./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/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_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/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_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/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 c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 --- 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 14:05:48,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:05:48,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:05:48,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:05:48,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:05:48,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:05:48,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:05:48,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:05:48,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:05:48,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:05:48,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:05:48,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:05:48,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:05:48,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:05:48,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:05:48,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:05:48,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:05:48,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:05:48,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:05:48,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:05:48,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:05:48,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:05:48,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:05:48,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:05:48,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:05:48,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:05:48,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:05:48,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:05:48,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:05:48,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:05:48,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:05:48,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:05:48,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:05:48,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:05:48,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:05:48,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:05:48,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:05:48,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:05:48,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:05:48,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:05:48,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:05:48,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:05:48,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:05:48,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:05:48,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:05:48,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:05:48,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:05:48,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:05:48,312 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:05:48,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:05:48,313 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:05:48,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:05:48,313 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:05:48,314 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:05:48,314 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:05:48,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:05:48,314 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:05:48,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:05:48,315 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:05:48,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:05:48,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:05:48,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:05:48,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:05:48,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:05:48,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:05:48,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:05:48,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:05:48,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:05:48,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:05:48,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:05:48,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:05:48,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:05:48,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:05:48,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:05:48,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:48,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:05:48,319 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:05:48,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:05:48,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:05:48,320 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:05:48,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:05:48,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:05:48,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:05:48,320 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_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 [2022-11-23 14:05:48,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:05:48,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:05:48,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:05:48,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:05:48,674 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:05:48,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2022-11-23 14:05:51,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:05:52,193 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:05:52,193 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2022-11-23 14:05:52,213 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/data/b0589c64a/24b3bac0353f428fbdf47b0f24ca2884/FLAGce18bc619 [2022-11-23 14:05:52,228 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/data/b0589c64a/24b3bac0353f428fbdf47b0f24ca2884 [2022-11-23 14:05:52,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:05:52,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:05:52,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:52,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:05:52,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:05:52,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:52" (1/1) ... [2022-11-23 14:05:52,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f6b46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:52, skipping insertion in model container [2022-11-23 14:05:52,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:52" (1/1) ... [2022-11-23 14:05:52,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:05:52,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:52,800 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_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2022-11-23 14:05:52,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:52,955 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:53,034 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_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2022-11-23 14:05:53,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:53,117 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:53,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53 WrapperNode [2022-11-23 14:05:53,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:53,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:53,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:53,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:53,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,246 INFO L138 Inliner]: procedures = 131, calls = 217, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1009 [2022-11-23 14:05:53,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:53,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:53,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:53,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:53,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:53,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:53,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:53,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:53,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (1/1) ... [2022-11-23 14:05:53,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:53,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:53,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 14:05:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 14:05:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 14:05:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 14:05:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 14:05:53,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 14:05:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:05:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:05:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:05:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:05:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:05:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:05:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:05:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:05:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 14:05:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 14:05:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:05:53,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:05:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:05:53,426 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:05:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:05:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:05:53,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:05:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:05:53,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:05:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:05:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:05:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 14:05:53,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 14:05:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:05:53,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:05:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:05:53,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:05:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:05:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:05:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:05:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:05:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:05:53,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:05:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 14:05:53,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 14:05:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:05:53,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:05:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:05:53,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:05:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:05:53,437 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:05:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:53,674 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:53,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:54,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:55,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:55,387 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:05:55,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:55 BoogieIcfgContainer [2022-11-23 14:05:55,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:55,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:55,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:55,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:55,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:52" (1/3) ... [2022-11-23 14:05:55,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517c049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:55, skipping insertion in model container [2022-11-23 14:05:55,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:53" (2/3) ... [2022-11-23 14:05:55,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517c049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:55, skipping insertion in model container [2022-11-23 14:05:55,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:55" (3/3) ... [2022-11-23 14:05:55,405 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2022-11-23 14:05:55,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:55,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:05:55,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:05:55,520 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;@74234fc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:05:55,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:05:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-23 14:05:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-23 14:05:55,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:55,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:55,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1236814322, now seen corresponding path program 1 times [2022-11-23 14:05:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:55,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841184987] [2022-11-23 14:05:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:56,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:56,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841184987] [2022-11-23 14:05:56,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841184987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:56,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:56,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:05:56,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249658557] [2022-11-23 14:05:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:56,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:05:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:56,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:05:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:05:56,074 INFO L87 Difference]: Start difference. First operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:56,296 INFO L93 Difference]: Finished difference Result 313 states and 412 transitions. [2022-11-23 14:05:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:05:56,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2022-11-23 14:05:56,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:56,311 INFO L225 Difference]: With dead ends: 313 [2022-11-23 14:05:56,312 INFO L226 Difference]: Without dead ends: 195 [2022-11-23 14:05:56,316 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 14:05:56,320 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:56,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-23 14:05:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-23 14:05:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 116 states have internal predecessors, (145), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-23 14:05:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 260 transitions. [2022-11-23 14:05:56,413 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 260 transitions. Word has length 92 [2022-11-23 14:05:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:56,415 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 260 transitions. [2022-11-23 14:05:56,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 260 transitions. [2022-11-23 14:05:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 14:05:56,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:56,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:56,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:05:56,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1804335174, now seen corresponding path program 1 times [2022-11-23 14:05:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:56,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199730366] [2022-11-23 14:05:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:56,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:56,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199730366] [2022-11-23 14:05:56,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199730366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:56,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:56,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:05:56,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453483725] [2022-11-23 14:05:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:56,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:05:56,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:56,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:05:56,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:05:56,800 INFO L87 Difference]: Start difference. First operand 195 states and 260 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:56,941 INFO L93 Difference]: Finished difference Result 309 states and 400 transitions. [2022-11-23 14:05:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:05:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-23 14:05:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:56,944 INFO L225 Difference]: With dead ends: 309 [2022-11-23 14:05:56,944 INFO L226 Difference]: Without dead ends: 197 [2022-11-23 14:05:56,945 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 14:05:56,947 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:56,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-23 14:05:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-11-23 14:05:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 118 states have internal predecessors, (147), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-23 14:05:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2022-11-23 14:05:56,974 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 93 [2022-11-23 14:05:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:56,975 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2022-11-23 14:05:56,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2022-11-23 14:05:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 14:05:56,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:56,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:56,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:05:56,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:56,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1396224630, now seen corresponding path program 1 times [2022-11-23 14:05:56,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:56,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505308581] [2022-11-23 14:05:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:56,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:57,265 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:57,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:57,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505308581] [2022-11-23 14:05:57,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505308581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:57,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:57,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:05:57,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874060574] [2022-11-23 14:05:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:57,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:05:57,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:57,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:05:57,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:05:57,272 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:57,422 INFO L93 Difference]: Finished difference Result 424 states and 583 transitions. [2022-11-23 14:05:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:05:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2022-11-23 14:05:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:57,430 INFO L225 Difference]: With dead ends: 424 [2022-11-23 14:05:57,430 INFO L226 Difference]: Without dead ends: 245 [2022-11-23 14:05:57,436 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 14:05:57,440 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 57 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:57,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 460 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:57,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-23 14:05:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2022-11-23 14:05:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 150 states have internal predecessors, (200), 69 states have call successors, (69), 23 states have call predecessors, (69), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-23 14:05:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 337 transitions. [2022-11-23 14:05:57,474 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 337 transitions. Word has length 98 [2022-11-23 14:05:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:57,475 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 337 transitions. [2022-11-23 14:05:57,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:05:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 337 transitions. [2022-11-23 14:05:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-23 14:05:57,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:57,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:57,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:05:57,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:57,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:57,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2074483755, now seen corresponding path program 1 times [2022-11-23 14:05:57,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:57,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572101106] [2022-11-23 14:05:57,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:57,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:57,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:57,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572101106] [2022-11-23 14:05:57,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572101106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:05:57,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822741439] [2022-11-23 14:05:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:57,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:57,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:57,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:57,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:05:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:58,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:05:58,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:58,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:05:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:05:58,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822741439] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:05:58,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2053130839] [2022-11-23 14:05:58,306 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-23 14:05:58,307 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:05:58,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:05:58,317 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:05:58,317 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:06:28,308 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 14:06:28,592 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:06:28,919 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:07:01,313 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:07,447 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 486 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:21,748 WARN L233 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:42,216 WARN L233 SmtUtils]: Spent 20.14s on a formula simplification. DAG size of input: 577 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:53,277 WARN L233 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 579 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:13,504 WARN L233 SmtUtils]: Spent 19.86s on a formula simplification. DAG size of input: 578 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:33,649 WARN L233 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 576 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:41,353 WARN L233 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 545 DAG size of output: 392 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:41,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2053130839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:41,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:08:41,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-23 14:08:41,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178591445] [2022-11-23 14:08:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:41,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 14:08:41,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:41,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 14:08:41,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:08:41,366 INFO L87 Difference]: Start difference. First operand 240 states and 337 transitions. Second operand has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 14:08:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:50,061 INFO L93 Difference]: Finished difference Result 559 states and 835 transitions. [2022-11-23 14:08:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:08:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2022-11-23 14:08:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:50,064 INFO L225 Difference]: With dead ends: 559 [2022-11-23 14:08:50,064 INFO L226 Difference]: Without dead ends: 337 [2022-11-23 14:08:50,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 132.4s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:08:50,066 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 168 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:50,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 3133 Invalid, 1730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-23 14:08:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-23 14:08:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 263. [2022-11-23 14:08:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 169 states have (on average 1.378698224852071) internal successors, (233), 172 states have internal predecessors, (233), 69 states have call successors, (69), 24 states have call predecessors, (69), 24 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-23 14:08:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 370 transitions. [2022-11-23 14:08:50,254 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 370 transitions. Word has length 99 [2022-11-23 14:08:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:50,255 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 370 transitions. [2022-11-23 14:08:50,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 14:08:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 370 transitions. [2022-11-23 14:08:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 14:08:50,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:50,258 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:50,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:08:50,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:50,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:50,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1051136335, now seen corresponding path program 1 times [2022-11-23 14:08:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:50,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849062455] [2022-11-23 14:08:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:50,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 14:08:50,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:50,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849062455] [2022-11-23 14:08:50,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849062455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:50,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:50,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105962831] [2022-11-23 14:08:50,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:50,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:50,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:50,608 INFO L87 Difference]: Start difference. First operand 263 states and 370 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:08:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:51,008 INFO L93 Difference]: Finished difference Result 619 states and 904 transitions. [2022-11-23 14:08:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:51,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-11-23 14:08:51,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:51,015 INFO L225 Difference]: With dead ends: 619 [2022-11-23 14:08:51,015 INFO L226 Difference]: Without dead ends: 380 [2022-11-23 14:08:51,017 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 14:08:51,017 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 55 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 467 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 14:08:51,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 467 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:08:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-23 14:08:51,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2022-11-23 14:08:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 256 states have (on average 1.44140625) internal successors, (369), 259 states have internal predecessors, (369), 94 states have call successors, (94), 24 states have call predecessors, (94), 24 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-23 14:08:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 556 transitions. [2022-11-23 14:08:51,242 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 556 transitions. Word has length 104 [2022-11-23 14:08:51,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:51,242 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 556 transitions. [2022-11-23 14:08:51,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:08:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 556 transitions. [2022-11-23 14:08:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-23 14:08:51,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:51,246 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:51,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:08:51,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:51,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -941297127, now seen corresponding path program 1 times [2022-11-23 14:08:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:51,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385399077] [2022-11-23 14:08:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 14:08:51,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:51,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385399077] [2022-11-23 14:08:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385399077] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:08:51,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955416020] [2022-11-23 14:08:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:51,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:51,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:08:51,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:08:51,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:08:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:51,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:08:51,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:08:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 14:08:51,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:08:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 14:08:51,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955416020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:08:51,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [597293644] [2022-11-23 14:08:51,939 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-11-23 14:08:51,939 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:08:51,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:08:51,940 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:08:51,941 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:09:27,975 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 14:09:28,252 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-23 14:09:28,525 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:10:03,445 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:10:10,241 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 486 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:10:25,593 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:10:39,679 WARN L233 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 579 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:00,551 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 580 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:00,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [597293644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:00,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:11:00,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:11:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218952037] [2022-11-23 14:11:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:00,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:11:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:11:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:11:00,559 INFO L87 Difference]: Start difference. First operand 375 states and 556 transitions. Second operand has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-23 14:11:09,454 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 536 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:16,507 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 545 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:23,993 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 546 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:31,429 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 544 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:37,917 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 531 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:44,664 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 527 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:51,759 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 532 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:11:58,970 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 534 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:12:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:12:13,767 INFO L93 Difference]: Finished difference Result 846 states and 1314 transitions. [2022-11-23 14:12:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 14:12:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 105 [2022-11-23 14:12:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:12:13,772 INFO L225 Difference]: With dead ends: 846 [2022-11-23 14:12:13,772 INFO L226 Difference]: Without dead ends: 534 [2022-11-23 14:12:13,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 154.3s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-11-23 14:12:13,775 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 220 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:12:13,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 3549 Invalid, 2208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 14:12:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-23 14:12:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 437. [2022-11-23 14:12:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 314 states have (on average 1.4904458598726114) internal successors, (468), 319 states have internal predecessors, (468), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2022-11-23 14:12:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 661 transitions. [2022-11-23 14:12:14,192 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 661 transitions. Word has length 105 [2022-11-23 14:12:14,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:12:14,193 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 661 transitions. [2022-11-23 14:12:14,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-23 14:12:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 661 transitions. [2022-11-23 14:12:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-23 14:12:14,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:12:14,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:14,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:12:14,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:12:14,404 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:12:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:12:14,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1063871937, now seen corresponding path program 1 times [2022-11-23 14:12:14,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:12:14,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873165504] [2022-11-23 14:12:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:12:14,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:12:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:12:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:12:14,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:12:14,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873165504] [2022-11-23 14:12:14,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873165504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:12:14,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793854501] [2022-11-23 14:12:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:12:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:12:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:12:14,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:12:14,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:12:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:12:15,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:12:15,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:12:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:12:15,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:12:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:12:15,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793854501] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:12:15,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1616494073] [2022-11-23 14:12:15,167 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-23 14:12:15,167 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:12:15,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:12:15,168 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:12:15,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:13:15,335 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:13:15,656 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 429 for LOIs [2022-11-23 14:13:15,963 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 442 for LOIs [2022-11-23 14:13:16,286 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 249 for LOIs [2022-11-23 14:13:16,366 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:13:16,685 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:13:29,883 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:13:35,408 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:13:54,387 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:14:01,312 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 486 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:14:06,689 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 498 DAG size of output: 292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:14:17,134 WARN L233 SmtUtils]: Spent 8.98s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:14:34,257 WARN L233 SmtUtils]: Spent 16.78s on a formula simplification. DAG size of input: 619 DAG size of output: 483 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:14:56,807 WARN L233 SmtUtils]: Spent 12.52s on a formula simplification. DAG size of input: 558 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:04,019 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 551 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:18,989 WARN L233 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 537 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:24,607 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 429 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:30,084 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 478 DAG size of output: 316 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:31,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1616494073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:15:31,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:15:31,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-23 14:15:31,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375227725] [2022-11-23 14:15:31,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:15:31,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 14:15:31,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:15:31,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 14:15:31,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:15:31,347 INFO L87 Difference]: Start difference. First operand 437 states and 661 transitions. Second operand has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-23 14:15:43,552 WARN L233 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 537 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:15:50,286 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 585 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:16:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:16:07,853 INFO L93 Difference]: Finished difference Result 908 states and 1415 transitions. [2022-11-23 14:16:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 14:16:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 108 [2022-11-23 14:16:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:16:07,858 INFO L225 Difference]: With dead ends: 908 [2022-11-23 14:16:07,858 INFO L226 Difference]: Without dead ends: 596 [2022-11-23 14:16:07,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 151.4s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 14:16:07,861 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 114 mSDsluCounter, 4396 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 4636 SdHoareTripleChecker+Invalid, 3856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:16:07,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 4636 Invalid, 3856 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [14 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2022-11-23 14:16:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-23 14:16:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 522. [2022-11-23 14:16:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 391 states have (on average 1.5166240409207161) internal successors, (593), 398 states have internal predecessors, (593), 102 states have call successors, (102), 28 states have call predecessors, (102), 28 states have return successors, (101), 97 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-23 14:16:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 796 transitions. [2022-11-23 14:16:08,411 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 796 transitions. Word has length 108 [2022-11-23 14:16:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:16:08,412 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 796 transitions. [2022-11-23 14:16:08,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-23 14:16:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 796 transitions. [2022-11-23 14:16:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-23 14:16:08,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:16:08,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:16:08,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:16:08,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 14:16:08,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:16:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:16:08,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1569121407, now seen corresponding path program 1 times [2022-11-23 14:16:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:16:08,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968979257] [2022-11-23 14:16:08,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:16:08,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:16:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:16:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:16:08,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:16:08,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968979257] [2022-11-23 14:16:08,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968979257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:16:08,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57935077] [2022-11-23 14:16:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:16:08,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:16:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:16:08,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:16:08,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0328fefd-dfb7-47b4-ad43-b83efe62aaa3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:16:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:16:09,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:16:09,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:16:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:16:09,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:16:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 14:16:09,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57935077] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:16:09,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1855113344] [2022-11-23 14:16:09,339 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-23 14:16:09,339 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:16:09,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:16:09,341 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:16:09,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:17:00,757 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 14:17:01,060 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:17:01,430 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-23 14:17:03,284 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-23 14:17:34,066 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-23 14:17:34,690 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 431 for LOIs [2022-11-23 14:17:38,981 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 431 for LOIs [2022-11-23 14:17:39,579 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-23 14:17:39,649 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-11-23 14:17:39,689 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 478 for LOIs [2022-11-23 14:17:44,540 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-23 14:17:46,445 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:17:53,424 WARN L233 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 505 DAG size of output: 494 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:18:27,555 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:18:34,034 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 486 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:18:48,893 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:19:02,630 WARN L233 SmtUtils]: Spent 8.02s on a formula simplification. DAG size of input: 567 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:19:10,898 WARN L233 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 563 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:19:19,855 WARN L233 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 567 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)