./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS --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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- 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-8393723 [2022-11-19 08:28:25,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:28:25,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:28:25,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:28:25,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:28:25,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:28:25,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:28:25,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:28:25,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:28:25,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:28:25,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:28:25,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:28:25,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:28:25,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:28:25,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:28:25,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:28:25,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:28:25,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:28:25,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:28:25,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:28:25,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:28:25,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:28:25,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:28:25,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:28:25,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:28:25,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:28:25,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:28:25,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:28:25,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:28:25,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:28:25,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:28:25,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:28:25,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:28:25,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:28:25,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:28:25,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:28:25,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:28:25,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:28:25,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:28:25,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:28:25,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:28:25,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:28:25,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:28:25,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:28:25,887 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:28:25,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:28:25,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:28:25,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:28:25,888 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:28:25,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:28:25,889 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:28:25,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:28:25,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:28:25,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:28:25,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:28:25,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:28:25,891 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:28:25,891 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:28:25,891 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:28:25,891 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:28:25,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:28:25,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:28:25,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:28:25,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:28:25,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:28:25,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:28:25,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:28:25,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:28:25,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:28:25,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:28:25,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:28:25,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:28:25,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:28:25,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:28:25,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:25,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:28:25,896 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:28:25,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:28:25,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:28:25,897 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:28:25,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:28:25,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:28:25,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:28:25,897 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_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2022-11-19 08:28:26,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:28:26,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:28:26,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:28:26,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:28:26,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:28:26,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-11-19 08:28:26,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/data/351be4a9a/33831c4480dc42e89c0def65e3972df2/FLAG27e2def27 [2022-11-19 08:28:26,904 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:28:26,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2022-11-19 08:28:26,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/data/351be4a9a/33831c4480dc42e89c0def65e3972df2/FLAG27e2def27 [2022-11-19 08:28:27,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/data/351be4a9a/33831c4480dc42e89c0def65e3972df2 [2022-11-19 08:28:27,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:28:27,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:28:27,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:27,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:28:27,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:28:27,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:27,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0a1cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27, skipping insertion in model container [2022-11-19 08:28:27,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:27,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:28:27,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:28:27,665 WARN L234 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_12382614-667f-412c-86ba-2690930ad036/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-11-19 08:28:27,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:27,853 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:28:27,893 WARN L234 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_12382614-667f-412c-86ba-2690930ad036/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2022-11-19 08:28:27,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:27,969 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:28:27,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27 WrapperNode [2022-11-19 08:28:27,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:27,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:27,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:28:27,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:28:27,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,051 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 813 [2022-11-19 08:28:28,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:28,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:28:28,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:28:28,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:28:28,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:28:28,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:28:28,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:28:28,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:28:28,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (1/1) ... [2022-11-19 08:28:28,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:28,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:28,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:28:28,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:28:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 08:28:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 08:28:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 08:28:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 08:28:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 08:28:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 08:28:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-19 08:28:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-19 08:28:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 08:28:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 08:28:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 08:28:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 08:28:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 08:28:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 08:28:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 08:28:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 08:28:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 08:28:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 08:28:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 08:28:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 08:28:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 08:28:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:28:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 08:28:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 08:28:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 08:28:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 08:28:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 08:28:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 08:28:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 08:28:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 08:28:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 08:28:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 08:28:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 08:28:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 08:28:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 08:28:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 08:28:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:28:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 08:28:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 08:28:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 08:28:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 08:28:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:28:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:28:28,420 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:28:28,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:28:29,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:28:29,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:28:29,806 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:28:29,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:29 BoogieIcfgContainer [2022-11-19 08:28:29,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:28:29,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:28:29,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:28:29,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:28:29,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:28:27" (1/3) ... [2022-11-19 08:28:29,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecce3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:29, skipping insertion in model container [2022-11-19 08:28:29,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:27" (2/3) ... [2022-11-19 08:28:29,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecce3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:29, skipping insertion in model container [2022-11-19 08:28:29,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:29" (3/3) ... [2022-11-19 08:28:29,821 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2022-11-19 08:28:29,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:28:29,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:28:29,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:28:29,932 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;@63b0ee80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:28:29,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:28:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-19 08:28:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 08:28:29,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:29,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:29,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:29,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1192879232, now seen corresponding path program 1 times [2022-11-19 08:28:29,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:29,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225957418] [2022-11-19 08:28:29,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:29,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:30,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:30,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225957418] [2022-11-19 08:28:30,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225957418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:30,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:30,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:28:30,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958632988] [2022-11-19 08:28:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:30,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:28:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:30,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:28:30,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:28:30,494 INFO L87 Difference]: Start difference. First operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:30,668 INFO L93 Difference]: Finished difference Result 220 states and 293 transitions. [2022-11-19 08:28:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:28:30,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-19 08:28:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:30,691 INFO L225 Difference]: With dead ends: 220 [2022-11-19 08:28:30,695 INFO L226 Difference]: Without dead ends: 153 [2022-11-19 08:28:30,701 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 [2022-11-19 08:28:30,705 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:30,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-19 08:28:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-19 08:28:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 89 states have internal predecessors, (113), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 08:28:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2022-11-19 08:28:30,793 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 61 [2022-11-19 08:28:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:30,795 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2022-11-19 08:28:30,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:30,798 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2022-11-19 08:28:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 08:28:30,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:30,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:30,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:28:30,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:30,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1809284070, now seen corresponding path program 1 times [2022-11-19 08:28:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:30,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621546939] [2022-11-19 08:28:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:31,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:31,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621546939] [2022-11-19 08:28:31,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621546939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:31,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:31,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:31,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211957696] [2022-11-19 08:28:31,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:31,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:28:31,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:28:31,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:31,058 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:31,209 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2022-11-19 08:28:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:28:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-19 08:28:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:31,212 INFO L225 Difference]: With dead ends: 216 [2022-11-19 08:28:31,213 INFO L226 Difference]: Without dead ends: 155 [2022-11-19 08:28:31,214 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 [2022-11-19 08:28:31,216 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:31,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:31,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-19 08:28:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-19 08:28:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 91 states have internal predecessors, (115), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 08:28:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 206 transitions. [2022-11-19 08:28:31,241 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 206 transitions. Word has length 62 [2022-11-19 08:28:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:31,243 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 206 transitions. [2022-11-19 08:28:31,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 206 transitions. [2022-11-19 08:28:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 08:28:31,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:31,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:31,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:28:31,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:31,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:31,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1996307456, now seen corresponding path program 1 times [2022-11-19 08:28:31,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:31,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93071694] [2022-11-19 08:28:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:31,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:31,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:31,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93071694] [2022-11-19 08:28:31,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93071694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:31,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:31,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:28:31,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947852558] [2022-11-19 08:28:31,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:31,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:28:31,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:28:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:31,411 INFO L87 Difference]: Start difference. First operand 155 states and 206 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:31,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:31,540 INFO L93 Difference]: Finished difference Result 345 states and 479 transitions. [2022-11-19 08:28:31,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:28:31,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-11-19 08:28:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:31,548 INFO L225 Difference]: With dead ends: 345 [2022-11-19 08:28:31,548 INFO L226 Difference]: Without dead ends: 208 [2022-11-19 08:28:31,552 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 [2022-11-19 08:28:31,557 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 59 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:31,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 362 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:28:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-19 08:28:31,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2022-11-19 08:28:31,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 123 states have (on average 1.3821138211382114) internal successors, (170), 125 states have internal predecessors, (170), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-11-19 08:28:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 289 transitions. [2022-11-19 08:28:31,587 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 289 transitions. Word has length 67 [2022-11-19 08:28:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:31,589 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 289 transitions. [2022-11-19 08:28:31,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:28:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 289 transitions. [2022-11-19 08:28:31,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 08:28:31,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:31,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:31,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:28:31,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:31,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash 998637404, now seen corresponding path program 1 times [2022-11-19 08:28:31,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:31,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643157338] [2022-11-19 08:28:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:31,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:31,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:31,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643157338] [2022-11-19 08:28:31,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643157338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:28:31,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739568829] [2022-11-19 08:28:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:31,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:31,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:31,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:31,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:28:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:32,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:28:32,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:32,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:28:32,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739568829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:32,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1608889031] [2022-11-19 08:28:32,392 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-11-19 08:28:32,392 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:32,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:32,404 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:32,404 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:29:05,145 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-19 08:29:05,510 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 08:29:05,831 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 245 for LOIs [2022-11-19 08:29:07,483 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-11-19 08:29:07,528 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 247 for LOIs [2022-11-19 08:29:08,237 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 250 for LOIs [2022-11-19 08:29:11,724 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 241 for LOIs [2022-11-19 08:29:11,755 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 238 for LOIs [2022-11-19 08:29:11,806 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 469 for LOIs [2022-11-19 08:29:16,720 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 227 for LOIs [2022-11-19 08:29:16,757 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:30:04,454 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:11,177 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 567 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:20,657 WARN L233 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 569 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:27,592 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 569 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:34,500 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 567 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:44,748 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 469 DAG size of output: 256 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:51,799 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 491 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:31:24,615 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 493 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:31:37,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1608889031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:37,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:31:37,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-11-19 08:31:37,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907404694] [2022-11-19 08:31:37,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:37,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-19 08:31:37,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:37,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-19 08:31:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2819, Unknown=0, NotChecked=0, Total=2970 [2022-11-19 08:31:37,847 INFO L87 Difference]: Start difference. First operand 203 states and 289 transitions. Second operand has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:31:50,417 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 486 DAG size of output: 377 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:32:44,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:44,416 INFO L93 Difference]: Finished difference Result 586 states and 917 transitions. [2022-11-19 08:32:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-19 08:32:44,417 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 68 [2022-11-19 08:32:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:44,420 INFO L225 Difference]: With dead ends: 586 [2022-11-19 08:32:44,420 INFO L226 Difference]: Without dead ends: 401 [2022-11-19 08:32:44,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 178.7s TimeCoverageRelationStatistics Valid=222, Invalid=3938, Unknown=0, NotChecked=0, Total=4160 [2022-11-19 08:32:44,424 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 240 mSDsluCounter, 4943 mSDsCounter, 0 mSdLazyCounter, 6932 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 6965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 6932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:44,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 5182 Invalid, 6965 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [33 Valid, 6932 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2022-11-19 08:32:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-19 08:32:44,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 297. [2022-11-19 08:32:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 201 states have (on average 1.4427860696517414) internal successors, (290), 204 states have internal predecessors, (290), 69 states have call successors, (69), 28 states have call predecessors, (69), 26 states have return successors, (69), 64 states have call predecessors, (69), 68 states have call successors, (69) [2022-11-19 08:32:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 428 transitions. [2022-11-19 08:32:44,669 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 428 transitions. Word has length 68 [2022-11-19 08:32:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:44,670 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 428 transitions. [2022-11-19 08:32:44,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:32:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 428 transitions. [2022-11-19 08:32:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 08:32:44,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:44,674 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:44,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:32:44,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:44,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash 929743851, now seen corresponding path program 1 times [2022-11-19 08:32:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:44,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161416354] [2022-11-19 08:32:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:32:44,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:44,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161416354] [2022-11-19 08:32:44,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161416354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:44,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:45,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:45,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135043829] [2022-11-19 08:32:45,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:45,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:45,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:45,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:45,003 INFO L87 Difference]: Start difference. First operand 297 states and 428 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 08:32:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:45,381 INFO L93 Difference]: Finished difference Result 681 states and 1012 transitions. [2022-11-19 08:32:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:45,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-11-19 08:32:45,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:45,387 INFO L225 Difference]: With dead ends: 681 [2022-11-19 08:32:45,387 INFO L226 Difference]: Without dead ends: 422 [2022-11-19 08:32:45,388 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 [2022-11-19 08:32:45,389 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 57 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:45,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 381 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:32:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-11-19 08:32:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 415. [2022-11-19 08:32:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 291 states have internal predecessors, (424), 100 states have call successors, (100), 28 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 99 states have call successors, (100) [2022-11-19 08:32:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 624 transitions. [2022-11-19 08:32:45,619 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 624 transitions. Word has length 73 [2022-11-19 08:32:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:45,620 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 624 transitions. [2022-11-19 08:32:45,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 08:32:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 624 transitions. [2022-11-19 08:32:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:32:45,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:45,623 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:45,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:32:45,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1228435594, now seen corresponding path program 1 times [2022-11-19 08:32:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:45,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022563570] [2022-11-19 08:32:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:32:45,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:45,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022563570] [2022-11-19 08:32:45,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022563570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:32:45,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158890296] [2022-11-19 08:32:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:45,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:45,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:32:45,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:32:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:46,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:32:46,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:32:46,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:32:46,159 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:32:46,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158890296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:32:46,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1121809588] [2022-11-19 08:32:46,163 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 08:32:46,164 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:32:46,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:32:46,165 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:32:46,165 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:33:23,516 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 08:33:23,824 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 08:33:24,137 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:33:41,804 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:16,621 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:27,181 WARN L233 SmtUtils]: Spent 10.29s on a formula simplification. DAG size of input: 570 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:34,371 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 572 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:44,211 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 572 DAG size of output: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:54,149 WARN L233 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 570 DAG size of output: 395 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:02,093 WARN L233 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 570 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:10,072 WARN L233 SmtUtils]: Spent 7.58s on a formula simplification. DAG size of input: 568 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:14,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1121809588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:14,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:35:14,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 08:35:14,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014481280] [2022-11-19 08:35:14,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:14,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 08:35:14,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:14,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 08:35:14,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:35:14,164 INFO L87 Difference]: Start difference. First operand 415 states and 624 transitions. Second operand has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 08:35:21,441 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 504 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:26,863 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 417 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:32,312 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 421 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:37,737 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 419 DAG size of output: 383 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:43,253 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 412 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:48,597 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 410 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:05,178 INFO L93 Difference]: Finished difference Result 798 states and 1239 transitions. [2022-11-19 08:36:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-19 08:36:05,179 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-11-19 08:36:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:05,184 INFO L225 Difference]: With dead ends: 798 [2022-11-19 08:36:05,184 INFO L226 Difference]: Without dead ends: 513 [2022-11-19 08:36:05,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 150.7s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-11-19 08:36:05,188 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 277 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:05,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2594 Invalid, 2082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 08:36:05,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-19 08:36:05,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 443. [2022-11-19 08:36:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 313 states have (on average 1.4696485623003195) internal successors, (460), 317 states have internal predecessors, (460), 102 states have call successors, (102), 29 states have call predecessors, (102), 27 states have return successors, (102), 96 states have call predecessors, (102), 101 states have call successors, (102) [2022-11-19 08:36:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 664 transitions. [2022-11-19 08:36:05,656 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 664 transitions. Word has length 74 [2022-11-19 08:36:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:05,657 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 664 transitions. [2022-11-19 08:36:05,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 08:36:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 664 transitions. [2022-11-19 08:36:05,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 08:36:05,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:05,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:05,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 08:36:05,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:36:05,867 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:05,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1685242986, now seen corresponding path program 1 times [2022-11-19 08:36:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:05,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032035371] [2022-11-19 08:36:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:05,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:36:06,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:06,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032035371] [2022-11-19 08:36:06,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032035371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:36:06,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166124442] [2022-11-19 08:36:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:06,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:36:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:06,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:36:06,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:36:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:06,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:36:06,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:36:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:36:06,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:36:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:36:06,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166124442] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:36:06,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [593248128] [2022-11-19 08:36:06,605 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-19 08:36:06,606 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:36:06,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:36:06,607 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:36:06,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:36:42,302 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-19 08:36:42,612 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 229 for LOIs [2022-11-19 08:36:42,676 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 228 for LOIs [2022-11-19 08:36:42,756 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 218 for LOIs [2022-11-19 08:36:44,016 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-19 08:36:44,092 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-11-19 08:36:44,123 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 08:36:44,448 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 218 for LOIs [2022-11-19 08:36:45,043 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 223 for LOIs [2022-11-19 08:36:47,073 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-11-19 08:36:47,103 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 416 for LOIs [2022-11-19 08:36:48,737 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 198 for LOIs [2022-11-19 08:36:48,765 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:37:06,481 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:37:40,165 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 514 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:38:05,972 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 416 DAG size of output: 229 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:38:43,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [593248128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:43,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:38:43,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-19 08:38:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489065007] [2022-11-19 08:38:43,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:43,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-19 08:38:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-19 08:38:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3267, Unknown=0, NotChecked=0, Total=3422 [2022-11-19 08:38:43,616 INFO L87 Difference]: Start difference. First operand 443 states and 664 transitions. Second operand has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 08:39:49,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:39:49,292 INFO L93 Difference]: Finished difference Result 902 states and 1380 transitions. [2022-11-19 08:39:49,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-19 08:39:49,293 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 77 [2022-11-19 08:39:49,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:39:49,298 INFO L225 Difference]: With dead ends: 902 [2022-11-19 08:39:49,298 INFO L226 Difference]: Without dead ends: 612 [2022-11-19 08:39:49,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 149.1s TimeCoverageRelationStatistics Valid=237, Invalid=4593, Unknown=0, NotChecked=0, Total=4830 [2022-11-19 08:39:49,302 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 267 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 7330 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 5205 SdHoareTripleChecker+Invalid, 7364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 7330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:39:49,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 5205 Invalid, 7364 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [34 Valid, 7330 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time] [2022-11-19 08:39:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-11-19 08:39:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 527. [2022-11-19 08:39:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 377 states have (on average 1.4509283819628647) internal successors, (547), 383 states have internal predecessors, (547), 114 states have call successors, (114), 39 states have call predecessors, (114), 35 states have return successors, (114), 104 states have call predecessors, (114), 113 states have call successors, (114) [2022-11-19 08:39:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 775 transitions. [2022-11-19 08:39:49,793 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 775 transitions. Word has length 77 [2022-11-19 08:39:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:39:49,794 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 775 transitions. [2022-11-19 08:39:49,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 08:39:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 775 transitions. [2022-11-19 08:39:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:39:49,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:39:49,798 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] [2022-11-19 08:39:49,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 08:39:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 08:39:50,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:39:50,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:39:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash -495019339, now seen corresponding path program 1 times [2022-11-19 08:39:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:39:50,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655886397] [2022-11-19 08:39:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:50,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:39:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 08:39:50,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:39:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655886397] [2022-11-19 08:39:50,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655886397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:39:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973330916] [2022-11-19 08:39:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:50,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:39:50,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:39:50,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:39:50,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12382614-667f-412c-86ba-2690930ad036/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:39:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:50,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:39:50,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:39:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:39:50,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:39:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:39:50,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973330916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:39:50,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [857808814] [2022-11-19 08:39:50,843 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 08:39:50,844 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:39:50,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:39:50,846 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:39:50,847 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:41:31,195 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 08:41:31,568 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2022-11-19 08:41:32,002 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 452 for LOIs [2022-11-19 08:42:01,481 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 442 for LOIs [2022-11-19 08:42:01,822 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 450 for LOIs [2022-11-19 08:42:06,399 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 247 for LOIs [2022-11-19 08:42:13,860 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 434 for LOIs [2022-11-19 08:42:14,178 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2022-11-19 08:42:14,223 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 444 for LOIs [2022-11-19 08:42:15,143 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 430 for LOIs [2022-11-19 08:42:15,499 INFO L180 IcfgInterpreter]: Interpretation finished