./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW --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 8cc51a90eddcdd1da62e020cc4e0c6e4b67a610d36952c31f8c5cbe15c29949c --- 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-4e7fbc6 [2022-11-23 14:50:03,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:50:03,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:50:03,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:50:03,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:50:03,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:50:03,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:50:03,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:50:03,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:50:03,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:50:03,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:50:03,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:50:03,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:50:03,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:50:03,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:50:03,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:50:03,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:50:03,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:50:03,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:50:03,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:50:03,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:50:03,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:50:03,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:50:03,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:50:03,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:50:03,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:50:03,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:50:03,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:50:03,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:50:03,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:50:03,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:50:03,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:50:03,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:50:03,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:50:03,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:50:03,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:50:03,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:50:03,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:50:03,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:50:03,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:50:03,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:50:03,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:50:03,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:50:03,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:50:03,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:50:03,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:50:03,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:50:03,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:50:03,234 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:50:03,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:50:03,235 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:50:03,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:50:03,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:50:03,237 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:50:03,237 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:50:03,237 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:50:03,237 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:50:03,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:50:03,238 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:50:03,238 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:50:03,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:50:03,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:50:03,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:50:03,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:50:03,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:50:03,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:50:03,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:50:03,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:50:03,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:50:03,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:50:03,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:50:03,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:50:03,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:50:03,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:50:03,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:03,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:50:03,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:50:03,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:50:03,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:50:03,243 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:50:03,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:50:03,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:50:03,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:50:03,244 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_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cc51a90eddcdd1da62e020cc4e0c6e4b67a610d36952c31f8c5cbe15c29949c [2022-11-23 14:50:03,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:50:03,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:50:03,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:50:03,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:50:03,591 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:50:03,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c [2022-11-23 14:50:06,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:06,997 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:06,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c [2022-11-23 14:50:07,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/data/83cbd6361/18ecde43e13f49a5b94caa4a7955e299/FLAG4a93f2fcb [2022-11-23 14:50:07,032 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/data/83cbd6361/18ecde43e13f49a5b94caa4a7955e299 [2022-11-23 14:50:07,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:07,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:07,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:07,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:07,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e0c19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07, skipping insertion in model container [2022-11-23 14:50:07,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:07,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:07,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:50:07,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c[15456,15469] [2022-11-23 14:50:07,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:07,739 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:50:07,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c[15456,15469] [2022-11-23 14:50:07,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:07,875 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:50:07,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07 WrapperNode [2022-11-23 14:50:07,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:07,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:07,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:50:07,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:50:07,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:07,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,000 INFO L138 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 58, calls inlined = 55, statements flattened = 1072 [2022-11-23 14:50:08,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:08,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:50:08,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:50:08,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:50:08,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,091 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:50:08,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:50:08,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:50:08,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:50:08,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (1/1) ... [2022-11-23 14:50:08,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:08,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:08,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:50:08,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:50:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:50:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:50:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 14:50:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 14:50:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:50:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:50:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 14:50:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 14:50:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:50:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:50:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:50:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:50:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:50:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:50:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 14:50:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 14:50:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:50:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:50:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:50:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:50:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:50:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:50:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:50:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:50:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:50:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:50:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:50:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:50:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:50:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:50:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-23 14:50:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-23 14:50:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:50:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:50:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 14:50:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 14:50:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:50:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:50:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:50:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:50:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:50:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:50:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:50:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:50:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:50:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:50:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:50:08,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:50:08,577 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:50:09,446 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:50:10,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:50:10,090 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:50:10,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:10 BoogieIcfgContainer [2022-11-23 14:50:10,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:50:10,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:50:10,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:50:10,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:50:10,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:07" (1/3) ... [2022-11-23 14:50:10,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e5675f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:10, skipping insertion in model container [2022-11-23 14:50:10,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:07" (2/3) ... [2022-11-23 14:50:10,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e5675f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:10, skipping insertion in model container [2022-11-23 14:50:10,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:10" (3/3) ... [2022-11-23 14:50:10,106 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product21.cil.c [2022-11-23 14:50:10,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:50:10,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:50:10,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:50:10,196 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;@3907bcbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:50:10,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:50:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-23 14:50:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-23 14:50:10,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:10,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:10,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1035230585, now seen corresponding path program 1 times [2022-11-23 14:50:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:10,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204429447] [2022-11-23 14:50:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:10,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:10,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:10,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204429447] [2022-11-23 14:50:10,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204429447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:10,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:10,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:50:10,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429804028] [2022-11-23 14:50:10,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:10,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:50:10,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:10,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:50:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:10,702 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:10,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:10,879 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2022-11-23 14:50:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:50:10,884 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-23 14:50:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:10,895 INFO L225 Difference]: With dead ends: 278 [2022-11-23 14:50:10,895 INFO L226 Difference]: Without dead ends: 182 [2022-11-23 14:50:10,903 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 [2022-11-23 14:50:10,907 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:10,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-23 14:50:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-23 14:50:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-23 14:50:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-11-23 14:50:10,981 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2022-11-23 14:50:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:10,982 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-11-23 14:50:10,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:10,983 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-11-23 14:50:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:50:10,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:10,987 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:10,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:50:10,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1042874212, now seen corresponding path program 1 times [2022-11-23 14:50:10,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:10,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884952443] [2022-11-23 14:50:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:11,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:11,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884952443] [2022-11-23 14:50:11,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884952443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:11,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:11,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087950911] [2022-11-23 14:50:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:11,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:11,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:11,311 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:11,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:11,480 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2022-11-23 14:50:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:11,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-23 14:50:11,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:11,483 INFO L225 Difference]: With dead ends: 274 [2022-11-23 14:50:11,483 INFO L226 Difference]: Without dead ends: 184 [2022-11-23 14:50:11,484 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 [2022-11-23 14:50:11,486 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:11,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-23 14:50:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-23 14:50:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-23 14:50:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2022-11-23 14:50:11,503 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2022-11-23 14:50:11,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:11,504 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2022-11-23 14:50:11,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2022-11-23 14:50:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 14:50:11,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:11,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:11,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:50:11,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2115475199, now seen corresponding path program 1 times [2022-11-23 14:50:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:11,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285194455] [2022-11-23 14:50:11,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:11,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:11,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:11,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285194455] [2022-11-23 14:50:11,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285194455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:11,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:11,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877008065] [2022-11-23 14:50:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:11,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:11,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:11,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:11,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:11,609 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:11,799 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2022-11-23 14:50:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:11,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-23 14:50:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:11,802 INFO L225 Difference]: With dead ends: 403 [2022-11-23 14:50:11,802 INFO L226 Difference]: Without dead ends: 237 [2022-11-23 14:50:11,803 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 [2022-11-23 14:50:11,805 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 59 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:11,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:11,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-23 14:50:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2022-11-23 14:50:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-23 14:50:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2022-11-23 14:50:11,833 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2022-11-23 14:50:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:11,834 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2022-11-23 14:50:11,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:50:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2022-11-23 14:50:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:50:11,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:11,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:11,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:50:11,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:11,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:11,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1454205024, now seen corresponding path program 1 times [2022-11-23 14:50:11,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:11,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598575562] [2022-11-23 14:50:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:11,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:11,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:11,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598575562] [2022-11-23 14:50:11,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598575562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:50:11,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721904543] [2022-11-23 14:50:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:11,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:11,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:12,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:12,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:50:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:12,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:12,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:12,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721904543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:12,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1648259853] [2022-11-23 14:50:12,556 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-23 14:50:12,556 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:50:12,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:50:12,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:50:12,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:50:44,777 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:50:45,112 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-23 14:50:45,465 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-11-23 14:50:47,859 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-23 14:50:47,900 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-11-23 14:50:48,882 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 266 for LOIs [2022-11-23 14:50:53,739 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 237 for LOIs [2022-11-23 14:50:53,780 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-11-23 14:50:55,849 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2022-11-23 14:50:55,893 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:51:09,746 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:16,034 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:23,032 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:29,546 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:40,607 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 480 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:56,566 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 512 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:16,779 WARN L233 SmtUtils]: Spent 19.88s on a formula simplification. DAG size of input: 581 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:27,654 WARN L233 SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 583 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:40,530 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 476 DAG size of output: 267 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:53:21,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1648259853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:21,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:53:21,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-23 14:53:21,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99299915] [2022-11-23 14:53:21,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:21,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-23 14:53:21,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:21,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-23 14:53:21,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2417, Unknown=0, NotChecked=0, Total=2550 [2022-11-23 14:53:21,710 INFO L87 Difference]: Start difference. First operand 232 states and 332 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:53:34,616 WARN L233 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 577 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:53:45,202 WARN L233 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 584 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:54:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:12,448 INFO L93 Difference]: Finished difference Result 545 states and 812 transitions. [2022-11-23 14:54:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 14:54:12,449 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 70 [2022-11-23 14:54:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:12,456 INFO L225 Difference]: With dead ends: 545 [2022-11-23 14:54:12,456 INFO L226 Difference]: Without dead ends: 331 [2022-11-23 14:54:12,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 176.8s TimeCoverageRelationStatistics Valid=176, Invalid=3130, Unknown=0, NotChecked=0, Total=3306 [2022-11-23 14:54:12,459 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 158 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 5279 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 5302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:12,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 4952 Invalid, 5302 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [23 Valid, 5279 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2022-11-23 14:54:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-23 14:54:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 286. [2022-11-23 14:54:12,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 180 states have (on average 1.3611111111111112) internal successors, (245), 184 states have internal predecessors, (245), 79 states have call successors, (79), 29 states have call predecessors, (79), 26 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-23 14:54:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 402 transitions. [2022-11-23 14:54:12,604 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 402 transitions. Word has length 70 [2022-11-23 14:54:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:12,604 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 402 transitions. [2022-11-23 14:54:12,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:54:12,605 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 402 transitions. [2022-11-23 14:54:12,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:54:12,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:12,608 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:12,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:54:12,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:12,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash -426586845, now seen corresponding path program 1 times [2022-11-23 14:54:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:12,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55963222] [2022-11-23 14:54:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:12,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:54:12,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:12,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55963222] [2022-11-23 14:54:12,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55963222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:12,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:12,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:54:12,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848937183] [2022-11-23 14:54:12,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:12,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:54:12,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:54:12,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:54:12,971 INFO L87 Difference]: Start difference. First operand 286 states and 402 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:54:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:13,299 INFO L93 Difference]: Finished difference Result 674 states and 984 transitions. [2022-11-23 14:54:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:54:13,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-23 14:54:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:13,303 INFO L225 Difference]: With dead ends: 674 [2022-11-23 14:54:13,303 INFO L226 Difference]: Without dead ends: 414 [2022-11-23 14:54:13,304 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 [2022-11-23 14:54:13,306 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 57 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:13,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 451 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:54:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-23 14:54:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 407. [2022-11-23 14:54:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 270 states have (on average 1.4259259259259258) internal successors, (385), 274 states have internal predecessors, (385), 110 states have call successors, (110), 29 states have call predecessors, (110), 26 states have return successors, (109), 105 states have call predecessors, (109), 109 states have call successors, (109) [2022-11-23 14:54:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 604 transitions. [2022-11-23 14:54:13,466 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 604 transitions. Word has length 75 [2022-11-23 14:54:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:13,466 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 604 transitions. [2022-11-23 14:54:13,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:54:13,467 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 604 transitions. [2022-11-23 14:54:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 14:54:13,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:13,470 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:13,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:54:13,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash -679073275, now seen corresponding path program 1 times [2022-11-23 14:54:13,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:13,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609853106] [2022-11-23 14:54:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:13,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:54:13,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:13,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609853106] [2022-11-23 14:54:13,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609853106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:54:13,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252297886] [2022-11-23 14:54:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:13,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:13,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:54:13,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:54:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:13,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:54:13,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:54:13,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:54:14,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252297886] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:14,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1530838797] [2022-11-23 14:54:14,026 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-23 14:54:14,026 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:54:14,028 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:54:14,028 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:54:14,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:54:57,568 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:54:57,885 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-23 14:54:58,199 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 255 for LOIs [2022-11-23 14:55:00,031 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-11-23 14:55:00,108 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 255 for LOIs [2022-11-23 14:55:00,913 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-11-23 14:55:05,732 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 236 for LOIs [2022-11-23 14:55:05,805 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 475 for LOIs [2022-11-23 14:55:11,990 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 227 for LOIs [2022-11-23 14:55:12,047 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:55:25,893 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:32,234 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:38,983 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:45,351 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:56,547 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 480 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:12,587 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 512 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:23,472 WARN L233 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 587 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:44,039 WARN L233 SmtUtils]: Spent 20.23s on a formula simplification. DAG size of input: 589 DAG size of output: 460 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:10,528 WARN L233 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 475 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:16,969 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 497 DAG size of output: 272 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:56,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1530838797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:56,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:57:56,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-11-23 14:57:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620953903] [2022-11-23 14:57:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:56,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 14:57:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 14:57:56,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=2815, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 14:57:56,930 INFO L87 Difference]: Start difference. First operand 407 states and 604 transitions. Second operand has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:58:20,195 WARN L233 SmtUtils]: Spent 16.36s on a formula simplification. DAG size of input: 561 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:54,122 WARN L233 SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 591 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:30,548 INFO L93 Difference]: Finished difference Result 868 states and 1334 transitions. [2022-11-23 14:59:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-23 14:59:30,549 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 76 [2022-11-23 14:59:30,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:30,553 INFO L225 Difference]: With dead ends: 868 [2022-11-23 14:59:30,553 INFO L226 Difference]: Without dead ends: 554 [2022-11-23 14:59:30,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 227.9s TimeCoverageRelationStatistics Valid=262, Invalid=4568, Unknown=0, NotChecked=0, Total=4830 [2022-11-23 14:59:30,557 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 249 mSDsluCounter, 5673 mSDsCounter, 0 mSdLazyCounter, 7034 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 7066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:30,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 5917 Invalid, 7066 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 7034 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time] [2022-11-23 14:59:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-23 14:59:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 439. [2022-11-23 14:59:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 298 states have (on average 1.4328859060402686) internal successors, (427), 304 states have internal predecessors, (427), 113 states have call successors, (113), 30 states have call predecessors, (113), 27 states have return successors, (112), 106 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-23 14:59:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 652 transitions. [2022-11-23 14:59:30,801 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 652 transitions. Word has length 76 [2022-11-23 14:59:30,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:30,801 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 652 transitions. [2022-11-23 14:59:30,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:59:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 652 transitions. [2022-11-23 14:59:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-23 14:59:30,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:30,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:59:30,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:59:31,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:59:31,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:59:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash 92867854, now seen corresponding path program 1 times [2022-11-23 14:59:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:31,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687380532] [2022-11-23 14:59:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:59:31,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:31,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687380532] [2022-11-23 14:59:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687380532] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:59:31,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269242983] [2022-11-23 14:59:31,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:31,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:59:31,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:59:31,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:59:31,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:59:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:31,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:59:31,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:59:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:59:31,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:59:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:59:31,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269242983] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:59:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524933244] [2022-11-23 14:59:31,637 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-23 14:59:31,637 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:59:31,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:59:31,638 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:59:31,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:00:23,448 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 15:00:23,776 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-11-23 15:00:23,843 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-11-23 15:00:23,939 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 235 for LOIs [2022-11-23 15:00:24,018 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-23 15:00:24,346 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:00:38,448 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:44,968 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:52,221 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:59,179 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:11,097 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 480 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:17,772 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 490 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:28,395 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 512 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:46,775 WARN L233 SmtUtils]: Spent 18.04s on a formula simplification. DAG size of input: 623 DAG size of output: 499 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:57,832 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 547 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:02:05,277 WARN L233 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 549 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:02:17,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1524933244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:17,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:02:17,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-23 15:02:17,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135181590] [2022-11-23 15:02:17,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:17,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 15:02:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 15:02:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:02:17,972 INFO L87 Difference]: Start difference. First operand 439 states and 652 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-23 15:02:28,319 WARN L233 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 593 DAG size of output: 395 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:02:46,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:46,228 INFO L93 Difference]: Finished difference Result 910 states and 1417 transitions. [2022-11-23 15:02:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 15:02:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-11-23 15:02:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:46,232 INFO L225 Difference]: With dead ends: 910 [2022-11-23 15:02:46,233 INFO L226 Difference]: Without dead ends: 596 [2022-11-23 15:02:46,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 124.9s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 15:02:46,235 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 115 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 3527 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:46,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 3820 Invalid, 3542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 3527 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-11-23 15:02:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-23 15:02:46,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 484. [2022-11-23 15:02:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 336 states have (on average 1.4345238095238095) internal successors, (482), 343 states have internal predecessors, (482), 117 states have call successors, (117), 33 states have call predecessors, (117), 30 states have return successors, (116), 109 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-23 15:02:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 715 transitions. [2022-11-23 15:02:46,596 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 715 transitions. Word has length 79 [2022-11-23 15:02:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 715 transitions. [2022-11-23 15:02:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-23 15:02:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 715 transitions. [2022-11-23 15:02:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-23 15:02:46,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:46,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:46,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:02:46,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:02:46,808 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:02:46,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:46,809 INFO L85 PathProgramCache]: Analyzing trace with hash 523920149, now seen corresponding path program 1 times [2022-11-23 15:02:46,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:46,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949114501] [2022-11-23 15:02:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:46,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:02:46,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949114501] [2022-11-23 15:02:46,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949114501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:02:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916531201] [2022-11-23 15:02:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:46,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:02:46,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:02:46,962 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:02:46,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1af96657-d3ff-4c8c-9c60-1f34afecbcdb/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:02:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:47,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:02:47,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:02:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:02:47,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:02:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:02:47,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916531201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:02:47,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524247016] [2022-11-23 15:02:47,411 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-23 15:02:47,411 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:02:47,412 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:02:47,412 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:02:47,412 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:03:32,337 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 15:03:32,669 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-23 15:03:33,009 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-11-23 15:03:35,066 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-11-23 15:03:35,110 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-11-23 15:03:36,064 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 269 for LOIs [2022-11-23 15:03:40,917 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-11-23 15:03:40,959 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-23 15:03:43,705 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-11-23 15:03:43,771 INFO L180 IcfgInterpreter]: Interpretation finished