./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fc432013ed2168eea9a323e37470d64fe5b972a8b4d9d4e2e5fdd67cd32ffed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:07:32,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:07:32,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:07:32,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:07:32,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:07:32,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:07:32,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:07:32,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:07:32,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:07:32,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:07:32,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:07:32,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:07:32,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:07:32,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:07:32,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:07:32,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:07:32,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:07:32,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:07:32,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:07:32,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:07:32,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:07:32,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:07:32,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:07:32,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:07:32,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:07:32,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:07:32,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:07:32,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:07:32,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:07:32,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:07:32,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:07:32,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:07:32,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:07:32,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:07:32,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:07:32,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:07:32,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:07:32,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:07:32,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:07:32,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:07:32,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:07:32,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:07:32,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:07:32,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:07:32,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:07:32,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:07:32,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:07:32,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:07:32,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:07:32,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:07:32,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:07:32,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:07:32,334 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:07:32,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:07:32,335 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:07:32,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:07:32,339 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:07:32,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:07:32,340 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:07:32,340 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:07:32,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:07:32,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:07:32,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:07:32,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:07:32,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:07:32,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:07:32,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:07:32,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:07:32,344 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:07:32,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:07:32,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:07:32,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:07:32,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:07:32,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:07:32,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:32,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:07:32,347 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:07:32,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:07:32,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:07:32,349 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:07:32,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:07:32,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:07:32,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:07:32,350 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_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fc432013ed2168eea9a323e37470d64fe5b972a8b4d9d4e2e5fdd67cd32ffed [2022-11-03 04:07:32,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:07:32,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:07:32,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:07:32,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:07:32,748 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:07:32,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec9_product28.cil.c [2022-11-03 04:07:32,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/data/1d436536e/70ef01c260d24b4891bd51576c7a377a/FLAG08434b812 [2022-11-03 04:07:33,611 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:07:33,612 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/sv-benchmarks/c/product-lines/email_spec9_product28.cil.c [2022-11-03 04:07:33,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/data/1d436536e/70ef01c260d24b4891bd51576c7a377a/FLAG08434b812 [2022-11-03 04:07:33,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/data/1d436536e/70ef01c260d24b4891bd51576c7a377a [2022-11-03 04:07:33,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:07:33,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:07:33,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:33,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:07:33,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:07:33,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:33" (1/1) ... [2022-11-03 04:07:33,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5938e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:33, skipping insertion in model container [2022-11-03 04:07:33,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:33" (1/1) ... [2022-11-03 04:07:33,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:07:33,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:07:34,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/sv-benchmarks/c/product-lines/email_spec9_product28.cil.c[63802,63815] [2022-11-03 04:07:34,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:34,745 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:07:34,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/sv-benchmarks/c/product-lines/email_spec9_product28.cil.c[63802,63815] [2022-11-03 04:07:34,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:34,885 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:07:34,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34 WrapperNode [2022-11-03 04:07:34,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:34,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:34,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:07:34,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:07:34,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:34,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:34,995 INFO L138 Inliner]: procedures = 129, calls = 213, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 868 [2022-11-03 04:07:34,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:34,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:07:34,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:07:34,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:07:35,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:07:35,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:07:35,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:07:35,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:07:35,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (1/1) ... [2022-11-03 04:07:35,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:35,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:35,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:07:35,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:07:35,215 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 04:07:35,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 04:07:35,215 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 04:07:35,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 04:07:35,216 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 04:07:35,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 04:07:35,216 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 04:07:35,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 04:07:35,216 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 04:07:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 04:07:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 04:07:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 04:07:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 04:07:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 04:07:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 04:07:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 04:07:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 04:07:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 04:07:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 04:07:35,219 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 04:07:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 04:07:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 04:07:35,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 04:07:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 04:07:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 04:07:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:07:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 04:07:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 04:07:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 04:07:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 04:07:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 04:07:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 04:07:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 04:07:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 04:07:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 04:07:35,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 04:07:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 04:07:35,222 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 04:07:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 04:07:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 04:07:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 04:07:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 04:07:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 04:07:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 04:07:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:07:35,224 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 04:07:35,224 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 04:07:35,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:07:35,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:07:35,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:07:35,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:07:36,681 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:07:37,195 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:07:37,196 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:07:37,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:37 BoogieIcfgContainer [2022-11-03 04:07:37,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:07:37,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:07:37,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:07:37,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:07:37,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:07:33" (1/3) ... [2022-11-03 04:07:37,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2886c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:37, skipping insertion in model container [2022-11-03 04:07:37,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:34" (2/3) ... [2022-11-03 04:07:37,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2886c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:37, skipping insertion in model container [2022-11-03 04:07:37,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:37" (3/3) ... [2022-11-03 04:07:37,217 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2022-11-03 04:07:37,242 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:07:37,242 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:07:37,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:07:37,342 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;@35a26c50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:07:37,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:07:37,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-03 04:07:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 04:07:37,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:37,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:37,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:37,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash -237789091, now seen corresponding path program 1 times [2022-11-03 04:07:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:37,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290922918] [2022-11-03 04:07:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:37,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:37,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290922918] [2022-11-03 04:07:37,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290922918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:37,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:37,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:07:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888657848] [2022-11-03 04:07:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:37,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:07:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:37,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:07:37,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:07:37,995 INFO L87 Difference]: Start difference. First operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:38,209 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2022-11-03 04:07:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:07:38,212 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-03 04:07:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:38,236 INFO L225 Difference]: With dead ends: 277 [2022-11-03 04:07:38,236 INFO L226 Difference]: Without dead ends: 177 [2022-11-03 04:07:38,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:07:38,253 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:38,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-03 04:07:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-03 04:07:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 04:07:38,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2022-11-03 04:07:38,340 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 61 [2022-11-03 04:07:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:38,342 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-11-03 04:07:38,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2022-11-03 04:07:38,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 04:07:38,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:38,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:38,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:07:38,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:38,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2041869761, now seen corresponding path program 1 times [2022-11-03 04:07:38,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:38,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876005089] [2022-11-03 04:07:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:38,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:38,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:38,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876005089] [2022-11-03 04:07:38,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876005089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:38,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:38,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:38,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154536106] [2022-11-03 04:07:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:38,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:38,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:38,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:38,674 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:38,887 INFO L93 Difference]: Finished difference Result 273 states and 350 transitions. [2022-11-03 04:07:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-03 04:07:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:38,891 INFO L225 Difference]: With dead ends: 273 [2022-11-03 04:07:38,891 INFO L226 Difference]: Without dead ends: 179 [2022-11-03 04:07:38,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:38,894 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:38,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-03 04:07:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-03 04:07:38,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 04:07:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2022-11-03 04:07:38,932 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 237 transitions. Word has length 62 [2022-11-03 04:07:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:38,934 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 237 transitions. [2022-11-03 04:07:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 237 transitions. [2022-11-03 04:07:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 04:07:38,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:38,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:38,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:07:38,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1503020543, now seen corresponding path program 1 times [2022-11-03 04:07:38,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:38,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496060561] [2022-11-03 04:07:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:39,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:39,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496060561] [2022-11-03 04:07:39,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496060561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:39,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:39,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:39,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891784033] [2022-11-03 04:07:39,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:39,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:39,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:39,153 INFO L87 Difference]: Start difference. First operand 179 states and 237 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:39,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:39,307 INFO L93 Difference]: Finished difference Result 388 states and 533 transitions. [2022-11-03 04:07:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:39,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-11-03 04:07:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:39,318 INFO L225 Difference]: With dead ends: 388 [2022-11-03 04:07:39,318 INFO L226 Difference]: Without dead ends: 227 [2022-11-03 04:07:39,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:39,328 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 57 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:39,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 420 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-03 04:07:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2022-11-03 04:07:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 141 states have internal predecessors, (191), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 04:07:39,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2022-11-03 04:07:39,371 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 67 [2022-11-03 04:07:39,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:39,371 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2022-11-03 04:07:39,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:07:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2022-11-03 04:07:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 04:07:39,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:39,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:39,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:07:39,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1949167652, now seen corresponding path program 1 times [2022-11-03 04:07:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:39,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223360786] [2022-11-03 04:07:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:39,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:39,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223360786] [2022-11-03 04:07:39,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223360786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:39,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104485167] [2022-11-03 04:07:39,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:39,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:39,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:39,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:39,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:07:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:39,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:07:39,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:40,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:07:40,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104485167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:07:40,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58949268] [2022-11-03 04:07:40,258 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-11-03 04:07:40,259 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:07:40,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:07:40,270 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:07:40,271 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:13,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:08:13,707 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-03 04:08:14,309 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:29,933 WARN L234 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:37,587 WARN L234 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:45,944 WARN L234 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:53,309 WARN L234 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:00,162 WARN L234 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 474 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:45,916 WARN L234 SmtUtils]: Spent 22.97s on a formula simplification. DAG size of input: 589 DAG size of output: 456 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:56,772 WARN L234 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 574 DAG size of output: 369 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:07,517 WARN L234 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 576 DAG size of output: 401 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:18,438 WARN L234 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 576 DAG size of output: 374 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:29,820 WARN L234 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 574 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:31,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [58949268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:31,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:31,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 27 [2022-11-03 04:10:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253660324] [2022-11-03 04:10:31,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:31,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:10:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:10:31,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-03 04:10:31,263 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-03 04:10:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:40,517 INFO L93 Difference]: Finished difference Result 523 states and 785 transitions. [2022-11-03 04:10:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 04:10:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 68 [2022-11-03 04:10:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:40,521 INFO L225 Difference]: With dead ends: 523 [2022-11-03 04:10:40,521 INFO L226 Difference]: Without dead ends: 319 [2022-11-03 04:10:40,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 137.0s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-03 04:10:40,524 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 142 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:40,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 3069 Invalid, 1807 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-03 04:10:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-03 04:10:40,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 245. [2022-11-03 04:10:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 160 states have (on average 1.4) internal successors, (224), 163 states have internal predecessors, (224), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 04:10:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 345 transitions. [2022-11-03 04:10:40,657 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 345 transitions. Word has length 68 [2022-11-03 04:10:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:40,658 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 345 transitions. [2022-11-03 04:10:40,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-03 04:10:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 345 transitions. [2022-11-03 04:10:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 04:10:40,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:40,660 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:40,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 04:10:40,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:40,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:40,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:40,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1203771102, now seen corresponding path program 1 times [2022-11-03 04:10:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:40,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931986716] [2022-11-03 04:10:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:40,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:10:41,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:41,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931986716] [2022-11-03 04:10:41,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931986716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:41,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:41,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:10:41,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076338360] [2022-11-03 04:10:41,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:41,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:10:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:41,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:10:41,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:41,044 INFO L87 Difference]: Start difference. First operand 245 states and 345 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:10:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:41,381 INFO L93 Difference]: Finished difference Result 583 states and 854 transitions. [2022-11-03 04:10:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:10:41,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-11-03 04:10:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:41,385 INFO L225 Difference]: With dead ends: 583 [2022-11-03 04:10:41,385 INFO L226 Difference]: Without dead ends: 362 [2022-11-03 04:10:41,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:41,387 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 55 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:41,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 430 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:10:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-03 04:10:41,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2022-11-03 04:10:41,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 247 states have (on average 1.45748987854251) internal successors, (360), 250 states have internal predecessors, (360), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-03 04:10:41,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 531 transitions. [2022-11-03 04:10:41,587 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 531 transitions. Word has length 73 [2022-11-03 04:10:41,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:41,588 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 531 transitions. [2022-11-03 04:10:41,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:10:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 531 transitions. [2022-11-03 04:10:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 04:10:41,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:41,591 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:41,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:10:41,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:41,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:41,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1780686664, now seen corresponding path program 1 times [2022-11-03 04:10:41,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:41,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996243904] [2022-11-03 04:10:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:41,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:10:41,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:41,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996243904] [2022-11-03 04:10:41,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996243904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:41,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243514461] [2022-11-03 04:10:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:41,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:41,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:41,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:41,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:10:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:42,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:42,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:10:42,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:10:42,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243514461] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:10:42,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2067290417] [2022-11-03 04:10:42,177 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-03 04:10:42,177 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:10:42,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:10:42,179 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:10:42,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:11:20,562 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:11:20,906 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-03 04:11:21,266 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:11:35,279 WARN L234 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:42,046 WARN L234 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:48,509 WARN L234 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:54,643 WARN L234 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:01,369 WARN L234 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 474 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:45,883 WARN L234 SmtUtils]: Spent 22.57s on a formula simplification. DAG size of input: 593 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:54,624 WARN L234 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 574 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:05,409 WARN L234 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 576 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:12,419 WARN L234 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 576 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:19,442 WARN L234 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 574 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:30,368 WARN L234 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 574 DAG size of output: 374 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:40,912 WARN L234 SmtUtils]: Spent 10.06s on a formula simplification. DAG size of input: 572 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:45,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2067290417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:45,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:13:45,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2022-11-03 04:13:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932431416] [2022-11-03 04:13:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:45,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 04:13:45,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 04:13:45,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2022-11-03 04:13:45,149 INFO L87 Difference]: Start difference. First operand 357 states and 531 transitions. Second operand has 26 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 04:14:06,735 WARN L234 SmtUtils]: Spent 19.78s on a formula simplification. DAG size of input: 570 DAG size of output: 452 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:27,820 WARN L234 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 414 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:33,547 WARN L234 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 412 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:47,576 INFO L93 Difference]: Finished difference Result 808 states and 1262 transitions. [2022-11-03 04:14:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 04:14:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-11-03 04:14:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:47,591 INFO L225 Difference]: With dead ends: 808 [2022-11-03 04:14:47,592 INFO L226 Difference]: Without dead ends: 514 [2022-11-03 04:14:47,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 194.7s TimeCoverageRelationStatistics Valid=207, Invalid=1275, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 04:14:47,599 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 351 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:47,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3410 Invalid, 2336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-11-03 04:14:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-03 04:14:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 419. [2022-11-03 04:14:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 305 states have (on average 1.5049180327868852) internal successors, (459), 310 states have internal predecessors, (459), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2022-11-03 04:14:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 636 transitions. [2022-11-03 04:14:47,920 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 636 transitions. Word has length 74 [2022-11-03 04:14:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:47,921 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 636 transitions. [2022-11-03 04:14:47,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-03 04:14:47,923 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 636 transitions. [2022-11-03 04:14:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 04:14:47,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:47,929 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:47,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:48,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:14:48,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1925302324, now seen corresponding path program 1 times [2022-11-03 04:14:48,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:48,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321391018] [2022-11-03 04:14:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:14:48,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:14:48,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321391018] [2022-11-03 04:14:48,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321391018] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:48,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564028015] [2022-11-03 04:14:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:48,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:48,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:48,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:48,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8a4f27-ad54-48af-b915-ce22617e1f80/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:14:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:48,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:14:48,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:14:48,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:14:48,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564028015] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:14:48,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524367867] [2022-11-03 04:14:48,750 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-03 04:14:48,750 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:14:48,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:14:48,751 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:14:48,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:16:45,333 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:16:45,640 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-11-03 04:16:45,987 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-11-03 04:16:46,314 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 236 for LOIs [2022-11-03 04:16:47,019 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-11-03 04:16:47,088 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-03 04:16:47,462 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 231 for LOIs [2022-11-03 04:17:06,099 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 202 for LOIs [2022-11-03 04:17:06,133 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 222 for LOIs [2022-11-03 04:17:06,200 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 227 for LOIs [2022-11-03 04:17:06,244 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-11-03 04:17:07,817 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:17:24,133 WARN L234 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:32,096 WARN L234 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:40,595 WARN L234 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:48,636 WARN L234 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:55,879 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 474 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:11,167 WARN L234 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 508 DAG size of output: 313 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:23,196 WARN L234 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 539 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:28,980 WARN L234 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 531 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:51,670 WARN L234 SmtUtils]: Spent 12.65s on a formula simplification. DAG size of input: 536 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:58,637 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 529 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:16,328 WARN L234 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 531 DAG size of output: 316 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:32,565 WARN L234 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 534 DAG size of output: 379 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:44,167 WARN L234 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 424 DAG size of output: 248 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)