./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh --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 b453d764da4cb622a1911439b5a79bae9155e32b42a83c5d4472e5a8d62a8d39 --- 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-2329fc7 [2022-12-14 11:50:26,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:50:26,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:50:26,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:50:26,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:50:26,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:50:26,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:50:26,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:50:26,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:50:26,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:50:26,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:50:26,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:50:26,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:50:26,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:50:26,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:50:26,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:50:26,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:50:26,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:50:26,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:50:26,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:50:26,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:50:26,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:50:26,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:50:26,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:50:26,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:50:26,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:50:26,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:50:26,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:50:26,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:50:26,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:50:26,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:50:26,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:50:26,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:50:26,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:50:26,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:50:26,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:50:26,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:50:26,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:50:26,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:50:26,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:50:26,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:50:26,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:50:26,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:50:26,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:50:26,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:50:26,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:50:26,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:50:26,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:50:26,626 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:50:26,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:50:26,626 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:50:26,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:50:26,626 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:50:26,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:50:26,627 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:50:26,627 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:50:26,627 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:50:26,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:50:26,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:50:26,628 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:50:26,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:50:26,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:50:26,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:50:26,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:50:26,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:50:26,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:50:26,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:50:26,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:50:26,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:50:26,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:50:26,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:50:26,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:50:26,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:50:26,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:50:26,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:50:26,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:50:26,638 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:50:26,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:50:26,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:50:26,638 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:50:26,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:50:26,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:50:26,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:50:26,639 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_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b453d764da4cb622a1911439b5a79bae9155e32b42a83c5d4472e5a8d62a8d39 [2022-12-14 11:50:26,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:50:26,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:50:26,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:50:26,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:50:26,840 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:50:26,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec0_product24.cil.c [2022-12-14 11:50:29,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:50:29,671 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:50:29,671 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c [2022-12-14 11:50:29,682 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/data/fc2c0019b/0a2a5c25ddcc4b15877914158d3bf63c/FLAGb4dfcaaf0 [2022-12-14 11:50:29,694 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/data/fc2c0019b/0a2a5c25ddcc4b15877914158d3bf63c [2022-12-14 11:50:29,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:50:29,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:50:29,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:50:29,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:50:29,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:50:29,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:29" (1/1) ... [2022-12-14 11:50:29,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214c4f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:29, skipping insertion in model container [2022-12-14 11:50:29,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:29" (1/1) ... [2022-12-14 11:50:29,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:50:29,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:50:30,026 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,031 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,042 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,046 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,076 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,077 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,080 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c[25283,25296] [2022-12-14 11:50:30,136 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:50:30,198 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:50:30,223 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,225 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,229 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,230 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,233 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,234 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,236 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c[25283,25296] [2022-12-14 11:50:30,254 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:50:30,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:50:30,298 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:50:30,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30 WrapperNode [2022-12-14 11:50:30,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:50:30,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:50:30,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:50:30,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:50:30,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,360 INFO L138 Inliner]: procedures = 130, calls = 208, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1046 [2022-12-14 11:50:30,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:50:30,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:50:30,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:50:30,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:50:30,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:50:30,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:50:30,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:50:30,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:50:30,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (1/1) ... [2022-12-14 11:50:30,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:50:30,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:50:30,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:50:30,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:50:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:50:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:50:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:50:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:50:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 11:50:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 11:50:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:50:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:50:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 11:50:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 11:50:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:50:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:50:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:50:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:50:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:50:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 11:50:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:50:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 11:50:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:50:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:50:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:50:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:50:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:50:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:50:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:50:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:50:30,474 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:50:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:50:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:50:30,641 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:50:30,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:50:31,174 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:50:31,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:50:31,459 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:50:31,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:31 BoogieIcfgContainer [2022-12-14 11:50:31,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:50:31,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:50:31,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:50:31,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:50:31,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:50:29" (1/3) ... [2022-12-14 11:50:31,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8d941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:50:31, skipping insertion in model container [2022-12-14 11:50:31,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:30" (2/3) ... [2022-12-14 11:50:31,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8d941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:50:31, skipping insertion in model container [2022-12-14 11:50:31,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:31" (3/3) ... [2022-12-14 11:50:31,468 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product24.cil.c [2022-12-14 11:50:31,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:50:31,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:50:31,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:50:31,534 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;@d03ac4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:50:31,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:50:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-14 11:50:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 11:50:31,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:31,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:50:31,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1729340443, now seen corresponding path program 1 times [2022-12-14 11:50:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740257073] [2022-12-14 11:50:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:31,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:31,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740257073] [2022-12-14 11:50:31,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740257073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:50:31,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:50:31,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:50:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589927966] [2022-12-14 11:50:31,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:50:31,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:50:31,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:50:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:50:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:50:31,894 INFO L87 Difference]: Start difference. First operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:32,003 INFO L93 Difference]: Finished difference Result 239 states and 320 transitions. [2022-12-14 11:50:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:50:32,006 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-12-14 11:50:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:32,015 INFO L225 Difference]: With dead ends: 239 [2022-12-14 11:50:32,015 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 11:50:32,019 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 [2022-12-14 11:50:32,023 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:32,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:50:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 11:50:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-12-14 11:50:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 95 states have internal predecessors, (123), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 11:50:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 214 transitions. [2022-12-14 11:50:32,078 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 214 transitions. Word has length 66 [2022-12-14 11:50:32,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:50:32,080 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 214 transitions. [2022-12-14 11:50:32,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 214 transitions. [2022-12-14 11:50:32,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:50:32,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:32,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 11:50:32,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:50:32,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 925012818, now seen corresponding path program 1 times [2022-12-14 11:50:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690854978] [2022-12-14 11:50:32,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:32,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:32,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:32,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690854978] [2022-12-14 11:50:32,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690854978] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:50:32,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:50:32,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:50:32,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491533319] [2022-12-14 11:50:32,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:50:32,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:50:32,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:50:32,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:50:32,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:50:32,250 INFO L87 Difference]: Start difference. First operand 158 states and 214 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:32,346 INFO L93 Difference]: Finished difference Result 235 states and 308 transitions. [2022-12-14 11:50:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:50:32,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-12-14 11:50:32,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:32,348 INFO L225 Difference]: With dead ends: 235 [2022-12-14 11:50:32,349 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 11:50:32,349 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 [2022-12-14 11:50:32,351 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:32,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:50:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 11:50:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-12-14 11:50:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 97 states have internal predecessors, (125), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 11:50:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 216 transitions. [2022-12-14 11:50:32,368 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 216 transitions. Word has length 67 [2022-12-14 11:50:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:50:32,368 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 216 transitions. [2022-12-14 11:50:32,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,369 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 216 transitions. [2022-12-14 11:50:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 11:50:32,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:32,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:50:32,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:50:32,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:32,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:32,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2101563538, now seen corresponding path program 1 times [2022-12-14 11:50:32,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:32,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373409656] [2022-12-14 11:50:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:32,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:32,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:32,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373409656] [2022-12-14 11:50:32,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373409656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:50:32,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:50:32,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:50:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455307751] [2022-12-14 11:50:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:50:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:50:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:50:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:50:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:50:32,479 INFO L87 Difference]: Start difference. First operand 160 states and 216 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:32,564 INFO L93 Difference]: Finished difference Result 350 states and 491 transitions. [2022-12-14 11:50:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:50:32,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-12-14 11:50:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:32,567 INFO L225 Difference]: With dead ends: 350 [2022-12-14 11:50:32,567 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 11:50:32,568 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 [2022-12-14 11:50:32,569 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 57 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:32,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 374 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:50:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 11:50:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2022-12-14 11:50:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 128 states have (on average 1.390625) internal successors, (178), 129 states have internal predecessors, (178), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 11:50:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 291 transitions. [2022-12-14 11:50:32,588 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 291 transitions. Word has length 72 [2022-12-14 11:50:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:50:32,588 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 291 transitions. [2022-12-14 11:50:32,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:50:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 291 transitions. [2022-12-14 11:50:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:50:32,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:32,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:50:32,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:50:32,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash -875986657, now seen corresponding path program 1 times [2022-12-14 11:50:32,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:32,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421165399] [2022-12-14 11:50:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:32,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:32,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421165399] [2022-12-14 11:50:32,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421165399] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:50:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70290280] [2022-12-14 11:50:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:32,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:50:32,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:50:32,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:50:32,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:50:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:32,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:50:32,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:50:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:33,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:50:33,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:50:33,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70290280] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:50:33,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [818891152] [2022-12-14 11:50:33,097 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 11:50:33,097 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:50:33,101 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:50:33,107 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:50:33,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:51:14,036 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 11:51:14,348 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:51:14,669 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:51:47,841 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 596 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:51:54,970 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 598 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:52:04,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [818891152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:04,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:52:04,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 11:52:04,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387201438] [2022-12-14 11:52:04,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:04,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 11:52:04,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:04,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 11:52:04,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:52:04,710 INFO L87 Difference]: Start difference. First operand 203 states and 291 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 11:52:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:22,092 INFO L93 Difference]: Finished difference Result 489 states and 750 transitions. [2022-12-14 11:52:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:52:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 73 [2022-12-14 11:52:22,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:22,096 INFO L225 Difference]: With dead ends: 489 [2022-12-14 11:52:22,096 INFO L226 Difference]: Without dead ends: 304 [2022-12-14 11:52:22,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 62.0s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:52:22,098 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 167 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:22,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2707 Invalid, 1797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 11:52:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-14 11:52:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 231. [2022-12-14 11:52:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 155 states have (on average 1.4) internal successors, (217), 156 states have internal predecessors, (217), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 11:52:22,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 330 transitions. [2022-12-14 11:52:22,196 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 330 transitions. Word has length 73 [2022-12-14 11:52:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:22,196 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 330 transitions. [2022-12-14 11:52:22,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 11:52:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 330 transitions. [2022-12-14 11:52:22,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:52:22,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:22,200 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:22,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:52:22,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:52:22,401 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:22,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:22,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2089589459, now seen corresponding path program 1 times [2022-12-14 11:52:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:22,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114662337] [2022-12-14 11:52:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:22,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:52:22,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114662337] [2022-12-14 11:52:22,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114662337] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:52:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86739461] [2022-12-14 11:52:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:22,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:52:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:22,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:52:22,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:52:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:22,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:52:22,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:52:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:52:22,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:52:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:52:22,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86739461] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:52:22,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [159831600] [2022-12-14 11:52:22,744 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 11:52:22,744 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:52:22,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:52:22,745 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:52:22,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:53:10,189 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 11:53:10,505 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 11:53:10,828 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:53:45,344 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 583 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:53:54,866 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 581 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:54:01,359 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 579 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:54:09,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [159831600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:54:09,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:54:09,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:54:09,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454452333] [2022-12-14 11:54:09,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:54:09,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:54:09,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:54:09,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:54:09,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:54:09,877 INFO L87 Difference]: Start difference. First operand 231 states and 330 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 11:54:37,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:54:37,466 INFO L93 Difference]: Finished difference Result 532 states and 808 transitions. [2022-12-14 11:54:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 11:54:37,467 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 79 [2022-12-14 11:54:37,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:54:37,469 INFO L225 Difference]: With dead ends: 532 [2022-12-14 11:54:37,469 INFO L226 Difference]: Without dead ends: 347 [2022-12-14 11:54:37,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 80.7s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 11:54:37,470 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 155 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:54:37,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2670 Invalid, 1942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 11:54:37,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-12-14 11:54:37,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 274. [2022-12-14 11:54:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 195 states have (on average 1.4512820512820512) internal successors, (283), 197 states have internal predecessors, (283), 59 states have call successors, (59), 19 states have call predecessors, (59), 19 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 11:54:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 400 transitions. [2022-12-14 11:54:37,631 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 400 transitions. Word has length 79 [2022-12-14 11:54:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:54:37,631 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 400 transitions. [2022-12-14 11:54:37,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 11:54:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 400 transitions. [2022-12-14 11:54:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 11:54:37,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:54:37,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:54:37,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:54:37,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:54:37,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:54:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:54:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash 516827834, now seen corresponding path program 1 times [2022-12-14 11:54:37,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:54:37,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133065706] [2022-12-14 11:54:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:54:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:54:37,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:54:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133065706] [2022-12-14 11:54:37,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133065706] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:54:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192660031] [2022-12-14 11:54:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:37,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:54:37,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:54:37,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:54:37,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:54:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:38,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:54:38,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:54:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:54:38,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:54:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:54:38,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192660031] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:54:38,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252232457] [2022-12-14 11:54:38,228 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 11:54:38,228 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:54:38,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:54:38,229 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:54:38,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:55:22,435 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 11:55:22,757 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 11:55:22,822 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-12-14 11:55:22,891 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:55:23,212 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-12-14 11:55:23,280 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:56:00,657 WARN L233 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:56:06,468 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:56:18,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [252232457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:56:18,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:56:18,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 11:56:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849790066] [2022-12-14 11:56:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:56:18,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 11:56:18,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:56:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 11:56:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:56:18,407 INFO L87 Difference]: Start difference. First operand 274 states and 400 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 11:56:34,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:56:34,354 INFO L93 Difference]: Finished difference Result 602 states and 927 transitions. [2022-12-14 11:56:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:56:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 82 [2022-12-14 11:56:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:56:34,357 INFO L225 Difference]: With dead ends: 602 [2022-12-14 11:56:34,357 INFO L226 Difference]: Without dead ends: 417 [2022-12-14 11:56:34,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 61.2s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:56:34,358 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 164 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:56:34,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3681 Invalid, 3380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-12-14 11:56:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-12-14 11:56:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 370. [2022-12-14 11:56:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 284 states have (on average 1.5070422535211268) internal successors, (428), 287 states have internal predecessors, (428), 63 states have call successors, (63), 22 states have call predecessors, (63), 22 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:56:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 553 transitions. [2022-12-14 11:56:34,613 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 553 transitions. Word has length 82 [2022-12-14 11:56:34,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:56:34,613 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 553 transitions. [2022-12-14 11:56:34,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 11:56:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 553 transitions. [2022-12-14 11:56:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 11:56:34,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:56:34,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:56:34,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:56:34,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 11:56:34,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:56:34,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:56:34,818 INFO L85 PathProgramCache]: Analyzing trace with hash 208805645, now seen corresponding path program 1 times [2022-12-14 11:56:34,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:56:34,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551571544] [2022-12-14 11:56:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:34,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:56:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:56:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:34,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:56:34,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551571544] [2022-12-14 11:56:34,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551571544] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:56:34,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453790547] [2022-12-14 11:56:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:34,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:56:34,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:56:34,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:56:34,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:56:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:56:35,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:56:35,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:56:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:35,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:56:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:35,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453790547] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:56:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [937623360] [2022-12-14 11:56:35,177 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 11:56:35,177 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:56:35,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:56:35,178 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:56:35,178 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:57:22,897 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:57:23,211 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 11:57:23,525 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 11:57:25,276 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 11:57:36,033 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 11:57:36,071 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 11:57:36,116 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 11:57:36,158 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 449 for LOIs [2022-12-14 11:57:36,846 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:58:11,084 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 573 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:58:23,311 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 583 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:58:29,715 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 581 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:59:26,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [937623360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:59:26,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:59:26,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [4, 4, 4] total 56 [2022-12-14 11:59:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60027913] [2022-12-14 11:59:26,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:59:26,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-14 11:59:26,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:59:26,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-14 11:59:26,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 11:59:26,201 INFO L87 Difference]: Start difference. First operand 370 states and 553 transitions. Second operand has 51 states, 36 states have (on average 1.25) internal successors, (45), 34 states have internal predecessors, (45), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-14 12:01:18,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:01:18,522 INFO L93 Difference]: Finished difference Result 678 states and 1037 transitions. [2022-12-14 12:01:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-14 12:01:18,523 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 36 states have (on average 1.25) internal successors, (45), 34 states have internal predecessors, (45), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 81 [2022-12-14 12:01:18,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:01:18,524 INFO L225 Difference]: With dead ends: 678 [2022-12-14 12:01:18,524 INFO L226 Difference]: Without dead ends: 493 [2022-12-14 12:01:18,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 205.4s TimeCoverageRelationStatistics Valid=635, Invalid=5845, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 12:01:18,526 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 420 mSDsluCounter, 4230 mSDsCounter, 0 mSdLazyCounter, 5566 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 5599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:01:18,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 4434 Invalid, 5599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 5566 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-12-14 12:01:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-14 12:01:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 434. [2022-12-14 12:01:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 334 states have (on average 1.4970059880239521) internal successors, (500), 338 states have internal predecessors, (500), 72 states have call successors, (72), 28 states have call predecessors, (72), 27 states have return successors, (72), 67 states have call predecessors, (72), 71 states have call successors, (72) [2022-12-14 12:01:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 644 transitions. [2022-12-14 12:01:18,884 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 644 transitions. Word has length 81 [2022-12-14 12:01:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:01:18,885 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 644 transitions. [2022-12-14 12:01:18,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 36 states have (on average 1.25) internal successors, (45), 34 states have internal predecessors, (45), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-14 12:01:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 644 transitions. [2022-12-14 12:01:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 12:01:18,887 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:01:18,887 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:01:18,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:01:19,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:19,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:01:19,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:01:19,090 INFO L85 PathProgramCache]: Analyzing trace with hash 893838936, now seen corresponding path program 1 times [2022-12-14 12:01:19,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:01:19,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981720675] [2022-12-14 12:01:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:19,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:01:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 12:01:19,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:01:19,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981720675] [2022-12-14 12:01:19,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981720675] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:01:19,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811001749] [2022-12-14 12:01:19,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:01:19,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:01:19,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:01:19,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:01:19,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:01:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:01:19,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:01:19,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:01:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:01:19,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:01:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:01:19,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811001749] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:01:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [838855530] [2022-12-14 12:01:19,591 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 12:01:19,591 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:01:19,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:01:19,591 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:01:19,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:02:03,231 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:02:03,554 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 12:02:03,872 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:02:53,964 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 597 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:02:53,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [838855530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:02:53,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6, 5, 5] total 33 [2022-12-14 12:02:53,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595776516] [2022-12-14 12:02:53,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:02:53,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:02:53,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=924, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 12:02:53,970 INFO L87 Difference]: Start difference. First operand 434 states and 644 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 12:03:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:03:09,911 INFO L93 Difference]: Finished difference Result 801 states and 1230 transitions. [2022-12-14 12:03:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 12:03:09,912 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 84 [2022-12-14 12:03:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:03:09,914 INFO L225 Difference]: With dead ends: 801 [2022-12-14 12:03:09,914 INFO L226 Difference]: Without dead ends: 601 [2022-12-14 12:03:09,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 59.2s TimeCoverageRelationStatistics Valid=194, Invalid=1288, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 12:03:09,915 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 261 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:03:09,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 2795 Invalid, 2267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 12:03:09,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-14 12:03:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 476. [2022-12-14 12:03:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 373 states have (on average 1.5120643431635388) internal successors, (564), 378 states have internal predecessors, (564), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (74), 68 states have call predecessors, (74), 73 states have call successors, (74) [2022-12-14 12:03:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 712 transitions. [2022-12-14 12:03:10,359 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 712 transitions. Word has length 84 [2022-12-14 12:03:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:03:10,360 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 712 transitions. [2022-12-14 12:03:10,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 12:03:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 712 transitions. [2022-12-14 12:03:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 12:03:10,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:03:10,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:03:10,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 12:03:10,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:03:10,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:03:10,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:03:10,562 INFO L85 PathProgramCache]: Analyzing trace with hash 187660550, now seen corresponding path program 1 times [2022-12-14 12:03:10,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:03:10,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647339562] [2022-12-14 12:03:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:03:10,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:03:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:03:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:03:10,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:03:10,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647339562] [2022-12-14 12:03:10,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647339562] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:03:10,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392175926] [2022-12-14 12:03:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:03:10,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:03:10,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:03:10,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:03:10,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf554678-33a2-47ab-8f81-397e24a6bf31/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:03:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:03:10,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:03:10,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:03:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:03:10,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:03:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:03:11,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392175926] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:03:11,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [366619668] [2022-12-14 12:03:11,020 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 12:03:11,021 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:03:11,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:03:11,021 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:03:11,021 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:04:07,491 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:04:07,804 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 12:04:07,868 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-12-14 12:04:07,936 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:04:08,258 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-12-14 12:04:08,327 INFO L180 IcfgInterpreter]: Interpretation finished