./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/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_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/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_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/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 77340ea3311b00efe6580b7964ad9e7e4d288fea0ba2d6706c8abdac4c4c4bb5 --- 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 02:39:57,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:39:57,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:39:57,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:39:57,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:39:57,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:39:57,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:39:57,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:39:57,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:39:57,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:39:57,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:39:57,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:39:57,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:39:57,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:39:57,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:39:57,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:39:57,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:39:57,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:39:57,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:39:57,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:39:57,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:39:57,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:39:57,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:39:57,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:39:57,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:39:57,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:39:57,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:39:57,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:39:57,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:39:57,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:39:57,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:39:57,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:39:57,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:39:57,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:39:57,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:39:57,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:39:57,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:39:57,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:39:57,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:39:57,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:39:57,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:39:57,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:39:57,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:39:57,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:39:57,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:39:57,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:39:57,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:39:57,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:39:57,340 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:39:57,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:39:57,341 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:39:57,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:39:57,343 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:39:57,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:39:57,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:39:57,344 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:39:57,344 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:39:57,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:39:57,345 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:39:57,345 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:39:57,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:39:57,346 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:39:57,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:39:57,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:39:57,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:39:57,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:39:57,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:39:57,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:39:57,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:39:57,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:39:57,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:39:57,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:39:57,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:39:57,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:39:57,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:57,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:39:57,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:39:57,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:39:57,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:39:57,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:39:57,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:39:57,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:39:57,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:39:57,355 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_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77340ea3311b00efe6580b7964ad9e7e4d288fea0ba2d6706c8abdac4c4c4bb5 [2022-11-03 02:39:57,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:39:57,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:39:57,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:39:57,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:39:57,779 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:39:57,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec27_product30.cil.c [2022-11-03 02:39:57,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/data/332f28226/29f0592da8ff4443a381eba59512d095/FLAG5eead6fc1 [2022-11-03 02:39:58,564 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:39:58,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c [2022-11-03 02:39:58,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/data/332f28226/29f0592da8ff4443a381eba59512d095/FLAG5eead6fc1 [2022-11-03 02:39:58,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/data/332f28226/29f0592da8ff4443a381eba59512d095 [2022-11-03 02:39:58,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:39:58,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:39:58,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:58,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:39:58,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:39:58,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:58" (1/1) ... [2022-11-03 02:39:58,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e50c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:58, skipping insertion in model container [2022-11-03 02:39:58,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:58" (1/1) ... [2022-11-03 02:39:58,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:39:58,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:39:59,443 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_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c[47628,47641] [2022-11-03 02:39:59,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:59,541 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:39:59,677 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_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c[47628,47641] [2022-11-03 02:39:59,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:59,737 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:39:59,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59 WrapperNode [2022-11-03 02:39:59,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:59,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:59,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:39:59,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:39:59,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,829 INFO L138 Inliner]: procedures = 131, calls = 219, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 916 [2022-11-03 02:39:59,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:59,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:39:59,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:39:59,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:39:59,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:39:59,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:39:59,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:39:59,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:39:59,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (1/1) ... [2022-11-03 02:39:59,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:59,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:59,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:39:59,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:39:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 02:39:59,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 02:39:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:40:00,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:40:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:40:00,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:40:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:40:00,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:40:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:40:00,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:40:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 02:40:00,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 02:40:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:40:00,001 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:40:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:40:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:40:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 02:40:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 02:40:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:40:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:40:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:40:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 02:40:00,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 02:40:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:40:00,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:40:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:40:00,004 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 02:40:00,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 02:40:00,004 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 02:40:00,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 02:40:00,004 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:40:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:40:00,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:40:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:40:00,005 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:40:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:40:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-03 02:40:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-03 02:40:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 02:40:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 02:40:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:40:00,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:40:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:40:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:40:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:40:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:40:00,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 02:40:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 02:40:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:40:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:40:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:40:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:40:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:40:00,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:00,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:01,334 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:40:01,868 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:40:01,869 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:40:01,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:01 BoogieIcfgContainer [2022-11-03 02:40:01,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:40:01,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:40:01,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:40:01,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:40:01,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:39:58" (1/3) ... [2022-11-03 02:40:01,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103e50eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:01, skipping insertion in model container [2022-11-03 02:40:01,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:59" (2/3) ... [2022-11-03 02:40:01,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103e50eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:01, skipping insertion in model container [2022-11-03 02:40:01,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:01" (3/3) ... [2022-11-03 02:40:01,883 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product30.cil.c [2022-11-03 02:40:01,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:40:01,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:40:01,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:40:01,995 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;@f2ac8b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:40:01,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:40:02,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-11-03 02:40:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 02:40:02,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:02,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:02,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:02,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:02,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1897085193, now seen corresponding path program 1 times [2022-11-03 02:40:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916754880] [2022-11-03 02:40:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:40:02,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:02,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916754880] [2022-11-03 02:40:02,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916754880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:02,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:02,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:40:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019114366] [2022-11-03 02:40:02,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:02,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:40:02,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:02,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:40:02,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:40:02,524 INFO L87 Difference]: Start difference. First operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:02,663 INFO L93 Difference]: Finished difference Result 303 states and 394 transitions. [2022-11-03 02:40:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:40:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92 [2022-11-03 02:40:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:02,718 INFO L225 Difference]: With dead ends: 303 [2022-11-03 02:40:02,718 INFO L226 Difference]: Without dead ends: 190 [2022-11-03 02:40:02,722 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 02:40:02,725 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:02,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:40:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-03 02:40:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-03 02:40:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-03 02:40:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 251 transitions. [2022-11-03 02:40:02,816 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 251 transitions. Word has length 92 [2022-11-03 02:40:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:02,817 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 251 transitions. [2022-11-03 02:40:02,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 251 transitions. [2022-11-03 02:40:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:40:02,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:02,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:02,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:40:02,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:02,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1185755477, now seen corresponding path program 1 times [2022-11-03 02:40:02,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:02,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540954103] [2022-11-03 02:40:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:02,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:40:03,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:03,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540954103] [2022-11-03 02:40:03,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540954103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:03,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:03,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:40:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621710257] [2022-11-03 02:40:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:03,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:40:03,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:03,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:40:03,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:40:03,082 INFO L87 Difference]: Start difference. First operand 190 states and 251 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:03,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:03,207 INFO L93 Difference]: Finished difference Result 299 states and 382 transitions. [2022-11-03 02:40:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:40:03,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93 [2022-11-03 02:40:03,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:03,214 INFO L225 Difference]: With dead ends: 299 [2022-11-03 02:40:03,214 INFO L226 Difference]: Without dead ends: 192 [2022-11-03 02:40:03,222 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 02:40:03,224 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:03,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:40:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-03 02:40:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-03 02:40:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 116 states have internal predecessors, (146), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-03 02:40:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2022-11-03 02:40:03,253 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 93 [2022-11-03 02:40:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:03,255 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2022-11-03 02:40:03,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2022-11-03 02:40:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 02:40:03,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:03,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:03,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:40:03,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash -452752946, now seen corresponding path program 1 times [2022-11-03 02:40:03,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:03,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547655048] [2022-11-03 02:40:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:03,522 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 02:40:03,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:03,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547655048] [2022-11-03 02:40:03,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547655048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:03,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:03,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:40:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261181505] [2022-11-03 02:40:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:03,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:40:03,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:03,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:40:03,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:40:03,526 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:03,691 INFO L93 Difference]: Finished difference Result 414 states and 565 transitions. [2022-11-03 02:40:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:40:03,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-11-03 02:40:03,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:03,693 INFO L225 Difference]: With dead ends: 414 [2022-11-03 02:40:03,694 INFO L226 Difference]: Without dead ends: 240 [2022-11-03 02:40:03,695 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 02:40:03,696 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 57 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:03,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 446 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:40:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-03 02:40:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 235. [2022-11-03 02:40:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 148 states have internal predecessors, (199), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-03 02:40:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 328 transitions. [2022-11-03 02:40:03,720 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 328 transitions. Word has length 98 [2022-11-03 02:40:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:03,720 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 328 transitions. [2022-11-03 02:40:03,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:40:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 328 transitions. [2022-11-03 02:40:03,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 02:40:03,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:03,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:03,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:40:03,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:03,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:03,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2019043731, now seen corresponding path program 1 times [2022-11-03 02:40:03,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:03,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943184111] [2022-11-03 02:40:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:03,948 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 02:40:03,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:03,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943184111] [2022-11-03 02:40:03,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943184111] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:40:03,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297185561] [2022-11-03 02:40:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:03,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:40:03,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:03,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:40:03,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:40:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:04,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:40:04,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:04,442 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 02:40:04,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:40:04,566 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 02:40:04,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297185561] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:40:04,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2118346839] [2022-11-03 02:40:04,597 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-03 02:40:04,598 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:40:04,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:40:04,607 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:40:04,608 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:40:52,404 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:40:52,706 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 02:40:54,701 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 02:40:54,751 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:40:55,050 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-03 02:41:22,288 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-11-03 02:41:22,948 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-11-03 02:41:22,991 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-03 02:41:23,602 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-03 02:41:23,676 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-11-03 02:41:23,716 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-03 02:41:25,566 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-11-03 02:41:25,607 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:41:54,119 WARN L234 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 464 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:00,301 WARN L234 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 476 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:06,925 WARN L234 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 486 DAG size of output: 306 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:25,584 WARN L234 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 561 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:33,977 WARN L234 SmtUtils]: Spent 7.90s on a formula simplification. DAG size of input: 563 DAG size of output: 399 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:42,411 WARN L234 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 562 DAG size of output: 401 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:50,753 WARN L234 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 558 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:42:59,232 WARN L234 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 564 DAG size of output: 403 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:43:07,600 WARN L234 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 562 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:43:18,660 WARN L234 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:43:45,969 WARN L234 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:43:55,701 WARN L234 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:44:36,919 WARN L234 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 586 DAG size of output: 399 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:45:28,469 WARN L234 SmtUtils]: Spent 22.53s on a formula simplification. DAG size of input: 645 DAG size of output: 439 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:45:42,361 WARN L234 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 642 DAG size of output: 424 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:45:48,301 WARN L234 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 430 DAG size of output: 414 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:45:55,120 WARN L234 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 466 DAG size of output: 450 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:46:11,587 WARN L234 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 690 DAG size of output: 508 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:46:15,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2118346839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:15,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:46:15,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [4, 4, 4] total 72 [2022-11-03 02:46:15,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610317581] [2022-11-03 02:46:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:15,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-03 02:46:15,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:15,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-03 02:46:15,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=4872, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 02:46:15,955 INFO L87 Difference]: Start difference. First operand 235 states and 328 transitions. Second operand has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-03 02:46:25,849 WARN L234 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 475 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:46:32,086 WARN L234 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 477 DAG size of output: 350 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:46:38,054 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 483 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:46:49,478 WARN L234 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 486 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:47:10,669 WARN L234 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 407 DAG size of output: 405 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:48:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:13,604 INFO L93 Difference]: Finished difference Result 737 states and 1116 transitions. [2022-11-03 02:48:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-03 02:48:13,611 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 99 [2022-11-03 02:48:13,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:13,617 INFO L225 Difference]: With dead ends: 737 [2022-11-03 02:48:13,617 INFO L226 Difference]: Without dead ends: 520 [2022-11-03 02:48:13,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 353.0s TimeCoverageRelationStatistics Valid=345, Invalid=6965, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 02:48:13,623 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 443 mSDsluCounter, 8268 mSDsCounter, 0 mSdLazyCounter, 11351 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 11423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 11351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:13,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 8407 Invalid, 11423 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [72 Valid, 11351 Invalid, 0 Unknown, 0 Unchecked, 53.6s Time] [2022-11-03 02:48:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-11-03 02:48:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 382. [2022-11-03 02:48:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 263 states have internal predecessors, (366), 88 states have call successors, (88), 35 states have call predecessors, (88), 34 states have return successors, (88), 85 states have call predecessors, (88), 87 states have call successors, (88) [2022-11-03 02:48:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 542 transitions. [2022-11-03 02:48:13,963 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 542 transitions. Word has length 99 [2022-11-03 02:48:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:13,964 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 542 transitions. [2022-11-03 02:48:13,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-03 02:48:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 542 transitions. [2022-11-03 02:48:13,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 02:48:13,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:13,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:14,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:48:14,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:14,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1041057883, now seen corresponding path program 1 times [2022-11-03 02:48:14,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:14,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483573953] [2022-11-03 02:48:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:14,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:48:14,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:14,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483573953] [2022-11-03 02:48:14,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483573953] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:48:14,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515681332] [2022-11-03 02:48:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:14,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:14,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:14,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:14,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860fd09-9b8c-4ec5-a941-c421dc1cf3be/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:48:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:14,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:48:14,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:48:14,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:48:14,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515681332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:14,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1575875359] [2022-11-03 02:48:14,832 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-03 02:48:14,832 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:14,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:14,833 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:14,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:52,368 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:48:52,670 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 02:48:54,533 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 02:48:54,572 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:48:54,864 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-11-03 02:49:40,023 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 429 for LOIs [2022-11-03 02:49:42,238 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-03 02:49:42,940 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-03 02:49:43,010 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-11-03 02:49:43,051 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 478 for LOIs [2022-11-03 02:49:48,124 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-11-03 02:49:48,167 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-11-03 02:49:48,207 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:50:16,486 WARN L234 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 464 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:50:22,784 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 476 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:50:29,414 WARN L234 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 486 DAG size of output: 306 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:50:59,121 WARN L234 SmtUtils]: Spent 19.13s on a formula simplification. DAG size of input: 583 DAG size of output: 460 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:24,563 WARN L234 SmtUtils]: Spent 23.57s on a formula simplification. DAG size of input: 591 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:31,084 WARN L234 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 561 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:37,640 WARN L234 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 557 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:44,377 WARN L234 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 563 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:52:05,283 WARN L234 SmtUtils]: Spent 14.95s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:52:12,842 WARN L234 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 495 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:52:45,134 WARN L234 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 452 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)