./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c8df6e468eecbce541189806946dc0233fe629a6f2a971a54d2c5d7914e97b3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:51:29,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:51:29,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:51:29,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:51:29,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:51:29,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:51:29,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:51:29,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:51:29,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:51:29,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:51:29,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:51:29,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:51:29,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:51:29,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:51:29,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:51:29,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:51:29,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:51:29,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:51:29,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:51:29,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:51:29,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:51:29,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:51:29,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:51:29,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:51:29,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:51:29,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:51:29,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:51:29,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:51:29,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:51:29,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:51:29,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:51:29,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:51:29,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:51:29,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:51:29,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:51:29,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:51:29,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:51:29,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:51:29,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:51:29,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:51:29,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:51:29,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:51:29,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:51:29,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:51:29,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:51:29,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:51:29,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:51:29,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:51:29,801 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:51:29,801 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:51:29,802 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:51:29,802 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:51:29,805 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:51:29,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:51:29,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:51:29,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:51:29,806 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:51:29,807 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:51:29,807 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:51:29,807 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:51:29,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:51:29,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:51:29,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:51:29,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:51:29,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:51:29,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:51:29,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:51:29,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:51:29,811 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:51:29,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:51:29,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:51:29,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:51:29,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:51:29,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:51:29,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:51:29,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:51:29,816 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:51:29,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:51:29,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:51:29,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:51:29,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:51:29,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:51:29,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:51:29,819 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_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8df6e468eecbce541189806946dc0233fe629a6f2a971a54d2c5d7914e97b3 [2022-11-03 01:51:30,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:51:30,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:51:30,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:51:30,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:51:30,196 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:51:30,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c [2022-11-03 01:51:30,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/data/ec7061182/6e17443560424682a87ad9c054b52e14/FLAG279c24c55 [2022-11-03 01:51:30,951 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:51:30,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c [2022-11-03 01:51:30,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/data/ec7061182/6e17443560424682a87ad9c054b52e14/FLAG279c24c55 [2022-11-03 01:51:31,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/data/ec7061182/6e17443560424682a87ad9c054b52e14 [2022-11-03 01:51:31,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:51:31,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:51:31,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:51:31,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:51:31,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:51:31,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:51:31" (1/1) ... [2022-11-03 01:51:31,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315cc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:31, skipping insertion in model container [2022-11-03 01:51:31,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:51:31" (1/1) ... [2022-11-03 01:51:31,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:51:31,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:51:31,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c[11485,11498] [2022-11-03 01:51:32,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:51:32,054 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:51:32,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c[11485,11498] [2022-11-03 01:51:32,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:51:32,221 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:51:32,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32 WrapperNode [2022-11-03 01:51:32,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:51:32,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:51:32,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:51:32,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:51:32,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,380 INFO L138 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1123 [2022-11-03 01:51:32,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:51:32,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:51:32,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:51:32,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:51:32,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:51:32,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:51:32,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:51:32,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:51:32,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (1/1) ... [2022-11-03 01:51:32,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:51:32,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:32,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:51:32,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:51:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 01:51:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 01:51:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 01:51:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 01:51:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 01:51:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 01:51:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 01:51:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 01:51:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 01:51:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 01:51:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 01:51:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 01:51:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 01:51:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 01:51:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 01:51:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 01:51:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 01:51:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 01:51:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 01:51:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 01:51:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 01:51:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 01:51:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 01:51:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 01:51:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 01:51:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 01:51:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 01:51:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 01:51:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 01:51:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:51:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 01:51:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 01:51:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 01:51:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 01:51:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 01:51:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 01:51:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 01:51:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 01:51:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 01:51:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 01:51:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 01:51:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 01:51:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 01:51:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 01:51:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 01:51:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 01:51:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 01:51:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 01:51:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 01:51:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 01:51:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 01:51:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 01:51:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 01:51:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 01:51:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:51:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 01:51:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 01:51:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 01:51:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 01:51:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:51:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:51:33,027 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:51:33,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:51:34,122 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:51:34,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:51:34,704 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:51:34,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:34 BoogieIcfgContainer [2022-11-03 01:51:34,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:51:34,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:51:34,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:51:34,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:51:34,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:51:31" (1/3) ... [2022-11-03 01:51:34,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61500ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:34, skipping insertion in model container [2022-11-03 01:51:34,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:32" (2/3) ... [2022-11-03 01:51:34,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61500ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:34, skipping insertion in model container [2022-11-03 01:51:34,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:34" (3/3) ... [2022-11-03 01:51:34,717 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.c [2022-11-03 01:51:34,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:51:34,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:51:34,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:51:34,797 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;@134c958d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:51:34,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:51:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 137 states have internal predecessors, (170), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-03 01:51:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 01:51:34,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:34,817 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:34,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:34,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1254057680, now seen corresponding path program 1 times [2022-11-03 01:51:34,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:34,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179615939] [2022-11-03 01:51:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:34,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:51:35,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:35,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179615939] [2022-11-03 01:51:35,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179615939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:35,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:35,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:51:35,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104749766] [2022-11-03 01:51:35,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:35,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:51:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:35,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:51:35,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:51:35,302 INFO L87 Difference]: Start difference. First operand has 235 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 137 states have internal predecessors, (170), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:51:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:35,529 INFO L93 Difference]: Finished difference Result 378 states and 503 transitions. [2022-11-03 01:51:35,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:51:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2022-11-03 01:51:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:35,553 INFO L225 Difference]: With dead ends: 378 [2022-11-03 01:51:35,555 INFO L226 Difference]: Without dead ends: 232 [2022-11-03 01:51:35,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:51:35,572 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:35,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-03 01:51:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-11-03 01:51:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-03 01:51:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2022-11-03 01:51:35,680 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 87 [2022-11-03 01:51:35,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:35,682 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2022-11-03 01:51:35,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:51:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2022-11-03 01:51:35,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 01:51:35,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:35,696 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:35,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:51:35,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:35,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:35,698 INFO L85 PathProgramCache]: Analyzing trace with hash 803080450, now seen corresponding path program 1 times [2022-11-03 01:51:35,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:35,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025481749] [2022-11-03 01:51:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:35,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:51:36,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025481749] [2022-11-03 01:51:36,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025481749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:36,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:36,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:36,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565525680] [2022-11-03 01:51:36,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:36,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:36,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:36,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:36,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:36,127 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:51:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:36,300 INFO L93 Difference]: Finished difference Result 374 states and 488 transitions. [2022-11-03 01:51:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:36,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 99 [2022-11-03 01:51:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:36,304 INFO L225 Difference]: With dead ends: 374 [2022-11-03 01:51:36,304 INFO L226 Difference]: Without dead ends: 234 [2022-11-03 01:51:36,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:36,306 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:36,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-03 01:51:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-03 01:51:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 136 states have internal predecessors, (166), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-03 01:51:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2022-11-03 01:51:36,326 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 99 [2022-11-03 01:51:36,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:36,327 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2022-11-03 01:51:36,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:51:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2022-11-03 01:51:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 01:51:36,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:36,330 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:36,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:51:36,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1477782135, now seen corresponding path program 1 times [2022-11-03 01:51:36,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:36,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352726266] [2022-11-03 01:51:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:36,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:51:36,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:36,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352726266] [2022-11-03 01:51:36,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352726266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:36,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:36,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768547479] [2022-11-03 01:51:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:36,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:36,495 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:51:36,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:36,714 INFO L93 Difference]: Finished difference Result 503 states and 689 transitions. [2022-11-03 01:51:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:36,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2022-11-03 01:51:36,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:36,718 INFO L225 Difference]: With dead ends: 503 [2022-11-03 01:51:36,718 INFO L226 Difference]: Without dead ends: 287 [2022-11-03 01:51:36,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:36,721 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 59 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:36,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 545 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:51:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-03 01:51:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 282. [2022-11-03 01:51:36,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 170 states have internal predecessors, (221), 87 states have call successors, (87), 28 states have call predecessors, (87), 28 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-03 01:51:36,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 394 transitions. [2022-11-03 01:51:36,749 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 394 transitions. Word has length 104 [2022-11-03 01:51:36,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:36,750 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 394 transitions. [2022-11-03 01:51:36,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:51:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 394 transitions. [2022-11-03 01:51:36,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 01:51:36,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:36,753 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:36,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:51:36,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:36,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:36,754 INFO L85 PathProgramCache]: Analyzing trace with hash 755610130, now seen corresponding path program 1 times [2022-11-03 01:51:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:36,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527594696] [2022-11-03 01:51:36,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:36,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:51:37,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527594696] [2022-11-03 01:51:37,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527594696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:37,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255946831] [2022-11-03 01:51:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:37,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:37,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:37,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:51:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:37,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:51:37,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:51:37,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:51:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:51:37,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255946831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:51:37,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1587863621] [2022-11-03 01:51:37,826 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-11-03 01:51:37,826 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:51:37,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:51:37,839 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:51:37,843 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:52:11,140 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 01:52:11,566 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 01:52:11,969 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:52:52,366 WARN L234 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 490 DAG size of output: 286 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:58,626 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:06,366 WARN L234 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 512 DAG size of output: 314 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:23,742 WARN L234 SmtUtils]: Spent 17.05s on a formula simplification. DAG size of input: 577 DAG size of output: 388 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:35,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1587863621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:35,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:53:35,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 01:53:35,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442196283] [2022-11-03 01:53:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:35,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 01:53:35,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 01:53:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:53:35,290 INFO L87 Difference]: Start difference. First operand 282 states and 394 transitions. Second operand has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:53:45,886 WARN L234 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 447 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:53,881 INFO L93 Difference]: Finished difference Result 612 states and 889 transitions. [2022-11-03 01:53:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 01:53:53,883 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 94 [2022-11-03 01:53:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:53,886 INFO L225 Difference]: With dead ends: 612 [2022-11-03 01:53:53,886 INFO L226 Difference]: Without dead ends: 348 [2022-11-03 01:53:53,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 91.8s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-11-03 01:53:53,888 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 120 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:53,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 4338 Invalid, 2271 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-03 01:53:53,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-03 01:53:54,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 305. [2022-11-03 01:53:54,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 188 states have (on average 1.351063829787234) internal successors, (254), 192 states have internal predecessors, (254), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-03 01:53:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 427 transitions. [2022-11-03 01:53:54,018 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 427 transitions. Word has length 94 [2022-11-03 01:53:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:54,019 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 427 transitions. [2022-11-03 01:53:54,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:53:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 427 transitions. [2022-11-03 01:53:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 01:53:54,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:54,022 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:54,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 01:53:54,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:54,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1677630821, now seen corresponding path program 1 times [2022-11-03 01:53:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504283062] [2022-11-03 01:53:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:54,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:53:54,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:54,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504283062] [2022-11-03 01:53:54,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504283062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:54,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:54,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:54,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441443257] [2022-11-03 01:53:54,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:54,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:54,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:54,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:54,365 INFO L87 Difference]: Start difference. First operand 305 states and 427 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:53:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:54,695 INFO L93 Difference]: Finished difference Result 713 states and 1034 transitions. [2022-11-03 01:53:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:54,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-03 01:53:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:54,704 INFO L225 Difference]: With dead ends: 713 [2022-11-03 01:53:54,704 INFO L226 Difference]: Without dead ends: 432 [2022-11-03 01:53:54,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:54,710 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 57 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:54,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 557 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:54,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-03 01:53:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2022-11-03 01:53:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 279 states have (on average 1.4121863799283154) internal successors, (394), 283 states have internal predecessors, (394), 118 states have call successors, (118), 29 states have call predecessors, (118), 29 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-11-03 01:53:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 629 transitions. [2022-11-03 01:53:54,926 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 629 transitions. Word has length 99 [2022-11-03 01:53:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:54,927 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 629 transitions. [2022-11-03 01:53:54,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:53:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 629 transitions. [2022-11-03 01:53:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 01:53:54,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:54,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:54,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:53:54,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:54,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 960170417, now seen corresponding path program 1 times [2022-11-03 01:53:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:54,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476219369] [2022-11-03 01:53:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 01:53:55,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:55,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476219369] [2022-11-03 01:53:55,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476219369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:55,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128910691] [2022-11-03 01:53:55,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:55,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:55,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:55,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:55,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:53:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:55,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:53:55,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 01:53:55,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 01:53:55,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128910691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:53:55,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993498579] [2022-11-03 01:53:55,688 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-03 01:53:55,688 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:55,689 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:55,689 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:55,689 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:42,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 01:54:42,654 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 266 for LOIs [2022-11-03 01:54:44,600 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 01:54:44,968 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 268 for LOIs [2022-11-03 01:54:48,315 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-11-03 01:54:48,379 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 234 for LOIs [2022-11-03 01:54:48,441 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-03 01:54:48,499 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-03 01:54:48,548 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:34,445 WARN L234 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:41,553 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 512 DAG size of output: 314 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:54,151 WARN L234 SmtUtils]: Spent 11.34s on a formula simplification. DAG size of input: 587 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:07,249 WARN L234 SmtUtils]: Spent 11.79s on a formula simplification. DAG size of input: 589 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:30,867 WARN L234 SmtUtils]: Spent 22.18s on a formula simplification. DAG size of input: 588 DAG size of output: 461 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:38,981 WARN L234 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 573 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:17,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [993498579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:17,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:57:17,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-11-03 01:57:17,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990213533] [2022-11-03 01:57:17,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:17,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 01:57:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:17,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 01:57:17,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2326, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 01:57:17,059 INFO L87 Difference]: Start difference. First operand 427 states and 629 transitions. Second operand has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 28 states have internal predecessors, (53), 14 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2022-11-03 01:57:48,290 WARN L234 SmtUtils]: Spent 20.12s on a formula simplification. DAG size of input: 543 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:09,468 WARN L234 SmtUtils]: Spent 20.42s on a formula simplification. DAG size of input: 591 DAG size of output: 440 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:45,650 WARN L234 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 599 DAG size of output: 432 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:09,892 WARN L234 SmtUtils]: Spent 19.09s on a formula simplification. DAG size of input: 590 DAG size of output: 441 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:50,204 INFO L93 Difference]: Finished difference Result 931 states and 1415 transitions. [2022-11-03 01:59:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-03 01:59:50,205 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 28 states have internal predecessors, (53), 14 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) Word has length 111 [2022-11-03 01:59:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:50,213 INFO L225 Difference]: With dead ends: 931 [2022-11-03 01:59:50,213 INFO L226 Difference]: Without dead ends: 567 [2022-11-03 01:59:50,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 270.6s TimeCoverageRelationStatistics Valid=255, Invalid=4301, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 01:59:50,217 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 285 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 7125 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 6587 SdHoareTripleChecker+Invalid, 7185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 7125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:50,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 6587 Invalid, 7185 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [60 Valid, 7125 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time] [2022-11-03 01:59:50,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-03 01:59:50,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 466. [2022-11-03 01:59:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 304 states have (on average 1.4046052631578947) internal successors, (427), 310 states have internal predecessors, (427), 127 states have call successors, (127), 36 states have call predecessors, (127), 34 states have return successors, (126), 121 states have call predecessors, (126), 126 states have call successors, (126) [2022-11-03 01:59:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 680 transitions. [2022-11-03 01:59:50,420 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 680 transitions. Word has length 111 [2022-11-03 01:59:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:50,420 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 680 transitions. [2022-11-03 01:59:50,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 28 states have internal predecessors, (53), 14 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2022-11-03 01:59:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 680 transitions. [2022-11-03 01:59:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 01:59:50,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:50,424 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:50,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:59:50,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:50,651 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1065287996, now seen corresponding path program 1 times [2022-11-03 01:59:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:50,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043190089] [2022-11-03 01:59:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:59:50,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:50,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043190089] [2022-11-03 01:59:50,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043190089] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:50,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082422933] [2022-11-03 01:59:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:50,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:50,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:59:50,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:59:50,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_350928f8-7ada-4c9c-b83e-6e8ee64894b3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:59:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:51,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:59:51,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:59:51,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:59:51,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082422933] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:59:51,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1165730447] [2022-11-03 01:59:51,266 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-11-03 01:59:51,266 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:59:51,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:59:51,267 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:59:51,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:00:34,672 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 02:00:34,998 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 266 for LOIs [2022-11-03 02:00:36,967 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-03 02:00:37,004 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 02:00:37,351 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-11-03 02:00:40,552 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 276 for LOIs [2022-11-03 02:00:55,599 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 224 for LOIs [2022-11-03 02:00:55,634 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-11-03 02:00:55,705 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-11-03 02:00:55,745 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-03 02:00:57,737 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-11-03 02:00:57,779 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-03 02:00:57,825 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:01:11,103 WARN L234 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 444 DAG size of output: 243 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:16,715 WARN L234 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:46,921 WARN L234 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 502 DAG size of output: 336 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:54,037 WARN L234 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 512 DAG size of output: 314 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:06,896 WARN L234 SmtUtils]: Spent 11.55s on a formula simplification. DAG size of input: 587 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:19,894 WARN L234 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 589 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:43,538 WARN L234 SmtUtils]: Spent 22.18s on a formula simplification. DAG size of input: 588 DAG size of output: 461 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:51,624 WARN L234 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 573 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:15,357 WARN L234 SmtUtils]: Spent 13.61s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)