02,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:17:02,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:17:02,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:17:02,618 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:17:02,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:17:02,618 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:17:02,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:17:02,619 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:17:02,619 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:17:02,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:17:02,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:17:02,619 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:17:02,620 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:17:02,620 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:17:02,620 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:17:02,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:17:02,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:17:02,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:17:02,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:17:02,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:17:02,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:17:02,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:17:02,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:17:02,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:17:02,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:17:02,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:17:02,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:17:02,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:17:02,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:17:02,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:17:02,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:17:02,624 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:17:02,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:17:02,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:17:02,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:17:02,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:17:02,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:17:02,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:17:02,625 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_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 [2022-12-14 10:17:02,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:17:02,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:17:02,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:17:02,819 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:17:02,820 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:17:02,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product22.cil.c [2022-12-14 10:17:05,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:17:05,625 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:17:05,625 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c [2022-12-14 10:17:05,636 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/data/de7b8e13a/906b564ed4e5434b9e3cc203c26e9df3/FLAG0d2b673e7 [2022-12-14 10:17:05,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/data/de7b8e13a/906b564ed4e5434b9e3cc203c26e9df3 [2022-12-14 10:17:05,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:17:05,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:17:05,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:17:05,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:17:06,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:17:06,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:17:05" (1/1) ... [2022-12-14 10:17:06,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69001037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06, skipping insertion in model container [2022-12-14 10:17:06,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:17:05" (1/1) ... [2022-12-14 10:17:06,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:17:06,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:17:06,346 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,349 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,359 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,360 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,375 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,376 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,378 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c[51984,51997] [2022-12-14 10:17:06,414 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,415 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:17:06,432 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:17:06,500 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,501 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,506 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,507 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,509 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,518 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,521 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c[51984,51997] [2022-12-14 10:17:06,541 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:17:06,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:17:06,570 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:17:06,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06 WrapperNode [2022-12-14 10:17:06,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:17:06,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:17:06,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:17:06,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:17:06,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,645 INFO L138 Inliner]: procedures = 129, calls = 211, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1031 [2022-12-14 10:17:06,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:17:06,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:17:06,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:17:06,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:17:06,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:17:06,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:17:06,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:17:06,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:17:06,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (1/1) ... [2022-12-14 10:17:06,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:17:06,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:17:06,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:17:06,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:17:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 10:17:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 10:17:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 10:17:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 10:17:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 10:17:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 10:17:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 10:17:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 10:17:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 10:17:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 10:17:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 10:17:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 10:17:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 10:17:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 10:17:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 10:17:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 10:17:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 10:17:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 10:17:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 10:17:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 10:17:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 10:17:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:17:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 10:17:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 10:17:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 10:17:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 10:17:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 10:17:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 10:17:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 10:17:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 10:17:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 10:17:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 10:17:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 10:17:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 10:17:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 10:17:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 10:17:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:17:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 10:17:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 10:17:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:17:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:17:06,901 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:17:06,904 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:17:07,383 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:17:07,721 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:17:07,721 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:17:07,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:17:07 BoogieIcfgContainer [2022-12-14 10:17:07,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:17:07,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:17:07,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:17:07,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:17:07,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:17:05" (1/3) ... [2022-12-14 10:17:07,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f671cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:17:07, skipping insertion in model container [2022-12-14 10:17:07,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:06" (2/3) ... [2022-12-14 10:17:07,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f671cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:17:07, skipping insertion in model container [2022-12-14 10:17:07,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:17:07" (3/3) ... [2022-12-14 10:17:07,732 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product22.cil.c [2022-12-14 10:17:07,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:17:07,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:17:07,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:17:07,808 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;@3a1c4ed4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:17:07,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:17:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 10:17:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 10:17:07,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:07,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:07,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1743315268, now seen corresponding path program 1 times [2022-12-14 10:17:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:07,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960291833] [2022-12-14 10:17:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:07,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:08,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:08,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960291833] [2022-12-14 10:17:08,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960291833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:08,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:08,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:17:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64005926] [2022-12-14 10:17:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:08,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:17:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:17:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:17:08,063 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:08,166 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2022-12-14 10:17:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:17:08,169 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 10:17:08,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:08,179 INFO L225 Difference]: With dead ends: 257 [2022-12-14 10:17:08,179 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 10:17:08,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:17:08,186 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:08,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:17:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 10:17:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-12-14 10:17:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 10:17:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2022-12-14 10:17:08,236 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2022-12-14 10:17:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:08,238 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2022-12-14 10:17:08,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,239 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2022-12-14 10:17:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 10:17:08,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:08,242 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:08,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:17:08,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1079150063, now seen corresponding path program 1 times [2022-12-14 10:17:08,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:08,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151798314] [2022-12-14 10:17:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:08,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:08,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:08,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151798314] [2022-12-14 10:17:08,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151798314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:08,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:08,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:17:08,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447058977] [2022-12-14 10:17:08,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:17:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:17:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:17:08,412 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:08,516 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2022-12-14 10:17:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:17:08,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 10:17:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:08,519 INFO L225 Difference]: With dead ends: 253 [2022-12-14 10:17:08,519 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 10:17:08,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:17:08,521 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:08,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:17:08,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 10:17:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 10:17:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 10:17:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2022-12-14 10:17:08,538 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2022-12-14 10:17:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:08,538 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-12-14 10:17:08,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2022-12-14 10:17:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 10:17:08,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:08,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:08,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:17:08,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:08,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:08,540 INFO L85 PathProgramCache]: Analyzing trace with hash 57284535, now seen corresponding path program 1 times [2022-12-14 10:17:08,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:08,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525212910] [2022-12-14 10:17:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:08,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:08,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:08,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525212910] [2022-12-14 10:17:08,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525212910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:08,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:08,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:17:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531539103] [2022-12-14 10:17:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:17:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:17:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:17:08,627 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:08,730 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2022-12-14 10:17:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:17:08,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 10:17:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:08,734 INFO L225 Difference]: With dead ends: 368 [2022-12-14 10:17:08,734 INFO L226 Difference]: Without dead ends: 217 [2022-12-14 10:17:08,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:17:08,737 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:08,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 401 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:17:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-12-14 10:17:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2022-12-14 10:17:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 10:17:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2022-12-14 10:17:08,753 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2022-12-14 10:17:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:08,753 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2022-12-14 10:17:08,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:17:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2022-12-14 10:17:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 10:17:08,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:08,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:08,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:17:08,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:08,756 INFO L85 PathProgramCache]: Analyzing trace with hash 217574638, now seen corresponding path program 1 times [2022-12-14 10:17:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:08,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608449752] [2022-12-14 10:17:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:08,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:08,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608449752] [2022-12-14 10:17:08,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608449752] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:17:08,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723658615] [2022-12-14 10:17:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:08,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:17:08,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:17:08,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:17:08,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:17:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:09,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:17:09,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:17:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:09,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:17:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:17:09,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723658615] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:17:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1941931282] [2022-12-14 10:17:09,200 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 10:17:09,200 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:17:09,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:17:09,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:17:09,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:17:50,715 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 10:17:51,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:17:51,342 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 470 for LOIs [2022-12-14 10:18:21,065 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 10:18:21,368 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 468 for LOIs [2022-12-14 10:18:28,121 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 438 for LOIs [2022-12-14 10:18:28,404 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 10:18:29,082 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:19:11,674 WARN L233 SmtUtils]: Spent 9.27s on a formula simplification. DAG size of input: 589 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:19:26,268 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 565 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:20:21,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1941931282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:20:21,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:20:21,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-12-14 10:20:21,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072512282] [2022-12-14 10:20:21,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:20:21,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 10:20:21,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:20:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 10:20:21,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1949, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 10:20:21,180 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 26 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 10:21:08,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:21:08,573 INFO L93 Difference]: Finished difference Result 588 states and 926 transitions. [2022-12-14 10:21:08,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-14 10:21:08,574 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 26 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-12-14 10:21:08,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:21:08,576 INFO L225 Difference]: With dead ends: 588 [2022-12-14 10:21:08,576 INFO L226 Difference]: Without dead ends: 394 [2022-12-14 10:21:08,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 142.1s TimeCoverageRelationStatistics Valid=197, Invalid=2883, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 10:21:08,578 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 265 mSDsluCounter, 4987 mSDsCounter, 0 mSdLazyCounter, 5794 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 5243 SdHoareTripleChecker+Invalid, 5824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:21:08,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 5243 Invalid, 5824 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 5794 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 10:21:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-12-14 10:21:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 298. [2022-12-14 10:21:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 208 states have (on average 1.4567307692307692) internal successors, (303), 211 states have internal predecessors, (303), 67 states have call successors, (67), 24 states have call predecessors, (67), 22 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 10:21:08,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 436 transitions. [2022-12-14 10:21:08,724 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 436 transitions. Word has length 63 [2022-12-14 10:21:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:21:08,724 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 436 transitions. [2022-12-14 10:21:08,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 26 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 10:21:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 436 transitions. [2022-12-14 10:21:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 10:21:08,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:21:08,726 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:21:08,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:21:08,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:21:08,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:21:08,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:21:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash 365797223, now seen corresponding path program 1 times [2022-12-14 10:21:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:21:08,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937485878] [2022-12-14 10:21:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:21:08,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:21:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:21:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:21:09,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:21:09,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937485878] [2022-12-14 10:21:09,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937485878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:21:09,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:21:09,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:21:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965061020] [2022-12-14 10:21:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:21:09,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:21:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:21:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:21:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:21:09,021 INFO L87 Difference]: Start difference. First operand 298 states and 436 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:21:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:21:09,292 INFO L93 Difference]: Finished difference Result 669 states and 1006 transitions. [2022-12-14 10:21:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:21:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-12-14 10:21:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:21:09,294 INFO L225 Difference]: With dead ends: 669 [2022-12-14 10:21:09,294 INFO L226 Difference]: Without dead ends: 413 [2022-12-14 10:21:09,295 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 [2022-12-14 10:21:09,295 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 55 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:21:09,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 415 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:21:09,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-12-14 10:21:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 406. [2022-12-14 10:21:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 291 states have (on average 1.4879725085910653) internal successors, (433), 294 states have internal predecessors, (433), 92 states have call successors, (92), 24 states have call predecessors, (92), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-12-14 10:21:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 616 transitions. [2022-12-14 10:21:09,485 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 616 transitions. Word has length 68 [2022-12-14 10:21:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:21:09,486 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 616 transitions. [2022-12-14 10:21:09,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:21:09,486 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 616 transitions. [2022-12-14 10:21:09,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:21:09,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:21:09,488 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:21:09,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:21:09,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:21:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:21:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1630333755, now seen corresponding path program 1 times [2022-12-14 10:21:09,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:21:09,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408097414] [2022-12-14 10:21:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:21:09,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:21:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:21:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:21:09,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:21:09,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408097414] [2022-12-14 10:21:09,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408097414] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:21:09,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651796998] [2022-12-14 10:21:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:21:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:21:09,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:21:09,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:21:09,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:21:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:21:09,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:21:09,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:21:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:21:09,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:21:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:21:09,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651796998] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:21:09,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [159673182] [2022-12-14 10:21:09,833 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 10:21:09,833 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:21:09,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:21:09,834 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:21:09,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:21:44,569 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:21:44,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 10:21:45,187 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:22:26,061 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 588 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:22:50,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [159673182] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:50,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:22:50,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2022-12-14 10:22:50,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599653404] [2022-12-14 10:22:50,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:50,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 10:22:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 10:22:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2022-12-14 10:22:50,947 INFO L87 Difference]: Start difference. First operand 406 states and 616 transitions. Second operand has 26 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 10:23:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:23:29,944 INFO L93 Difference]: Finished difference Result 780 states and 1217 transitions. [2022-12-14 10:23:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 10:23:29,945 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2022-12-14 10:23:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:23:29,947 INFO L225 Difference]: With dead ends: 780 [2022-12-14 10:23:29,947 INFO L226 Difference]: Without dead ends: 496 [2022-12-14 10:23:29,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=207, Invalid=1275, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 10:23:29,949 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 228 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:23:29,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 3458 Invalid, 2537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 10:23:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-12-14 10:23:30,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 434. [2022-12-14 10:23:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 316 states have (on average 1.4841772151898733) internal successors, (469), 320 states have internal predecessors, (469), 94 states have call successors, (94), 25 states have call predecessors, (94), 23 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2022-12-14 10:23:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 656 transitions. [2022-12-14 10:23:30,191 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 656 transitions. Word has length 69 [2022-12-14 10:23:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:23:30,192 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 656 transitions. [2022-12-14 10:23:30,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-12-14 10:23:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 656 transitions. [2022-12-14 10:23:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 10:23:30,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:23:30,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:23:30,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 10:23:30,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:23:30,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:23:30,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:23:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1773677709, now seen corresponding path program 1 times [2022-12-14 10:23:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:23:30,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813277797] [2022-12-14 10:23:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:23:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:23:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:23:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:23:30,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:23:30,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813277797] [2022-12-14 10:23:30,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813277797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:23:30,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377180506] [2022-12-14 10:23:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:23:30,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:23:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:23:30,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:23:30,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:23:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:23:30,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:23:30,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:23:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:23:30,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:23:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:23:30,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377180506] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:23:30,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1476394385] [2022-12-14 10:23:30,788 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 10:23:30,789 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:23:30,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:23:30,789 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:23:30,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:25:08,123 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:25:08,431 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 10:25:08,724 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 10:25:08,781 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:25:09,099 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 10:25:09,397 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 10:25:10,715 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 10:25:10,746 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 10:25:14,382 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 202 for LOIs [2022-12-14 10:25:14,409 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 220 for LOIs [2022-12-14 10:25:14,505 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:26:01,984 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 532 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:26:13,588 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 527 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:26:43,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1476394385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:26:43,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:26:43,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [4, 4, 4] total 56 [2022-12-14 10:26:43,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859498497] [2022-12-14 10:26:43,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:26:43,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-14 10:26:43,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:26:43,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-14 10:26:43,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=2920, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 10:26:43,848 INFO L87 Difference]: Start difference. First operand 434 states and 656 transitions. Second operand has 51 states, 32 states have (on average 1.125) internal successors, (36), 30 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:27:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:32,484 INFO L93 Difference]: Finished difference Result 871 states and 1342 transitions. [2022-12-14 10:27:32,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-14 10:27:32,484 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 32 states have (on average 1.125) internal successors, (36), 30 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 72 [2022-12-14 10:27:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:32,488 INFO L225 Difference]: With dead ends: 871 [2022-12-14 10:27:32,488 INFO L226 Difference]: Without dead ends: 587 [2022-12-14 10:27:32,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 118.4s TimeCoverageRelationStatistics Valid=283, Invalid=4547, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 10:27:32,490 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 251 mSDsluCounter, 5309 mSDsCounter, 0 mSdLazyCounter, 7116 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 5549 SdHoareTripleChecker+Invalid, 7154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 7116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:32,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 5549 Invalid, 7154 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [38 Valid, 7116 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2022-12-14 10:27:32,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-12-14 10:27:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 509. [2022-12-14 10:27:32,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 375 states have (on average 1.472) internal successors, (552), 381 states have internal predecessors, (552), 104 states have call successors, (104), 33 states have call predecessors, (104), 29 states have return successors, (103), 96 states have call predecessors, (103), 103 states have call successors, (103) [2022-12-14 10:27:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 759 transitions. [2022-12-14 10:27:32,828 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 759 transitions. Word has length 72 [2022-12-14 10:27:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:32,829 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 759 transitions. [2022-12-14 10:27:32,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 32 states have (on average 1.125) internal successors, (36), 30 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:27:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 759 transitions. [2022-12-14 10:27:32,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 10:27:32,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:32,830 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:32,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:27:33,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:33,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:27:33,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:33,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1429584796, now seen corresponding path program 1 times [2022-12-14 10:27:33,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:33,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407241784] [2022-12-14 10:27:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:27:33,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:33,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407241784] [2022-12-14 10:27:33,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407241784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:27:33,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430411046] [2022-12-14 10:27:33,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:33,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:33,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:33,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:27:33,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:27:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:33,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:27:33,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:27:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:27:33,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:27:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:27:33,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430411046] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:27:33,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1075081335] [2022-12-14 10:27:33,490 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 10:27:33,491 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:27:33,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:27:33,491 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:27:33,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:28:06,915 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:28:07,225 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 10:28:07,286 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 10:28:07,346 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 10:28:08,684 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 10:28:08,741 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 10:28:08,772 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:28:09,079 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 10:28:19,640 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 217 for LOIs [2022-12-14 10:28:19,675 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 200 for LOIs [2022-12-14 10:28:19,701 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 409 for LOIs [2022-12-14 10:28:22,555 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 236 for LOIs [2022-12-14 10:28:22,598 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:29:07,255 WARN L233 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 624 DAG size of output: 492 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:29:27,844 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 430 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:29:54,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1075081335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:29:54,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:29:54,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 10:29:54,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166055541] [2022-12-14 10:29:54,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:29:54,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 10:29:54,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:29:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 10:29:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3622, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 10:29:54,276 INFO L87 Difference]: Start difference. First operand 509 states and 759 transitions. Second operand has 57 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 10:30:01,904 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 542 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:30:26,115 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 579 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:30:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:51,872 INFO L93 Difference]: Finished difference Result 925 states and 1382 transitions. [2022-12-14 10:30:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 10:30:51,873 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 78 [2022-12-14 10:30:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:51,875 INFO L225 Difference]: With dead ends: 925 [2022-12-14 10:30:51,875 INFO L226 Difference]: Without dead ends: 565 [2022-12-14 10:30:51,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 126.5s TimeCoverageRelationStatistics Valid=261, Invalid=5289, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 10:30:51,877 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 283 mSDsluCounter, 6488 mSDsCounter, 0 mSdLazyCounter, 8797 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 6749 SdHoareTripleChecker+Invalid, 8824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:51,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 6749 Invalid, 8824 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 8797 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2022-12-14 10:30:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-14 10:30:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 508. [2022-12-14 10:30:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 366 states have (on average 1.459016393442623) internal successors, (534), 374 states have internal predecessors, (534), 108 states have call successors, (108), 38 states have call predecessors, (108), 33 states have return successors, (107), 98 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 10:30:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 749 transitions. [2022-12-14 10:30:52,273 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 749 transitions. Word has length 78 [2022-12-14 10:30:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:52,274 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 749 transitions. [2022-12-14 10:30:52,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 10:30:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 749 transitions. [2022-12-14 10:30:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 10:30:52,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:52,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:52,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 10:30:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:30:52,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1451954163, now seen corresponding path program 1 times [2022-12-14 10:30:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743491631] [2022-12-14 10:30:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:30:52,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:52,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743491631] [2022-12-14 10:30:52,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743491631] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:30:52,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369413265] [2022-12-14 10:30:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:52,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:30:52,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:30:52,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:30:52,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb7b107-202c-47e0-9a2c-a9431c642771/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:30:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:52,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:30:52,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:30:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:30:52,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:30:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:30:52,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369413265] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:30:52,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496952942] [2022-12-14 10:30:52,789 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 10:30:52,789 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:30:52,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:30:52,789 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:30:52,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs