./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:56:08,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:56:08,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:56:09,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:56:09,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:56:09,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:56:09,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:56:09,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:56:09,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:56:09,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:56:09,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:56:09,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:56:09,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:56:09,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:56:09,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:56:09,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:56:09,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:56:09,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:56:09,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:56:09,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:56:09,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:56:09,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:56:09,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:56:09,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:56:09,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:56:09,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:56:09,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:56:09,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:56:09,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:56:09,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:56:09,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:56:09,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:56:09,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:56:09,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:56:09,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:56:09,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:56:09,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:56:09,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:56:09,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:56:09,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:56:09,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:56:09,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:56:09,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:56:09,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:56:09,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:56:09,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:56:09,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:56:09,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:56:09,148 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:56:09,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:56:09,148 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:56:09,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:56:09,150 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:56:09,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:56:09,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:56:09,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:56:09,151 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:56:09,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:56:09,151 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:56:09,151 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:56:09,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:56:09,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:56:09,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:56:09,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:56:09,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:56:09,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:56:09,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:56:09,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:56:09,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:56:09,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:56:09,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:56:09,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:56:09,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:56:09,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:56:09,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:56:09,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:56:09,156 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:56:09,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:56:09,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:56:09,156 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:56:09,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:56:09,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:56:09,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:56:09,157 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_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 [2022-11-03 01:56:09,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:56:09,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:56:09,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:56:09,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:56:09,584 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:56:09,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2022-11-03 01:56:09,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/data/c1b25e422/9d540330266947fdbda819bbdd0b2de5/FLAG06f32e03a [2022-11-03 01:56:10,444 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:56:10,445 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2022-11-03 01:56:10,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/data/c1b25e422/9d540330266947fdbda819bbdd0b2de5/FLAG06f32e03a [2022-11-03 01:56:10,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/data/c1b25e422/9d540330266947fdbda819bbdd0b2de5 [2022-11-03 01:56:10,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:56:10,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:56:10,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:56:10,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:56:10,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:56:10,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:56:10" (1/1) ... [2022-11-03 01:56:10,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff0fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:10, skipping insertion in model container [2022-11-03 01:56:10,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:56:10" (1/1) ... [2022-11-03 01:56:10,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:56:10,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:56:11,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2022-11-03 01:56:11,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:56:11,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:56:11,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2022-11-03 01:56:11,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:56:11,713 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:56:11,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11 WrapperNode [2022-11-03 01:56:11,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:56:11,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:56:11,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:56:11,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:56:11,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,814 INFO L138 Inliner]: procedures = 131, calls = 217, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1009 [2022-11-03 01:56:11,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:56:11,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:56:11,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:56:11,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:56:11,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:56:11,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:56:11,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:56:11,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:56:11,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (1/1) ... [2022-11-03 01:56:11,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:56:11,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:12,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:56:12,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:56:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 01:56:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 01:56:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 01:56:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 01:56:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 01:56:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 01:56:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 01:56:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 01:56:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 01:56:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 01:56:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 01:56:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 01:56:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 01:56:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 01:56:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 01:56:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 01:56:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 01:56:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 01:56:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 01:56:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 01:56:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 01:56:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 01:56:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 01:56:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 01:56:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 01:56:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:56:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 01:56:12,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 01:56:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 01:56:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 01:56:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 01:56:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 01:56:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 01:56:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 01:56:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 01:56:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 01:56:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 01:56:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 01:56:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 01:56:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 01:56:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 01:56:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 01:56:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 01:56:12,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 01:56:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 01:56:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 01:56:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:56:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 01:56:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 01:56:12,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:56:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:56:12,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:56:12,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:56:13,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:56:13,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:56:13,991 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:56:13,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:56:13 BoogieIcfgContainer [2022-11-03 01:56:13,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:56:13,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:56:13,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:56:14,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:56:14,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:56:10" (1/3) ... [2022-11-03 01:56:14,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf08c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:56:14, skipping insertion in model container [2022-11-03 01:56:14,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:56:11" (2/3) ... [2022-11-03 01:56:14,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf08c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:56:14, skipping insertion in model container [2022-11-03 01:56:14,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:56:13" (3/3) ... [2022-11-03 01:56:14,006 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2022-11-03 01:56:14,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:56:14,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:56:14,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:56:14,130 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;@476e927e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:56:14,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:56:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-03 01:56:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 01:56:14,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:14,173 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:14,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:14,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1236814322, now seen corresponding path program 1 times [2022-11-03 01:56:14,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:14,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982686232] [2022-11-03 01:56:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:14,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:14,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:14,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982686232] [2022-11-03 01:56:14,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982686232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:14,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:14,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:56:14,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921788586] [2022-11-03 01:56:14,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:14,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:56:14,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:14,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:56:14,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:56:14,831 INFO L87 Difference]: Start difference. First operand has 198 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 119 states have internal predecessors, (151), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:15,061 INFO L93 Difference]: Finished difference Result 313 states and 412 transitions. [2022-11-03 01:56:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:56:15,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2022-11-03 01:56:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:15,090 INFO L225 Difference]: With dead ends: 313 [2022-11-03 01:56:15,090 INFO L226 Difference]: Without dead ends: 195 [2022-11-03 01:56:15,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:56:15,101 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:15,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:56:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-03 01:56:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-03 01:56:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 116 states have internal predecessors, (145), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-03 01:56:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 260 transitions. [2022-11-03 01:56:15,183 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 260 transitions. Word has length 92 [2022-11-03 01:56:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:15,186 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 260 transitions. [2022-11-03 01:56:15,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 260 transitions. [2022-11-03 01:56:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 01:56:15,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:15,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:15,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:56:15,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1804335174, now seen corresponding path program 1 times [2022-11-03 01:56:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:15,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457507546] [2022-11-03 01:56:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:15,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:15,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:15,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457507546] [2022-11-03 01:56:15,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457507546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:15,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:15,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:56:15,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915255939] [2022-11-03 01:56:15,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:15,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:56:15,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:56:15,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:15,604 INFO L87 Difference]: Start difference. First operand 195 states and 260 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:15,789 INFO L93 Difference]: Finished difference Result 309 states and 400 transitions. [2022-11-03 01:56:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:56:15,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-03 01:56:15,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:15,792 INFO L225 Difference]: With dead ends: 309 [2022-11-03 01:56:15,793 INFO L226 Difference]: Without dead ends: 197 [2022-11-03 01:56:15,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:15,795 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:15,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:56:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-03 01:56:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-11-03 01:56:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 118 states have internal predecessors, (147), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-03 01:56:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2022-11-03 01:56:15,818 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 93 [2022-11-03 01:56:15,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:15,819 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2022-11-03 01:56:15,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2022-11-03 01:56:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 01:56:15,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:15,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:15,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:56:15,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:15,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1396224630, now seen corresponding path program 1 times [2022-11-03 01:56:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:15,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289362703] [2022-11-03 01:56:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:15,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:15,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:15,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289362703] [2022-11-03 01:56:15,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289362703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:15,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:15,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:56:15,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269915851] [2022-11-03 01:56:15,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:15,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:56:15,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:15,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:56:15,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:15,969 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:16,100 INFO L93 Difference]: Finished difference Result 424 states and 583 transitions. [2022-11-03 01:56:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:56:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2022-11-03 01:56:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:16,103 INFO L225 Difference]: With dead ends: 424 [2022-11-03 01:56:16,103 INFO L226 Difference]: Without dead ends: 245 [2022-11-03 01:56:16,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:16,106 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 57 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:16,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 460 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:56:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-03 01:56:16,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2022-11-03 01:56:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 150 states have internal predecessors, (200), 69 states have call successors, (69), 23 states have call predecessors, (69), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-03 01:56:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 337 transitions. [2022-11-03 01:56:16,131 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 337 transitions. Word has length 98 [2022-11-03 01:56:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:16,131 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 337 transitions. [2022-11-03 01:56:16,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 337 transitions. [2022-11-03 01:56:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 01:56:16,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:16,135 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:16,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:56:16,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:16,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:16,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2074483755, now seen corresponding path program 1 times [2022-11-03 01:56:16,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:16,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702187971] [2022-11-03 01:56:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:16,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:16,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:16,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702187971] [2022-11-03 01:56:16,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702187971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:56:16,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503243344] [2022-11-03 01:56:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:16,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:16,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:16,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:56:16,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:56:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:16,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:56:16,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:16,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:56:16,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503243344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:16,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168252061] [2022-11-03 01:56:17,025 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-03 01:56:17,025 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:56:17,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:56:17,036 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:56:17,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:56:49,398 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 01:56:49,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 01:56:50,186 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:57:25,043 WARN L234 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:45,049 WARN L234 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:10,303 WARN L234 SmtUtils]: Spent 23.92s on a formula simplification. DAG size of input: 577 DAG size of output: 449 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:23,528 WARN L234 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 579 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:47,596 WARN L234 SmtUtils]: Spent 22.41s on a formula simplification. DAG size of input: 578 DAG size of output: 450 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:11,460 WARN L234 SmtUtils]: Spent 22.16s on a formula simplification. DAG size of input: 576 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:19,464 WARN L234 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 545 DAG size of output: 392 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:19,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [168252061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:19,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:59:19,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 01:59:19,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420128147] [2022-11-03 01:59:19,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:19,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 01:59:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:19,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 01:59:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:59:19,481 INFO L87 Difference]: Start difference. First operand 240 states and 337 transitions. Second operand has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:59:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:32,205 INFO L93 Difference]: Finished difference Result 559 states and 835 transitions. [2022-11-03 01:59:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 01:59:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2022-11-03 01:59:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:32,209 INFO L225 Difference]: With dead ends: 559 [2022-11-03 01:59:32,209 INFO L226 Difference]: Without dead ends: 337 [2022-11-03 01:59:32,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 149.3s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:59:32,212 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 164 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:32,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3133 Invalid, 1734 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-11-03 01:59:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-03 01:59:32,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 263. [2022-11-03 01:59:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 169 states have (on average 1.378698224852071) internal successors, (233), 172 states have internal predecessors, (233), 69 states have call successors, (69), 24 states have call predecessors, (69), 24 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-03 01:59:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 370 transitions. [2022-11-03 01:59:32,403 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 370 transitions. Word has length 99 [2022-11-03 01:59:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:32,404 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 370 transitions. [2022-11-03 01:59:32,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:59:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 370 transitions. [2022-11-03 01:59:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 01:59:32,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:32,408 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:32,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:59:32,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:32,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:32,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1051136335, now seen corresponding path program 1 times [2022-11-03 01:59:32,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:32,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812072340] [2022-11-03 01:59:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:32,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:59:32,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:32,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812072340] [2022-11-03 01:59:32,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812072340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:32,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:32,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:59:32,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273558701] [2022-11-03 01:59:32,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:32,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:59:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:59:32,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:59:32,799 INFO L87 Difference]: Start difference. First operand 263 states and 370 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:59:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:33,262 INFO L93 Difference]: Finished difference Result 619 states and 904 transitions. [2022-11-03 01:59:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:59:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-11-03 01:59:33,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:33,269 INFO L225 Difference]: With dead ends: 619 [2022-11-03 01:59:33,270 INFO L226 Difference]: Without dead ends: 380 [2022-11-03 01:59:33,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:59:33,275 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 55 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:33,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 467 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:59:33,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-03 01:59:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2022-11-03 01:59:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 256 states have (on average 1.44140625) internal successors, (369), 259 states have internal predecessors, (369), 94 states have call successors, (94), 24 states have call predecessors, (94), 24 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-03 01:59:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 556 transitions. [2022-11-03 01:59:33,646 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 556 transitions. Word has length 104 [2022-11-03 01:59:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:33,646 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 556 transitions. [2022-11-03 01:59:33,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:59:33,647 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 556 transitions. [2022-11-03 01:59:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 01:59:33,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:33,652 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:59:33,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:59:33,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:33,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash -941297127, now seen corresponding path program 1 times [2022-11-03 01:59:33,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:33,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384672651] [2022-11-03 01:59:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:59:33,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384672651] [2022-11-03 01:59:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384672651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5933949] [2022-11-03 01:59:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:59:33,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:59:33,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:59:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:34,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:59:34,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:59:34,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:59:34,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5933949] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:59:34,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1139904459] [2022-11-03 01:59:34,395 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-11-03 01:59:34,395 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:59:34,396 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:59:34,396 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:59:34,396 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:00:13,868 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:00:14,173 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 02:00:14,488 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:01:06,998 WARN L234 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:20,175 WARN L234 SmtUtils]: Spent 12.87s on a formula simplification. DAG size of input: 579 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:40,268 WARN L234 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 580 DAG size of output: 323 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:40,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1139904459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:40,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:01:40,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 02:01:40,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888297972] [2022-11-03 02:01:40,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:40,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:01:40,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:40,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:01:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-11-03 02:01:40,279 INFO L87 Difference]: Start difference. First operand 375 states and 556 transitions. Second operand has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-03 02:01:48,442 WARN L234 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 536 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:54,567 WARN L234 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 545 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:01,554 WARN L234 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 546 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:08,527 WARN L234 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 544 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:14,758 WARN L234 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 531 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:21,047 WARN L234 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 527 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:27,360 WARN L234 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 532 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:33,708 WARN L234 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 534 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:47,022 INFO L93 Difference]: Finished difference Result 846 states and 1314 transitions. [2022-11-03 02:02:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 02:02:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 105 [2022-11-03 02:02:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:47,031 INFO L225 Difference]: With dead ends: 846 [2022-11-03 02:02:47,031 INFO L226 Difference]: Without dead ends: 534 [2022-11-03 02:02:47,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 142.4s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:02:47,034 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 216 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:47,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 3549 Invalid, 2212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-03 02:02:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-03 02:02:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 437. [2022-11-03 02:02:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 314 states have (on average 1.4904458598726114) internal successors, (468), 319 states have internal predecessors, (468), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2022-11-03 02:02:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 661 transitions. [2022-11-03 02:02:47,385 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 661 transitions. Word has length 105 [2022-11-03 02:02:47,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:47,386 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 661 transitions. [2022-11-03 02:02:47,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-03 02:02:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 661 transitions. [2022-11-03 02:02:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 02:02:47,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:47,389 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:02:47,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:47,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:02:47,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:47,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1063871937, now seen corresponding path program 1 times [2022-11-03 02:02:47,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:47,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644713722] [2022-11-03 02:02:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:47,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:02:47,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:47,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644713722] [2022-11-03 02:02:47,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644713722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:47,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416031511] [2022-11-03 02:02:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:47,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:47,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:47,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:47,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:02:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:48,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:02:48,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:02:48,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:02:48,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416031511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:02:48,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [152938636] [2022-11-03 02:02:48,363 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-03 02:02:48,363 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:02:48,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:02:48,364 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:02:48,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:03:45,239 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 02:03:45,529 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 429 for LOIs [2022-11-03 02:03:45,826 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 442 for LOIs [2022-11-03 02:03:46,129 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 249 for LOIs [2022-11-03 02:03:46,203 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:03:46,501 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:03:59,296 WARN L234 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:05,239 WARN L234 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:41,760 WARN L234 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 508 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:00,303 WARN L234 SmtUtils]: Spent 18.14s on a formula simplification. DAG size of input: 619 DAG size of output: 483 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:22,774 WARN L234 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 558 DAG size of output: 413 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:29,493 WARN L234 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 551 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:43,340 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 537 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:55,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [152938636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:55,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:05:55,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-03 02:05:55,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434714250] [2022-11-03 02:05:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:55,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:05:55,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:05:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:05:55,145 INFO L87 Difference]: Start difference. First operand 437 states and 661 transitions. Second operand has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-03 02:06:06,718 WARN L234 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 537 DAG size of output: 403 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:12,879 WARN L234 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 585 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:29,409 INFO L93 Difference]: Finished difference Result 908 states and 1415 transitions. [2022-11-03 02:06:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 02:06:29,409 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 108 [2022-11-03 02:06:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:29,413 INFO L225 Difference]: With dead ends: 908 [2022-11-03 02:06:29,413 INFO L226 Difference]: Without dead ends: 596 [2022-11-03 02:06:29,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 144.3s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 02:06:29,415 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 113 mSDsluCounter, 4546 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 4636 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:29,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 4636 Invalid, 3857 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2022-11-03 02:06:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-03 02:06:29,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 522. [2022-11-03 02:06:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 391 states have (on average 1.5166240409207161) internal successors, (593), 398 states have internal predecessors, (593), 102 states have call successors, (102), 28 states have call predecessors, (102), 28 states have return successors, (101), 97 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-03 02:06:29,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 796 transitions. [2022-11-03 02:06:29,921 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 796 transitions. Word has length 108 [2022-11-03 02:06:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:29,921 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 796 transitions. [2022-11-03 02:06:29,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-03 02:06:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 796 transitions. [2022-11-03 02:06:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-03 02:06:29,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:29,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:29,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:06:30,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:30,132 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1569121407, now seen corresponding path program 1 times [2022-11-03 02:06:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:30,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707029917] [2022-11-03 02:06:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:06:30,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:30,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707029917] [2022-11-03 02:06:30,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707029917] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:30,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727477023] [2022-11-03 02:06:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:30,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:30,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:30,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90794266-ea72-49cb-b56a-2c2319766486/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:06:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:30,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:06:30,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:06:30,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 02:06:30,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727477023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:06:30,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [702828870] [2022-11-03 02:06:30,755 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-03 02:06:30,755 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:06:30,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:06:30,756 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:06:30,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:07:20,733 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:07:21,008 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:07:21,295 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 02:07:23,140 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-03 02:07:54,119 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-03 02:07:54,777 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 431 for LOIs [2022-11-03 02:07:59,212 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 431 for LOIs [2022-11-03 02:07:59,862 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-03 02:07:59,931 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-11-03 02:07:59,972 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 478 for LOIs [2022-11-03 02:08:04,808 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-03 02:08:06,687 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:08:13,365 WARN L234 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 505 DAG size of output: 494 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:47,206 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:53,880 WARN L234 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 486 DAG size of output: 283 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)