./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 20:21:00,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:21:00,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:21:00,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:21:00,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:21:00,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:21:00,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:21:00,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:21:00,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:21:00,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:21:00,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:21:00,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:21:00,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:21:00,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:21:00,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:21:00,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:21:00,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:21:00,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:21:00,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:21:00,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:21:00,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:21:00,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:21:00,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:21:00,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:21:00,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:21:00,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:21:00,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:21:00,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:21:00,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:21:00,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:21:00,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:21:00,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:21:00,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:21:00,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:21:00,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:21:00,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:21:00,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:21:00,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:21:00,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:21:00,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:21:00,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:21:00,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:21:00,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:21:00,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:21:00,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:21:00,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:21:00,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:21:00,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:21:00,710 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:21:00,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:21:00,710 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:21:00,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:21:00,712 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:21:00,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:21:00,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:21:00,713 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:21:00,713 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:21:00,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:21:00,714 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:21:00,714 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:21:00,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:21:00,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:21:00,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:21:00,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:21:00,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:21:00,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:21:00,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:21:00,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:21:00,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:21:00,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:21:00,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:21:00,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:21:00,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:21:00,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:21:00,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:21:00,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:21:00,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:21:00,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:21:00,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:21:00,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:21:00,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:21:00,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:21:00,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:21:00,721 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_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 [2022-11-16 20:21:01,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:21:01,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:21:01,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:21:01,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:21:01,070 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:21:01,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-16 20:21:01,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/data/7efa144ee/8ef97da71c3243bb912b0ef0ad481807/FLAG679a88753 [2022-11-16 20:21:01,811 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:21:01,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-16 20:21:01,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/data/7efa144ee/8ef97da71c3243bb912b0ef0ad481807/FLAG679a88753 [2022-11-16 20:21:02,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/data/7efa144ee/8ef97da71c3243bb912b0ef0ad481807 [2022-11-16 20:21:02,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:21:02,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:21:02,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:21:02,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:21:02,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:21:02,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:02,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55de3f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02, skipping insertion in model container [2022-11-16 20:21:02,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:02,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:21:02,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:21:02,520 WARN L229 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_c91437f9-6964-4f0c-80b1-7448ae9f5b16/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-16 20:21:02,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:21:02,807 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:21:02,869 WARN L229 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_c91437f9-6964-4f0c-80b1-7448ae9f5b16/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-16 20:21:02,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:21:02,971 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:21:02,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02 WrapperNode [2022-11-16 20:21:02,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:21:02,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:21:02,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:21:02,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:21:02,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,075 INFO L138 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2022-11-16 20:21:03,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:21:03,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:21:03,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:21:03,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:21:03,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:21:03,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:21:03,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:21:03,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:21:03,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (1/1) ... [2022-11-16 20:21:03,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:21:03,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:21:03,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:21:03,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:21:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 20:21:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 20:21:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 20:21:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 20:21:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 20:21:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 20:21:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 20:21:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 20:21:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 20:21:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 20:21:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 20:21:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 20:21:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 20:21:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 20:21:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 20:21:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 20:21:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 20:21:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 20:21:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 20:21:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 20:21:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 20:21:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:21:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 20:21:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 20:21:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 20:21:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 20:21:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 20:21:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 20:21:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 20:21:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 20:21:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-16 20:21:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-16 20:21:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 20:21:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 20:21:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 20:21:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 20:21:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 20:21:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 20:21:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 20:21:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 20:21:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:21:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 20:21:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 20:21:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 20:21:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 20:21:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:21:03,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:21:03,604 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:21:03,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:21:04,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:21:05,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:21:05,078 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 20:21:05,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:21:05 BoogieIcfgContainer [2022-11-16 20:21:05,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:21:05,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:21:05,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:21:05,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:21:05,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:21:02" (1/3) ... [2022-11-16 20:21:05,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af47bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:21:05, skipping insertion in model container [2022-11-16 20:21:05,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:02" (2/3) ... [2022-11-16 20:21:05,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af47bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:21:05, skipping insertion in model container [2022-11-16 20:21:05,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:21:05" (3/3) ... [2022-11-16 20:21:05,093 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2022-11-16 20:21:05,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:21:05,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:21:05,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:21:05,203 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;@129ee26e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:21:05,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:21:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-16 20:21:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 20:21:05,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:05,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:05,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 70060755, now seen corresponding path program 1 times [2022-11-16 20:21:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156830412] [2022-11-16 20:21:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:05,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:05,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156830412] [2022-11-16 20:21:05,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156830412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:05,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:05,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:21:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580466235] [2022-11-16 20:21:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:05,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:21:05,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:21:05,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:21:05,791 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:05,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:05,976 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2022-11-16 20:21:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:21:05,979 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-16 20:21:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:05,998 INFO L225 Difference]: With dead ends: 254 [2022-11-16 20:21:05,998 INFO L226 Difference]: Without dead ends: 170 [2022-11-16 20:21:06,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:21:06,010 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:06,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:21:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-16 20:21:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-16 20:21:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-16 20:21:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-11-16 20:21:06,069 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2022-11-16 20:21:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:06,071 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-11-16 20:21:06,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-11-16 20:21:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 20:21:06,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:06,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:06,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:21:06,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:06,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:06,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1677675488, now seen corresponding path program 1 times [2022-11-16 20:21:06,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:06,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913568982] [2022-11-16 20:21:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:06,315 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:06,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:06,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913568982] [2022-11-16 20:21:06,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913568982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:06,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:06,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:21:06,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145609308] [2022-11-16 20:21:06,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:06,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:21:06,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:06,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:21:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:06,321 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:06,481 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2022-11-16 20:21:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:06,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-16 20:21:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:06,484 INFO L225 Difference]: With dead ends: 250 [2022-11-16 20:21:06,484 INFO L226 Difference]: Without dead ends: 172 [2022-11-16 20:21:06,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:06,487 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:06,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:21:06,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-16 20:21:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-16 20:21:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-16 20:21:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2022-11-16 20:21:06,521 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2022-11-16 20:21:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:06,522 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2022-11-16 20:21:06,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2022-11-16 20:21:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 20:21:06,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:06,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:06,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:21:06,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1022436331, now seen corresponding path program 1 times [2022-11-16 20:21:06,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:06,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551784990] [2022-11-16 20:21:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:06,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:06,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551784990] [2022-11-16 20:21:06,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551784990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:06,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:06,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:21:06,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587131701] [2022-11-16 20:21:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:06,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:21:06,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:06,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:21:06,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:06,717 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:06,909 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2022-11-16 20:21:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:06,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-16 20:21:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:06,915 INFO L225 Difference]: With dead ends: 379 [2022-11-16 20:21:06,915 INFO L226 Difference]: Without dead ends: 225 [2022-11-16 20:21:06,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:06,917 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 59 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:06,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:21:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-16 20:21:06,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2022-11-16 20:21:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-16 20:21:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2022-11-16 20:21:06,965 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2022-11-16 20:21:06,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:06,967 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2022-11-16 20:21:06,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:21:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2022-11-16 20:21:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 20:21:06,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:06,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:06,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:21:06,974 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:06,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:06,975 INFO L85 PathProgramCache]: Analyzing trace with hash -336762770, now seen corresponding path program 1 times [2022-11-16 20:21:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:06,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69444430] [2022-11-16 20:21:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:07,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:07,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69444430] [2022-11-16 20:21:07,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69444430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:21:07,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497912938] [2022-11-16 20:21:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:07,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:21:07,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:21:07,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:21:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:21:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:07,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:21:07,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:21:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:07,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:21:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:21:07,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497912938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:21:07,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [359354835] [2022-11-16 20:21:07,764 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-16 20:21:07,765 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:21:07,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:21:07,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:21:07,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:21:37,533 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:21:37,851 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-16 20:21:38,189 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2022-11-16 20:21:39,974 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-16 20:21:40,026 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-11-16 20:21:40,740 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 252 for LOIs [2022-11-16 20:21:51,186 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 234 for LOIs [2022-11-16 20:21:51,225 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 443 for LOIs [2022-11-16 20:21:51,993 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2022-11-16 20:21:52,040 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:22:06,385 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:12,775 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:19,938 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:26,615 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:43,702 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:23:14,437 WARN L233 SmtUtils]: Spent 20.50s on a formula simplification. DAG size of input: 585 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:23:25,720 WARN L233 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 587 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:24:20,188 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 580 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:24:23,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [359354835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:24:23,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:24:23,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-16 20:24:23,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527919301] [2022-11-16 20:24:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:24:23,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-16 20:24:23,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:24:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-16 20:24:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2420, Unknown=0, NotChecked=0, Total=2550 [2022-11-16 20:24:23,793 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 20:24:37,413 WARN L233 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 581 DAG size of output: 406 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:24:48,271 WARN L233 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 583 DAG size of output: 407 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:24:58,499 WARN L233 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 588 DAG size of output: 408 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:25:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:25:31,334 INFO L93 Difference]: Finished difference Result 556 states and 844 transitions. [2022-11-16 20:25:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 20:25:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 70 [2022-11-16 20:25:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:25:31,338 INFO L225 Difference]: With dead ends: 556 [2022-11-16 20:25:31,339 INFO L226 Difference]: Without dead ends: 354 [2022-11-16 20:25:31,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 193.8s TimeCoverageRelationStatistics Valid=180, Invalid=3242, Unknown=0, NotChecked=0, Total=3422 [2022-11-16 20:25:31,342 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 142 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 6378 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 6398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-16 20:25:31,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 5453 Invalid, 6398 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [20 Valid, 6378 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2022-11-16 20:25:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-16 20:25:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 297. [2022-11-16 20:25:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 196 states have (on average 1.433673469387755) internal successors, (281), 200 states have internal predecessors, (281), 74 states have call successors, (74), 29 states have call predecessors, (74), 26 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-16 20:25:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 428 transitions. [2022-11-16 20:25:31,511 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 428 transitions. Word has length 70 [2022-11-16 20:25:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:25:31,512 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 428 transitions. [2022-11-16 20:25:31,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 20:25:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 428 transitions. [2022-11-16 20:25:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 20:25:31,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:25:31,515 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:25:31,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 20:25:31,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:25:31,722 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:25:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:25:31,722 INFO L85 PathProgramCache]: Analyzing trace with hash 770727592, now seen corresponding path program 1 times [2022-11-16 20:25:31,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:25:31,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067660403] [2022-11-16 20:25:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:25:31,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:25:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:25:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:25:31,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:25:31,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067660403] [2022-11-16 20:25:31,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067660403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:25:31,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:25:31,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:25:31,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994840343] [2022-11-16 20:25:31,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:25:31,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:25:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:25:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:25:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:25:31,826 INFO L87 Difference]: Start difference. First operand 297 states and 428 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:25:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:25:32,147 INFO L93 Difference]: Finished difference Result 718 states and 1078 transitions. [2022-11-16 20:25:32,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:25:32,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-16 20:25:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:25:32,151 INFO L225 Difference]: With dead ends: 718 [2022-11-16 20:25:32,151 INFO L226 Difference]: Without dead ends: 447 [2022-11-16 20:25:32,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:25:32,153 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:25:32,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 427 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:25:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-16 20:25:32,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 440. [2022-11-16 20:25:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 308 states have (on average 1.5) internal successors, (462), 312 states have internal predecessors, (462), 105 states have call successors, (105), 29 states have call predecessors, (105), 26 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2022-11-16 20:25:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 671 transitions. [2022-11-16 20:25:32,353 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 671 transitions. Word has length 75 [2022-11-16 20:25:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:25:32,354 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 671 transitions. [2022-11-16 20:25:32,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:25:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 671 transitions. [2022-11-16 20:25:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 20:25:32,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:25:32,358 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:25:32,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:25:32,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:25:32,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:25:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash 819910254, now seen corresponding path program 1 times [2022-11-16 20:25:32,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:25:32,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51307276] [2022-11-16 20:25:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:25:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:25:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:25:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:25:32,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:25:32,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51307276] [2022-11-16 20:25:32,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51307276] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:25:32,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324998247] [2022-11-16 20:25:32,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:25:32,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:25:32,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:25:32,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:25:32,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:25:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:25:32,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:25:32,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:25:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:25:32,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:25:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:25:32,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324998247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:25:32,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [24692859] [2022-11-16 20:25:32,951 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-16 20:25:32,952 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:25:32,955 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:25:32,955 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:25:32,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:26:13,725 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:26:14,045 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-16 20:26:14,353 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:26:28,452 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:34,866 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:41,701 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:48,133 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:27:05,137 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:27:26,162 WARN L233 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 592 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:27:47,139 WARN L233 SmtUtils]: Spent 20.62s on a formula simplification. DAG size of input: 594 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:27:56,559 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 576 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:05,983 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 574 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:14,826 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 574 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:23,641 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 572 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:27,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [24692859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:28:27,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:28:27,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-16 20:28:27,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482894058] [2022-11-16 20:28:27,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:28:27,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 20:28:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:28:27,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 20:28:27,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-16 20:28:27,848 INFO L87 Difference]: Start difference. First operand 440 states and 671 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-16 20:28:50,206 WARN L233 SmtUtils]: Spent 17.98s on a formula simplification. DAG size of input: 572 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:55,775 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 421 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:01,299 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 419 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:22,037 WARN L233 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 592 DAG size of output: 433 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:32,459 WARN L233 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 594 DAG size of output: 435 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:29:41,647 INFO L93 Difference]: Finished difference Result 855 states and 1338 transitions. [2022-11-16 20:29:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 20:29:41,649 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-11-16 20:29:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:29:41,664 INFO L225 Difference]: With dead ends: 855 [2022-11-16 20:29:41,664 INFO L226 Difference]: Without dead ends: 553 [2022-11-16 20:29:41,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 195.5s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 20:29:41,668 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 277 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:29:41,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 3176 Invalid, 2363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-11-16 20:29:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-16 20:29:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 472. [2022-11-16 20:29:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 336 states have (on average 1.4970238095238095) internal successors, (503), 342 states have internal predecessors, (503), 108 states have call successors, (108), 30 states have call predecessors, (108), 27 states have return successors, (107), 101 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-16 20:29:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 718 transitions. [2022-11-16 20:29:41,949 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 718 transitions. Word has length 76 [2022-11-16 20:29:41,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:29:41,950 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 718 transitions. [2022-11-16 20:29:41,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-16 20:29:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 718 transitions. [2022-11-16 20:29:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 20:29:41,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:41,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:41,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:29:42,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 20:29:42,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1620372676, now seen corresponding path program 1 times [2022-11-16 20:29:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:42,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182265239] [2022-11-16 20:29:42,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:42,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:29:42,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:42,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182265239] [2022-11-16 20:29:42,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182265239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:29:42,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053909316] [2022-11-16 20:29:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:42,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:42,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:29:42,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:29:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:42,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:29:42,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:29:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:29:42,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:29:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:29:42,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053909316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:29:42,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [712030474] [2022-11-16 20:29:42,818 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-16 20:29:42,819 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:29:42,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:29:42,819 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:29:42,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:32:02,614 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:32:02,925 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-11-16 20:32:03,256 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 457 for LOIs [2022-11-16 20:32:03,607 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 235 for LOIs [2022-11-16 20:32:03,675 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-16 20:32:04,002 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:32:18,044 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:32:24,431 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:32:31,556 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:32:38,237 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:32:55,242 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 496 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:33:14,371 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 551 DAG size of output: 373 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:33:21,311 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 553 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:33:33,814 WARN L233 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 573 DAG size of output: 440 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:33:43,717 WARN L233 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 569 DAG size of output: 436 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:34:00,844 WARN L233 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 549 DAG size of output: 389 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:34:16,216 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 530 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:34:16,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [712030474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:34:16,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:34:16,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-16 20:34:16,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764373213] [2022-11-16 20:34:16,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:34:16,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 20:34:16,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:34:16,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 20:34:16,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 20:34:16,229 INFO L87 Difference]: Start difference. First operand 472 states and 718 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 20:34:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:34:37,516 INFO L93 Difference]: Finished difference Result 935 states and 1471 transitions. [2022-11-16 20:34:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 20:34:37,517 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-11-16 20:34:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:34:37,521 INFO L225 Difference]: With dead ends: 935 [2022-11-16 20:34:37,521 INFO L226 Difference]: Without dead ends: 633 [2022-11-16 20:34:37,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 139.5s TimeCoverageRelationStatistics Valid=150, Invalid=1256, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 20:34:37,524 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 152 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:34:37,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3206 Invalid, 3067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-11-16 20:34:37,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-11-16 20:34:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 545. [2022-11-16 20:34:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 401 states have (on average 1.5112219451371571) internal successors, (606), 409 states have internal predecessors, (606), 113 states have call successors, (113), 33 states have call predecessors, (113), 30 states have return successors, (112), 104 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-16 20:34:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 831 transitions. [2022-11-16 20:34:37,913 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 831 transitions. Word has length 79 [2022-11-16 20:34:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:34:37,913 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 831 transitions. [2022-11-16 20:34:37,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 20:34:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 831 transitions. [2022-11-16 20:34:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 20:34:37,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:34:37,917 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:34:37,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:34:38,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 20:34:38,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:34:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:34:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash 854298010, now seen corresponding path program 1 times [2022-11-16 20:34:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:34:38,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255311353] [2022-11-16 20:34:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:34:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:34:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:34:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-16 20:34:38,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:34:38,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255311353] [2022-11-16 20:34:38,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255311353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:34:38,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:34:38,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:34:38,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381115750] [2022-11-16 20:34:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:34:38,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:34:38,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:34:38,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:34:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:34:38,341 INFO L87 Difference]: Start difference. First operand 545 states and 831 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:34:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:34:38,975 INFO L93 Difference]: Finished difference Result 658 states and 969 transitions. [2022-11-16 20:34:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:34:38,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2022-11-16 20:34:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:34:38,979 INFO L225 Difference]: With dead ends: 658 [2022-11-16 20:34:38,979 INFO L226 Difference]: Without dead ends: 587 [2022-11-16 20:34:38,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:34:38,981 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 142 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:34:38,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 280 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:34:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-16 20:34:39,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 584. [2022-11-16 20:34:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 420 states have (on average 1.4928571428571429) internal successors, (627), 431 states have internal predecessors, (627), 125 states have call successors, (125), 43 states have call predecessors, (125), 38 states have return successors, (123), 112 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-16 20:34:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 875 transitions. [2022-11-16 20:34:39,507 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 875 transitions. Word has length 81 [2022-11-16 20:34:39,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:34:39,508 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 875 transitions. [2022-11-16 20:34:39,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:34:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 875 transitions. [2022-11-16 20:34:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-16 20:34:39,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:34:39,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:34:39,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 20:34:39,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:34:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:34:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash 928405468, now seen corresponding path program 1 times [2022-11-16 20:34:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:34:39,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215868124] [2022-11-16 20:34:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:34:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:34:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:34:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 20:34:39,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:34:39,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215868124] [2022-11-16 20:34:39,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215868124] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:34:39,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742192172] [2022-11-16 20:34:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:34:39,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:34:39,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:34:39,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:34:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91437f9-6964-4f0c-80b1-7448ae9f5b16/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:34:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:34:40,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:34:40,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:34:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-16 20:34:40,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:34:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 20:34:40,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742192172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:34:40,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092792591] [2022-11-16 20:34:40,207 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-11-16 20:34:40,207 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:34:40,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:34:40,209 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:34:40,209 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs