./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:47:06,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:47:06,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:47:06,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:47:06,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:47:06,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:47:06,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:47:06,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:47:06,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:47:06,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:47:06,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:47:06,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:47:06,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:47:06,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:47:06,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:47:06,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:47:06,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:47:06,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:47:06,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:47:06,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:47:06,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:47:06,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:47:06,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:47:06,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:47:06,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:47:06,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:47:06,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:47:06,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:47:06,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:47:06,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:47:06,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:47:06,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:47:06,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:47:06,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:47:06,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:47:06,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:47:06,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:47:06,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:47:06,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:47:06,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:47:06,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:47:06,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:47:06,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:47:06,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:47:06,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:47:06,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:47:06,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:47:06,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:47:06,132 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:47:06,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:47:06,132 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:47:06,132 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:47:06,132 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:47:06,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:47:06,133 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:47:06,133 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:47:06,133 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:47:06,133 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:47:06,133 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:47:06,134 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:47:06,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:47:06,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:47:06,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:47:06,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:47:06,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:47:06,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:47:06,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:47:06,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:47:06,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:47:06,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:06,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:47:06,137 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:47:06,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:47:06,139 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_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2022-11-19 06:47:06,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:47:06,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:47:06,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:47:06,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:47:06,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:47:06,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2022-11-19 06:47:06,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/data/e6f4a9745/2269e871e8954398a2fb80989fc9adcd/FLAG36f0cf425 [2022-11-19 06:47:07,175 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:47:07,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2022-11-19 06:47:07,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/data/e6f4a9745/2269e871e8954398a2fb80989fc9adcd/FLAG36f0cf425 [2022-11-19 06:47:07,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/data/e6f4a9745/2269e871e8954398a2fb80989fc9adcd [2022-11-19 06:47:07,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:47:07,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:47:07,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:07,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:47:07,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:47:07,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:07" (1/1) ... [2022-11-19 06:47:07,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fece7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:07, skipping insertion in model container [2022-11-19 06:47:07,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:07" (1/1) ... [2022-11-19 06:47:07,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:47:07,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:47:08,141 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2022-11-19 06:47:08,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:08,156 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:47:08,291 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2022-11-19 06:47:08,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:08,324 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:47:08,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08 WrapperNode [2022-11-19 06:47:08,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:08,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:08,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:47:08,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:47:08,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,463 INFO L138 Inliner]: procedures = 131, calls = 218, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1018 [2022-11-19 06:47:08,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:08,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:47:08,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:47:08,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:47:08,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:47:08,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:47:08,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:47:08,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:47:08,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (1/1) ... [2022-11-19 06:47:08,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:08,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:47:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:47:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 06:47:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 06:47:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 06:47:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 06:47:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 06:47:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 06:47:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 06:47:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 06:47:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 06:47:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 06:47:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 06:47:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 06:47:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 06:47:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 06:47:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 06:47:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 06:47:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 06:47:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 06:47:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 06:47:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 06:47:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 06:47:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 06:47:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 06:47:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 06:47:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 06:47:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:47:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 06:47:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 06:47:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 06:47:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 06:47:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 06:47:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 06:47:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 06:47:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 06:47:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 06:47:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 06:47:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-19 06:47:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-19 06:47:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 06:47:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 06:47:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 06:47:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 06:47:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 06:47:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 06:47:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 06:47:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 06:47:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:47:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 06:47:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 06:47:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:47:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:47:09,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:47:09,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:47:10,077 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:47:10,586 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:47:10,586 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:47:10,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:47:10 BoogieIcfgContainer [2022-11-19 06:47:10,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:47:10,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:47:10,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:47:10,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:47:10,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:47:07" (1/3) ... [2022-11-19 06:47:10,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daefada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:47:10, skipping insertion in model container [2022-11-19 06:47:10,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:08" (2/3) ... [2022-11-19 06:47:10,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daefada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:47:10, skipping insertion in model container [2022-11-19 06:47:10,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:47:10" (3/3) ... [2022-11-19 06:47:10,602 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2022-11-19 06:47:10,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:47:10,621 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:47:10,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:47:10,696 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;@64c2e727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:47:10,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:47:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-11-19 06:47:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 06:47:10,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:10,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:10,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:47:10,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1783309674, now seen corresponding path program 1 times [2022-11-19 06:47:10,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:10,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483422782] [2022-11-19 06:47:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:10,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:11,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:11,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483422782] [2022-11-19 06:47:11,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483422782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:11,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:11,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:47:11,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506984738] [2022-11-19 06:47:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:11,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:47:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:47:11,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:47:11,193 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:11,402 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2022-11-19 06:47:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:47:11,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-11-19 06:47:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:11,418 INFO L225 Difference]: With dead ends: 319 [2022-11-19 06:47:11,418 INFO L226 Difference]: Without dead ends: 198 [2022-11-19 06:47:11,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:47:11,427 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:11,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:47:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-19 06:47:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-19 06:47:11,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-19 06:47:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-11-19 06:47:11,513 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2022-11-19 06:47:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:11,515 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-11-19 06:47:11,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-11-19 06:47:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 06:47:11,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:11,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:11,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:47:11,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:47:11,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:11,521 INFO L85 PathProgramCache]: Analyzing trace with hash 485538171, now seen corresponding path program 1 times [2022-11-19 06:47:11,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:11,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960206590] [2022-11-19 06:47:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:11,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:11,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960206590] [2022-11-19 06:47:11,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960206590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:11,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:11,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:47:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136374881] [2022-11-19 06:47:11,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:11,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:11,873 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:12,041 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2022-11-19 06:47:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:12,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-19 06:47:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:12,052 INFO L225 Difference]: With dead ends: 315 [2022-11-19 06:47:12,052 INFO L226 Difference]: Without dead ends: 200 [2022-11-19 06:47:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:12,061 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:12,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:47:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-19 06:47:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-19 06:47:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-19 06:47:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-11-19 06:47:12,082 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2022-11-19 06:47:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:12,083 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-11-19 06:47:12,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-11-19 06:47:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 06:47:12,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:12,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:12,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:47:12,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:47:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1704321633, now seen corresponding path program 1 times [2022-11-19 06:47:12,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:12,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915186040] [2022-11-19 06:47:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:12,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:12,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:12,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915186040] [2022-11-19 06:47:12,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915186040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:12,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:12,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:47:12,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945021226] [2022-11-19 06:47:12,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:12,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:12,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:12,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:12,275 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:12,414 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2022-11-19 06:47:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:12,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-19 06:47:12,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:12,416 INFO L225 Difference]: With dead ends: 430 [2022-11-19 06:47:12,417 INFO L226 Difference]: Without dead ends: 248 [2022-11-19 06:47:12,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:12,419 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 57 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:12,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 474 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:47:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-19 06:47:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2022-11-19 06:47:12,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 06:47:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2022-11-19 06:47:12,446 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2022-11-19 06:47:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:12,446 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2022-11-19 06:47:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:47:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2022-11-19 06:47:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 06:47:12,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:12,450 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] [2022-11-19 06:47:12,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:47:12,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:47:12,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1873049773, now seen corresponding path program 1 times [2022-11-19 06:47:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:12,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251965848] [2022-11-19 06:47:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:12,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:12,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251965848] [2022-11-19 06:47:12,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251965848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:47:12,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81611003] [2022-11-19 06:47:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:12,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:12,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:12,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:12,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:47:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:12,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:47:12,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:13,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:47:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:47:13,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81611003] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:47:13,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [476471602] [2022-11-19 06:47:13,219 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-19 06:47:13,219 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:47:13,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:47:13,229 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:47:13,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:47:46,346 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 06:47:46,689 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:47:47,098 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:48:17,204 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 468 DAG size of output: 286 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:30,427 WARN L233 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 490 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:41,304 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 512 DAG size of output: 301 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:48,164 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 568 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:57,045 WARN L233 SmtUtils]: Spent 8.57s on a formula simplification. DAG size of input: 570 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:04,124 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 572 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:11,073 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 568 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:12,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [476471602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:12,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:49:12,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-19 06:49:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688809847] [2022-11-19 06:49:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 06:49:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:12,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 06:49:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-19 06:49:12,413 INFO L87 Difference]: Start difference. First operand 243 states and 342 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-19 06:49:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:22,282 INFO L93 Difference]: Finished difference Result 565 states and 845 transitions. [2022-11-19 06:49:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 06:49:22,283 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2022-11-19 06:49:22,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:22,286 INFO L225 Difference]: With dead ends: 565 [2022-11-19 06:49:22,286 INFO L226 Difference]: Without dead ends: 340 [2022-11-19 06:49:22,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 85.3s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-19 06:49:22,288 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 113 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 2192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:22,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 3625 Invalid, 2202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2192 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-19 06:49:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-19 06:49:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 266. [2022-11-19 06:49:22,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 174 states have internal predecessors, (236), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 06:49:22,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2022-11-19 06:49:22,430 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 71 [2022-11-19 06:49:22,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:22,431 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2022-11-19 06:49:22,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-19 06:49:22,431 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2022-11-19 06:49:22,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 06:49:22,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:22,434 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:49:22,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:49:22,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:49:22,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:49:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:22,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1817652384, now seen corresponding path program 1 times [2022-11-19 06:49:22,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:22,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594410583] [2022-11-19 06:49:22,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:22,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:49:22,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:22,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594410583] [2022-11-19 06:49:22,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594410583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:22,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:49:22,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:49:22,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463294943] [2022-11-19 06:49:22,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:22,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:49:22,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:22,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:49:22,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:22,777 INFO L87 Difference]: Start difference. First operand 266 states and 375 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:49:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:23,115 INFO L93 Difference]: Finished difference Result 625 states and 914 transitions. [2022-11-19 06:49:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:49:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-11-19 06:49:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:23,119 INFO L225 Difference]: With dead ends: 625 [2022-11-19 06:49:23,120 INFO L226 Difference]: Without dead ends: 383 [2022-11-19 06:49:23,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:23,128 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 55 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:23,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 476 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:49:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-19 06:49:23,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 378. [2022-11-19 06:49:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 258 states have (on average 1.441860465116279) internal successors, (372), 261 states have internal predecessors, (372), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-19 06:49:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2022-11-19 06:49:23,312 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 76 [2022-11-19 06:49:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:23,312 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2022-11-19 06:49:23,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:49:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2022-11-19 06:49:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 06:49:23,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:23,315 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:49:23,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:49:23,316 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:49:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash -75576913, now seen corresponding path program 1 times [2022-11-19 06:49:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277945373] [2022-11-19 06:49:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:49:23,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:23,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277945373] [2022-11-19 06:49:23,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277945373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:49:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909988747] [2022-11-19 06:49:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:23,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:49:23,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:49:23,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:49:23,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:49:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:23,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:49:23,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:49:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:49:23,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:49:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:49:23,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909988747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:49:23,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1105930697] [2022-11-19 06:49:23,880 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-19 06:49:23,880 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:49:23,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:49:23,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:49:23,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:50:19,030 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 06:50:19,495 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-19 06:50:19,931 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-11-19 06:50:22,240 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-19 06:50:22,283 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 270 for LOIs [2022-11-19 06:50:47,607 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-11-19 06:50:47,648 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 248 for LOIs [2022-11-19 06:50:47,725 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 253 for LOIs [2022-11-19 06:50:47,773 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 06:50:54,010 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:51:24,074 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 468 DAG size of output: 286 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:51:36,942 WARN L233 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 490 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:51:47,422 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 512 DAG size of output: 301 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:52:01,381 WARN L233 SmtUtils]: Spent 13.63s on a formula simplification. DAG size of input: 591 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:52:15,773 WARN L233 SmtUtils]: Spent 13.99s on a formula simplification. DAG size of input: 593 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:52:44,474 WARN L233 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 480 DAG size of output: 278 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:52:52,210 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 502 DAG size of output: 284 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:53:34,426 WARN L233 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 543 DAG size of output: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:53:44,455 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 545 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:53:56,180 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 587 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:00,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1105930697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:00,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:00,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-11-19 06:54:00,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214662599] [2022-11-19 06:54:00,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:00,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-19 06:54:00,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:00,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-19 06:54:00,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=3045, Unknown=0, NotChecked=0, Total=3192 [2022-11-19 06:54:00,993 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 06:54:10,090 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 369 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:16,505 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 371 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:23,822 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 369 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:31,227 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 367 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:38,498 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 369 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:46,640 WARN L233 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 375 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:52,575 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 374 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:58,448 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 376 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:17,380 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 340 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:38,322 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 554 DAG size of output: 378 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:45,570 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 556 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:53,384 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 578 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:56:07,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:07,465 INFO L93 Difference]: Finished difference Result 873 states and 1345 transitions. [2022-11-19 06:56:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-19 06:56:07,466 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 77 [2022-11-19 06:56:07,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:07,470 INFO L225 Difference]: With dead ends: 873 [2022-11-19 06:56:07,470 INFO L226 Difference]: Without dead ends: 558 [2022-11-19 06:56:07,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 281.7s TimeCoverageRelationStatistics Valid=273, Invalid=4983, Unknown=0, NotChecked=0, Total=5256 [2022-11-19 06:56:07,474 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 404 mSDsluCounter, 7085 mSDsCounter, 0 mSdLazyCounter, 7244 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 7348 SdHoareTripleChecker+Invalid, 7301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 7244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:07,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 7348 Invalid, 7301 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [57 Valid, 7244 Invalid, 0 Unknown, 0 Unchecked, 30.8s Time] [2022-11-19 06:56:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-19 06:56:07,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 474. [2022-11-19 06:56:07,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 337 states have (on average 1.4688427299703264) internal successors, (495), 342 states have internal predecessors, (495), 106 states have call successors, (106), 32 states have call predecessors, (106), 30 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-19 06:56:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 706 transitions. [2022-11-19 06:56:07,743 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 706 transitions. Word has length 77 [2022-11-19 06:56:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:07,744 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 706 transitions. [2022-11-19 06:56:07,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 06:56:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 706 transitions. [2022-11-19 06:56:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 06:56:07,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:07,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:07,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 06:56:07,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 06:56:07,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:07,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:07,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1103746270, now seen corresponding path program 1 times [2022-11-19 06:56:07,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:07,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279501527] [2022-11-19 06:56:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:07,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:08,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:08,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279501527] [2022-11-19 06:56:08,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279501527] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:08,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183621108] [2022-11-19 06:56:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:08,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:08,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5613bf56-fdfd-4900-a519-8c699143fa4e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:56:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:08,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:56:08,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:08,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:08,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183621108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:08,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [795014405] [2022-11-19 06:56:08,565 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-19 06:56:08,565 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:08,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:08,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:08,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:50,799 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 06:56:51,145 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 233 for LOIs [2022-11-19 06:56:51,211 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 232 for LOIs [2022-11-19 06:56:51,280 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 244 for LOIs [2022-11-19 06:56:53,003 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-11-19 06:56:53,069 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-11-19 06:56:53,105 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:56:53,440 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 244 for LOIs [2022-11-19 06:57:11,852 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 202 for LOIs [2022-11-19 06:57:11,886 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 224 for LOIs [2022-11-19 06:57:11,956 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 229 for LOIs [2022-11-19 06:57:12,000 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-11-19 06:57:16,655 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:57:46,506 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 468 DAG size of output: 286 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:59,334 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 490 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:09,850 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 512 DAG size of output: 301 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:47,034 WARN L233 SmtUtils]: Spent 10.41s on a formula simplification. DAG size of input: 424 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:52,567 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 446 DAG size of output: 258 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:38,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [795014405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:38,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:59:38,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-11-19 06:59:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617907886] [2022-11-19 06:59:38,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:38,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-11-19 06:59:38,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:38,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-11-19 06:59:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3618, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 06:59:38,610 INFO L87 Difference]: Start difference. First operand 474 states and 706 transitions. Second operand has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:00:54,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:54,271 INFO L93 Difference]: Finished difference Result 1009 states and 1558 transitions. [2022-11-19 07:00:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-19 07:00:54,276 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 80 [2022-11-19 07:00:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:54,280 INFO L225 Difference]: With dead ends: 1009 [2022-11-19 07:00:54,280 INFO L226 Difference]: Without dead ends: 694 [2022-11-19 07:00:54,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 180.4s TimeCoverageRelationStatistics Valid=269, Invalid=5431, Unknown=0, NotChecked=0, Total=5700 [2022-11-19 07:00:54,284 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 269 mSDsluCounter, 7254 mSDsCounter, 0 mSdLazyCounter, 8932 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 7531 SdHoareTripleChecker+Invalid, 8972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 8932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:54,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 7531 Invalid, 8972 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [40 Valid, 8932 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2022-11-19 07:00:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states.