./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66ba4360d8cd17925c78e04f17940e3bee0e828bd2ae8cc06c9e6a2549687bf9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:43:59,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:59,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:59,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:59,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:59,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:59,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:59,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:59,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:59,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:59,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:59,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:59,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:59,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:59,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:59,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:59,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:59,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:59,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:59,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:59,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:59,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:59,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:59,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:59,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:59,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:59,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:59,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:59,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:59,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:59,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:59,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:59,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:59,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:59,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:59,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:59,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:59,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:59,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:59,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:59,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:59,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:43:59,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:59,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:59,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:59,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:59,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:59,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:59,698 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:59,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:59,698 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:59,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:59,699 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:59,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:59,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:59,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:59,704 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:59,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:59,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:59,704 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:59,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:59,705 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:43:59,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:59,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:43:59,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:59,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:59,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:59,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:59,709 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:43:59,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:59,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:59,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:59,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:59,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:59,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:59,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:59,711 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:59,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:59,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:59,713 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:59,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:59,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:59,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:59,713 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_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66ba4360d8cd17925c78e04f17940e3bee0e828bd2ae8cc06c9e6a2549687bf9 [2022-11-03 03:43:59,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:59,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:44:00,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:44:00,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:44:00,001 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:44:00,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec27_product35.cil.c [2022-11-03 03:44:00,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/data/67d70056e/89b2ba328d2e405793c583c439a69c33/FLAG0edf59dba [2022-11-03 03:44:00,731 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:44:00,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c [2022-11-03 03:44:00,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/data/67d70056e/89b2ba328d2e405793c583c439a69c33/FLAG0edf59dba [2022-11-03 03:44:00,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/data/67d70056e/89b2ba328d2e405793c583c439a69c33 [2022-11-03 03:44:00,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:44:00,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:44:00,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:00,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:44:00,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:44:00,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:00" (1/1) ... [2022-11-03 03:44:00,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1407ea9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:00, skipping insertion in model container [2022-11-03 03:44:00,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:44:00" (1/1) ... [2022-11-03 03:44:00,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:44:01,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:44:01,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c[40704,40717] [2022-11-03 03:44:01,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:01,707 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:44:01,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/sv-benchmarks/c/product-lines/email_spec27_product35.cil.c[40704,40717] [2022-11-03 03:44:01,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:44:01,871 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:44:01,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01 WrapperNode [2022-11-03 03:44:01,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:44:01,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:01,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:44:01,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:44:01,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:01,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:01,993 INFO L138 Inliner]: procedures = 137, calls = 248, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1140 [2022-11-03 03:44:02,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:44:02,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:44:02,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:44:02,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:44:02,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:44:02,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:44:02,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:44:02,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:44:02,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (1/1) ... [2022-11-03 03:44:02,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:44:02,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:44:02,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:44:02,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:44:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:44:02,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:44:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:44:02,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:44:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:44:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:44:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:44:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:44:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:44:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:44:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:44:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:44:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:44:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:44:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:44:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:44:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:44:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:44:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:44:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:44:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:44:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:44:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:44:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:44:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:44:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:44:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:44:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:44:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:44:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 03:44:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 03:44:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:44:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:44:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:44:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:44:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:44:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:44:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:44:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:44:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:44:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:44:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:44:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:44:02,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:44:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:44:02,205 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:44:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-03 03:44:02,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-03 03:44:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:44:02,208 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:44:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:44:02,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:44:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:44:02,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:44:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:44:02,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:44:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:44:02,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:44:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:44:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:44:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:44:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:44:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:44:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:44:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:44:02,525 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:44:02,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:44:03,603 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:44:04,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:44:04,283 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:44:04,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:44:04 BoogieIcfgContainer [2022-11-03 03:44:04,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:44:04,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:44:04,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:44:04,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:44:04,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:44:00" (1/3) ... [2022-11-03 03:44:04,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7ec715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:44:04, skipping insertion in model container [2022-11-03 03:44:04,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:44:01" (2/3) ... [2022-11-03 03:44:04,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7ec715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:44:04, skipping insertion in model container [2022-11-03 03:44:04,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:44:04" (3/3) ... [2022-11-03 03:44:04,298 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product35.cil.c [2022-11-03 03:44:04,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:44:04,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:44:04,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:44:04,412 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;@395ce0e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:44:04,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:44:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 144 states have internal predecessors, (178), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-03 03:44:04,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 03:44:04,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:04,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:04,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:04,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:04,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1795063964, now seen corresponding path program 1 times [2022-11-03 03:44:04,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:04,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379537028] [2022-11-03 03:44:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:04,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379537028] [2022-11-03 03:44:04,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379537028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:04,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:04,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:44:04,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832436644] [2022-11-03 03:44:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:04,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:44:04,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:44:04,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:44:04,987 INFO L87 Difference]: Start difference. First operand has 248 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 144 states have internal predecessors, (178), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:05,211 INFO L93 Difference]: Finished difference Result 404 states and 535 transitions. [2022-11-03 03:44:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:44:05,214 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 110 [2022-11-03 03:44:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:05,236 INFO L225 Difference]: With dead ends: 404 [2022-11-03 03:44:05,241 INFO L226 Difference]: Without dead ends: 245 [2022-11-03 03:44:05,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:44:05,256 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:05,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:44:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-03 03:44:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-11-03 03:44:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 141 states have internal predecessors, (172), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 03:44:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 325 transitions. [2022-11-03 03:44:05,330 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 325 transitions. Word has length 110 [2022-11-03 03:44:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:05,332 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 325 transitions. [2022-11-03 03:44:05,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 325 transitions. [2022-11-03 03:44:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 03:44:05,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:05,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:05,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:44:05,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:05,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:05,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2040279966, now seen corresponding path program 1 times [2022-11-03 03:44:05,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:05,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293335162] [2022-11-03 03:44:05,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:05,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:05,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:05,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293335162] [2022-11-03 03:44:05,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293335162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:05,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:05,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830567419] [2022-11-03 03:44:05,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:05,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:05,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:05,789 INFO L87 Difference]: Start difference. First operand 245 states and 325 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:06,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:06,015 INFO L93 Difference]: Finished difference Result 400 states and 520 transitions. [2022-11-03 03:44:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:06,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 111 [2022-11-03 03:44:06,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:06,025 INFO L225 Difference]: With dead ends: 400 [2022-11-03 03:44:06,025 INFO L226 Difference]: Without dead ends: 247 [2022-11-03 03:44:06,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:06,033 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:06,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:44:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-03 03:44:06,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-11-03 03:44:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 139 states have (on average 1.2517985611510791) internal successors, (174), 143 states have internal predecessors, (174), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 03:44:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 327 transitions. [2022-11-03 03:44:06,080 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 327 transitions. Word has length 111 [2022-11-03 03:44:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:06,082 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 327 transitions. [2022-11-03 03:44:06,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 327 transitions. [2022-11-03 03:44:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-03 03:44:06,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:06,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:06,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:44:06,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash -808860573, now seen corresponding path program 1 times [2022-11-03 03:44:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:06,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528458894] [2022-11-03 03:44:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:06,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:06,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528458894] [2022-11-03 03:44:06,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528458894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:06,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:06,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995806113] [2022-11-03 03:44:06,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:06,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:06,342 INFO L87 Difference]: Start difference. First operand 247 states and 327 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:06,542 INFO L93 Difference]: Finished difference Result 529 states and 721 transitions. [2022-11-03 03:44:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 116 [2022-11-03 03:44:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:06,547 INFO L225 Difference]: With dead ends: 529 [2022-11-03 03:44:06,547 INFO L226 Difference]: Without dead ends: 300 [2022-11-03 03:44:06,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:06,549 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 59 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:06,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 569 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:44:06,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-11-03 03:44:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2022-11-03 03:44:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 173 states have (on average 1.323699421965318) internal successors, (229), 177 states have internal predecessors, (229), 91 states have call successors, (91), 30 states have call predecessors, (91), 30 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-03 03:44:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 410 transitions. [2022-11-03 03:44:06,581 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 410 transitions. Word has length 116 [2022-11-03 03:44:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:06,581 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 410 transitions. [2022-11-03 03:44:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 03:44:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 410 transitions. [2022-11-03 03:44:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 03:44:06,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:06,589 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:06,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:44:06,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash 748799449, now seen corresponding path program 1 times [2022-11-03 03:44:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:06,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288464672] [2022-11-03 03:44:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:06,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:06,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288464672] [2022-11-03 03:44:06,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288464672] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:44:06,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093853817] [2022-11-03 03:44:06,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:06,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:44:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:44:06,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:44:06,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:44:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:07,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:44:07,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:07,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:44:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:44:07,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093853817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:44:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [239533825] [2022-11-03 03:44:07,561 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-03 03:44:07,561 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:44:07,565 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:44:07,570 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:44:07,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:44:44,925 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:44:45,233 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 03:44:47,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:44:47,625 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-03 03:44:50,946 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:44:50,986 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2022-11-03 03:44:51,028 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-11-03 03:44:51,068 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-03 03:44:51,116 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:45:04,966 WARN L234 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:11,147 WARN L234 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:46,186 WARN L234 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 508 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:05,659 WARN L234 SmtUtils]: Spent 19.14s on a formula simplification. DAG size of input: 583 DAG size of output: 452 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:24,476 WARN L234 SmtUtils]: Spent 18.36s on a formula simplification. DAG size of input: 585 DAG size of output: 427 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:04,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [239533825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:04,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:47:04,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-03 03:47:04,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851996851] [2022-11-03 03:47:04,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:04,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-03 03:47:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-03 03:47:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1958, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 03:47:04,580 INFO L87 Difference]: Start difference. First operand 295 states and 410 transitions. Second operand has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-03 03:47:18,470 WARN L234 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 487 DAG size of output: 400 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:27,544 WARN L234 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 496 DAG size of output: 380 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:36,744 WARN L234 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 563 DAG size of output: 364 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:46,046 WARN L234 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 564 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:55,878 WARN L234 SmtUtils]: Spent 9.20s on a formula simplification. DAG size of input: 565 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:05,009 WARN L234 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 562 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:15,884 WARN L234 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 575 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:23,636 WARN L234 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 516 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:55,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:55,769 INFO L93 Difference]: Finished difference Result 663 states and 956 transitions. [2022-11-03 03:48:55,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-03 03:48:55,770 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) Word has length 117 [2022-11-03 03:48:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:55,774 INFO L225 Difference]: With dead ends: 663 [2022-11-03 03:48:55,774 INFO L226 Difference]: Without dead ends: 386 [2022-11-03 03:48:55,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 212.9s TimeCoverageRelationStatistics Valid=189, Invalid=2891, Unknown=0, NotChecked=0, Total=3080 [2022-11-03 03:48:55,777 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 281 mSDsluCounter, 7233 mSDsCounter, 0 mSdLazyCounter, 7181 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 7218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:55,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 7260 Invalid, 7218 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [37 Valid, 7181 Invalid, 0 Unknown, 0 Unchecked, 31.0s Time] [2022-11-03 03:48:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-03 03:48:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 362. [2022-11-03 03:48:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 229 states have (on average 1.3406113537117903) internal successors, (307), 233 states have internal predecessors, (307), 97 states have call successors, (97), 37 states have call predecessors, (97), 35 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-11-03 03:48:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 500 transitions. [2022-11-03 03:48:55,933 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 500 transitions. Word has length 117 [2022-11-03 03:48:55,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:55,934 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 500 transitions. [2022-11-03 03:48:55,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-03 03:48:55,934 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 500 transitions. [2022-11-03 03:48:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 03:48:55,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:55,937 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:55,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:48:56,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:56,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:56,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1778344412, now seen corresponding path program 1 times [2022-11-03 03:48:56,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:56,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937536901] [2022-11-03 03:48:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:56,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:56,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937536901] [2022-11-03 03:48:56,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937536901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:56,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674404712] [2022-11-03 03:48:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:56,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:56,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:56,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:56,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:48:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:56,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:48:56,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:56,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:56,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674404712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:56,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1751221727] [2022-11-03 03:48:56,893 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-03 03:48:56,894 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:48:56,894 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:48:56,895 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:48:56,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:49:36,458 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:49:36,797 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 262 for LOIs [2022-11-03 03:49:39,010 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 03:49:39,359 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2022-11-03 03:49:42,501 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-11-03 03:49:42,537 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 224 for LOIs [2022-11-03 03:49:42,572 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 232 for LOIs [2022-11-03 03:49:42,606 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 249 for LOIs [2022-11-03 03:49:42,658 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:49:58,184 WARN L234 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:50:05,329 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:50:35,479 WARN L234 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 498 DAG size of output: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:50:44,274 WARN L234 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 508 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:51:03,397 WARN L234 SmtUtils]: Spent 17.35s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:51:16,826 WARN L234 SmtUtils]: Spent 11.87s on a formula simplification. DAG size of input: 585 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:51:42,219 WARN L234 SmtUtils]: Spent 23.74s on a formula simplification. DAG size of input: 584 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:52:24,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1751221727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:24,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:52:24,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-11-03 03:52:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814956531] [2022-11-03 03:52:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:24,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 03:52:24,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 03:52:24,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2314, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 03:52:24,793 INFO L87 Difference]: Start difference. First operand 362 states and 500 transitions. Second operand has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-03 03:52:34,443 WARN L234 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 486 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:52:40,429 WARN L234 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 490 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:53:03,353 WARN L234 SmtUtils]: Spent 22.48s on a formula simplification. DAG size of input: 490 DAG size of output: 442 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:53:25,282 WARN L234 SmtUtils]: Spent 21.44s on a formula simplification. DAG size of input: 585 DAG size of output: 406 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:04,887 WARN L234 SmtUtils]: Spent 12.29s on a formula simplification. DAG size of input: 596 DAG size of output: 322 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:24,176 WARN L234 SmtUtils]: Spent 18.33s on a formula simplification. DAG size of input: 585 DAG size of output: 403 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:51,624 INFO L93 Difference]: Finished difference Result 758 states and 1087 transitions. [2022-11-03 03:54:51,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-03 03:54:51,632 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 123 [2022-11-03 03:54:51,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:51,637 INFO L225 Difference]: With dead ends: 758 [2022-11-03 03:54:51,637 INFO L226 Difference]: Without dead ends: 481 [2022-11-03 03:54:51,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 280.6s TimeCoverageRelationStatistics Valid=219, Invalid=3687, Unknown=0, NotChecked=0, Total=3906 [2022-11-03 03:54:51,640 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 163 mSDsluCounter, 6068 mSDsCounter, 0 mSdLazyCounter, 6301 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6095 SdHoareTripleChecker+Invalid, 6336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 6301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:51,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 6095 Invalid, 6336 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 6301 Invalid, 0 Unknown, 0 Unchecked, 27.7s Time] [2022-11-03 03:54:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-03 03:54:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 376. [2022-11-03 03:54:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 241 states have (on average 1.3485477178423237) internal successors, (325), 245 states have internal predecessors, (325), 98 states have call successors, (98), 38 states have call predecessors, (98), 36 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2022-11-03 03:54:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 520 transitions. [2022-11-03 03:54:51,835 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 520 transitions. Word has length 123 [2022-11-03 03:54:51,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:51,836 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 520 transitions. [2022-11-03 03:54:51,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-03 03:54:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 520 transitions. [2022-11-03 03:54:51,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 03:54:51,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:51,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:54:51,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:52,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:52,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:52,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1735392277, now seen corresponding path program 1 times [2022-11-03 03:54:52,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:52,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685993337] [2022-11-03 03:54:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:54:52,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:52,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685993337] [2022-11-03 03:54:52,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685993337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:54:52,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078895711] [2022-11-03 03:54:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:52,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:52,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:52,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:52,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744386e0-da70-48d1-99e5-64a446b9b828/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:54:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:52,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:54:52,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:54:52,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:54:52,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078895711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:52,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2116304173] [2022-11-03 03:54:52,773 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-03 03:54:52,773 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:54:52,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:54:52,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:54:52,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:55:18,183 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:55:18,587 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 03:55:20,400 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:55:20,439 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:55:20,799 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-11-03 03:55:23,778 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 277 for LOIs [2022-11-03 03:55:40,770 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-11-03 03:55:41,489 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-11-03 03:55:41,549 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-03 03:55:42,429 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-03 03:55:42,513 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-11-03 03:55:43,185 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 478 for LOIs [2022-11-03 03:55:48,236 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-11-03 03:55:48,290 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-03 03:55:48,344 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:56:03,996 WARN L234 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:11,389 WARN L234 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:41,963 WARN L234 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 498 DAG size of output: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)