./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/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_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/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_5a984be1-f8a3-4c56-a88d-e4e1121a087a/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 c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 --- 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 03:59:47,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:47,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:47,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:47,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:47,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:47,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:47,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:47,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:47,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:47,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:47,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:47,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:47,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:47,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:47,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:47,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:47,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:47,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:47,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:47,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:47,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:47,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:47,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:47,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:47,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:47,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:47,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:47,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:47,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:47,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:47,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:47,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:47,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:47,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:47,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:47,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:47,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:47,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:47,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:47,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:47,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:59:47,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:47,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:47,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:47,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:47,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:47,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:47,819 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:47,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:47,820 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:47,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:47,820 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:47,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:47,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:47,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:47,822 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:47,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:47,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:47,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:47,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:47,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:59:47,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:47,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:59:47,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:47,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:47,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:47,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:47,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:59:47,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:47,827 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:47,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:47,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:47,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:47,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:47,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:47,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:47,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:47,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:47,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:47,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:47,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:47,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:47,831 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_5a984be1-f8a3-4c56-a88d-e4e1121a087a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 [2022-11-03 03:59:48,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:48,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:48,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:48,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:48,262 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:48,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-11-03 03:59:48,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/data/8bc8dc2a9/ab7e1a3880dd4852a66b442255f74bd4/FLAG728c36e60 [2022-11-03 03:59:49,151 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:49,156 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-11-03 03:59:49,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/data/8bc8dc2a9/ab7e1a3880dd4852a66b442255f74bd4/FLAG728c36e60 [2022-11-03 03:59:49,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/data/8bc8dc2a9/ab7e1a3880dd4852a66b442255f74bd4 [2022-11-03 03:59:49,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:49,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:49,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:49,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:49,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:49,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:49" (1/1) ... [2022-11-03 03:59:49,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3974b5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:49, skipping insertion in model container [2022-11-03 03:59:49,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:49" (1/1) ... [2022-11-03 03:59:49,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:49,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:50,215 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_5a984be1-f8a3-4c56-a88d-e4e1121a087a/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-11-03 03:59:50,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:50,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:50,419 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_5a984be1-f8a3-4c56-a88d-e4e1121a087a/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-11-03 03:59:50,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:50,462 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:50,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50 WrapperNode [2022-11-03 03:59:50,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:50,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:50,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:50,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:50,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,565 INFO L138 Inliner]: procedures = 137, calls = 247, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1148 [2022-11-03 03:59:50,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:50,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:50,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:50,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:50,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:50,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:50,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:50,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:50,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:50,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:50,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:50,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:50,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:59:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:59:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:59:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:59:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:59:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:59:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:59:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:59:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:59:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:59:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:59:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:59:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:59:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:59:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:59:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:59:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:59:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:59:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:59:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:59:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:59:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:59:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:59:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:59:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:59:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:59:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:59:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:59:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:59:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 03:59:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 03:59:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:59:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:59:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:59:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:59:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:59:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:59:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:59:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:59:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:59:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:59:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:59:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:59:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:59:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:59:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:59:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:59:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:59:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:59:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:59:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:59:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:59:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:59:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:59:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:59:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:59:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:59:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:59:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:59:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:59:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:50,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:51,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:51,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:52,509 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:53,303 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:53,303 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:59:53,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:53 BoogieIcfgContainer [2022-11-03 03:59:53,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:53,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:53,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:53,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:53,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:49" (1/3) ... [2022-11-03 03:59:53,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e48ed31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:53, skipping insertion in model container [2022-11-03 03:59:53,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (2/3) ... [2022-11-03 03:59:53,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e48ed31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:53, skipping insertion in model container [2022-11-03 03:59:53,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:53" (3/3) ... [2022-11-03 03:59:53,321 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2022-11-03 03:59:53,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:53,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:53,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:53,469 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;@fd6f63c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:53,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 03:59:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 03:59:53,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:53,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:53,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:53,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1350226867, now seen corresponding path program 1 times [2022-11-03 03:59:53,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:53,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517383116] [2022-11-03 03:59:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:54,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:54,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517383116] [2022-11-03 03:59:54,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517383116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:54,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:54,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:59:54,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794225064] [2022-11-03 03:59:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:54,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:59:54,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:54,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:59:54,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:59:54,141 INFO L87 Difference]: Start difference. First operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:54,363 INFO L93 Difference]: Finished difference Result 392 states and 521 transitions. [2022-11-03 03:59:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:59:54,366 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-03 03:59:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:54,382 INFO L225 Difference]: With dead ends: 392 [2022-11-03 03:59:54,382 INFO L226 Difference]: Without dead ends: 239 [2022-11-03 03:59:54,389 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 03:59:54,393 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:54,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:59:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-03 03:59:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-03 03:59:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 138 states have internal predecessors, (169), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-03 03:59:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2022-11-03 03:59:54,497 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 71 [2022-11-03 03:59:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:54,498 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2022-11-03 03:59:54,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2022-11-03 03:59:54,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 03:59:54,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:54,503 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:54,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:59:54,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash -585574988, now seen corresponding path program 1 times [2022-11-03 03:59:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:54,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710250821] [2022-11-03 03:59:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:54,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710250821] [2022-11-03 03:59:54,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710250821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:54,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:54,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005249391] [2022-11-03 03:59:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:54,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:54,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:54,784 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:55,074 INFO L93 Difference]: Finished difference Result 388 states and 506 transitions. [2022-11-03 03:59:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-03 03:59:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:55,089 INFO L225 Difference]: With dead ends: 388 [2022-11-03 03:59:55,090 INFO L226 Difference]: Without dead ends: 241 [2022-11-03 03:59:55,095 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 03:59:55,099 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:55,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:59:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-03 03:59:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-11-03 03:59:55,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-03 03:59:55,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2022-11-03 03:59:55,166 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 72 [2022-11-03 03:59:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:55,168 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2022-11-03 03:59:55,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2022-11-03 03:59:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 03:59:55,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:55,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:55,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:59:55,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:55,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -733935069, now seen corresponding path program 1 times [2022-11-03 03:59:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:55,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561769122] [2022-11-03 03:59:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:55,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:55,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:55,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561769122] [2022-11-03 03:59:55,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561769122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:55,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:55,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:55,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290525716] [2022-11-03 03:59:55,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:55,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:55,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:55,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:55,489 INFO L87 Difference]: Start difference. First operand 241 states and 320 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:55,724 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2022-11-03 03:59:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-03 03:59:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:55,729 INFO L225 Difference]: With dead ends: 517 [2022-11-03 03:59:55,730 INFO L226 Difference]: Without dead ends: 294 [2022-11-03 03:59:55,732 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 03:59:55,740 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 59 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:55,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 558 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:59:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-03 03:59:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 289. [2022-11-03 03:59:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 174 states have internal predecessors, (226), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2022-11-03 03:59:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2022-11-03 03:59:55,806 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 77 [2022-11-03 03:59:55,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:55,809 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2022-11-03 03:59:55,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:59:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2022-11-03 03:59:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 03:59:55,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:55,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:59:55,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1074708616, now seen corresponding path program 1 times [2022-11-03 03:59:55,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:55,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363853116] [2022-11-03 03:59:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:55,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:56,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:56,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363853116] [2022-11-03 03:59:56,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363853116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:59:56,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296861886] [2022-11-03 03:59:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:56,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:56,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:56,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:56,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:59:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:56,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:59:56,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:56,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:59:56,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296861886] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:56,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1613668163] [2022-11-03 03:59:56,994 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-03 03:59:56,994 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:59:57,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:59:57,009 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:59:57,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:00:42,819 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 04:00:43,321 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-03 04:00:46,227 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-03 04:00:46,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 04:00:46,864 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-11-03 04:00:50,961 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-11-03 04:00:51,004 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-11-03 04:00:58,044 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-11-03 04:00:58,157 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-11-03 04:00:58,222 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-03 04:01:04,803 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-11-03 04:01:04,890 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:01:37,710 WARN L234 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 468 DAG size of output: 277 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:01:54,449 WARN L234 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 502 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:05,387 WARN L234 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:33,200 WARN L234 SmtUtils]: Spent 26.17s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:38,960 WARN L234 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 565 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:45,228 WARN L234 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 567 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:51,394 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 563 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:07,100 WARN L234 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 477 DAG size of output: 283 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:17,977 WARN L234 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 499 DAG size of output: 289 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:02,805 WARN L234 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 475 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:09,662 WARN L234 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 477 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:26,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1613668163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:26,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:04:26,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-03 04:04:26,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017216013] [2022-11-03 04:04:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:26,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-03 04:04:26,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-03 04:04:26,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3272, Unknown=0, NotChecked=0, Total=3422 [2022-11-03 04:04:26,181 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 04:04:43,157 WARN L234 SmtUtils]: Spent 12.88s on a formula simplification. DAG size of input: 479 DAG size of output: 438 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:50,391 WARN L234 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 509 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:57,628 WARN L234 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 511 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:04,749 WARN L234 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 507 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:11,943 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 517 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:23,208 WARN L234 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 577 DAG size of output: 429 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:35,116 WARN L234 SmtUtils]: Spent 10.35s on a formula simplification. DAG size of input: 590 DAG size of output: 429 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:06:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:35,167 INFO L93 Difference]: Finished difference Result 724 states and 1076 transitions. [2022-11-03 04:06:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-03 04:06:35,167 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-11-03 04:06:35,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:35,172 INFO L225 Difference]: With dead ends: 724 [2022-11-03 04:06:35,172 INFO L226 Difference]: Without dead ends: 453 [2022-11-03 04:06:35,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 285.3s TimeCoverageRelationStatistics Valid=243, Invalid=5013, Unknown=0, NotChecked=0, Total=5256 [2022-11-03 04:06:35,178 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 244 mSDsluCounter, 8330 mSDsCounter, 0 mSdLazyCounter, 10024 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 10067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 10024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:35,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 8366 Invalid, 10067 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [43 Valid, 10024 Invalid, 0 Unknown, 0 Unchecked, 44.0s Time] [2022-11-03 04:06:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-03 04:06:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 372. [2022-11-03 04:06:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 236 states have (on average 1.3389830508474576) internal successors, (316), 240 states have internal predecessors, (316), 99 states have call successors, (99), 39 states have call predecessors, (99), 36 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-03 04:06:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 513 transitions. [2022-11-03 04:06:35,352 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 513 transitions. Word has length 78 [2022-11-03 04:06:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:35,353 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 513 transitions. [2022-11-03 04:06:35,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 04:06:35,354 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 513 transitions. [2022-11-03 04:06:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:06:35,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:35,356 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:35,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 04:06:35,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:35,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:35,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:35,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1653731716, now seen corresponding path program 1 times [2022-11-03 04:06:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:35,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8960618] [2022-11-03 04:06:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:35,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:06:35,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:35,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8960618] [2022-11-03 04:06:35,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8960618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:35,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:35,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63564928] [2022-11-03 04:06:35,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:35,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:35,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:35,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:35,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:35,722 INFO L87 Difference]: Start difference. First operand 372 states and 513 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:06:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:36,110 INFO L93 Difference]: Finished difference Result 821 states and 1167 transitions. [2022-11-03 04:06:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-11-03 04:06:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:36,117 INFO L225 Difference]: With dead ends: 821 [2022-11-03 04:06:36,117 INFO L226 Difference]: Without dead ends: 496 [2022-11-03 04:06:36,119 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 04:06:36,120 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 57 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:36,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 575 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:06:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-03 04:06:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 489. [2022-11-03 04:06:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 322 states have (on average 1.3944099378881987) internal successors, (449), 326 states have internal predecessors, (449), 130 states have call successors, (130), 39 states have call predecessors, (130), 36 states have return successors, (129), 125 states have call predecessors, (129), 129 states have call successors, (129) [2022-11-03 04:06:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 708 transitions. [2022-11-03 04:06:36,338 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 708 transitions. Word has length 83 [2022-11-03 04:06:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:36,338 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 708 transitions. [2022-11-03 04:06:36,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:06:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 708 transitions. [2022-11-03 04:06:36,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 04:06:36,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:36,342 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:36,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:06:36,342 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1393507940, now seen corresponding path program 1 times [2022-11-03 04:06:36,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:36,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668438720] [2022-11-03 04:06:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:36,530 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 04:06:36,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:36,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668438720] [2022-11-03 04:06:36,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668438720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:36,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479269869] [2022-11-03 04:06:36,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:36,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:36,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:36,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:36,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:06:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:36,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:06:36,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:36,908 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 04:06:36,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:36,986 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 04:06:36,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479269869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:36,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [624931770] [2022-11-03 04:06:36,990 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-03 04:06:36,990 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:06:36,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:06:36,991 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:06:36,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:07:24,188 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:07:24,508 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-03 04:07:24,817 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:07:38,185 WARN L234 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 444 DAG size of output: 243 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:07:44,109 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:22,016 WARN L234 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:40,587 WARN L234 SmtUtils]: Spent 18.22s on a formula simplification. DAG size of input: 583 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:08:56,491 WARN L234 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 553 DAG size of output: 382 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:05,437 WARN L234 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 584 DAG size of output: 365 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:05,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [624931770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:05,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:05,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 04:09:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299694503] [2022-11-03 04:09:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:05,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 04:09:05,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 04:09:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:09:05,651 INFO L87 Difference]: Start difference. First operand 489 states and 708 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-03 04:09:20,345 WARN L234 SmtUtils]: Spent 13.29s on a formula simplification. DAG size of input: 508 DAG size of output: 402 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:26,042 WARN L234 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 513 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:31,839 WARN L234 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 519 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:37,582 WARN L234 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 515 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:43,488 WARN L234 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 521 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:49,358 WARN L234 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 517 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:55,363 WARN L234 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 522 DAG size of output: 358 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:07,531 INFO L93 Difference]: Finished difference Result 937 states and 1399 transitions. [2022-11-03 04:10:07,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 04:10:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-11-03 04:10:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:07,547 INFO L225 Difference]: With dead ends: 937 [2022-11-03 04:10:07,547 INFO L226 Difference]: Without dead ends: 566 [2022-11-03 04:10:07,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 153.6s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 04:10:07,550 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 159 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:07,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3983 Invalid, 2136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-03 04:10:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-11-03 04:10:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 501. [2022-11-03 04:10:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 332 states have (on average 1.394578313253012) internal successors, (463), 336 states have internal predecessors, (463), 131 states have call successors, (131), 40 states have call predecessors, (131), 37 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-03 04:10:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 724 transitions. [2022-11-03 04:10:07,886 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 724 transitions. Word has length 84 [2022-11-03 04:10:07,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:07,886 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 724 transitions. [2022-11-03 04:10:07,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-03 04:10:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 724 transitions. [2022-11-03 04:10:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 04:10:07,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:07,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:07,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:08,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:10:08,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:08,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:08,115 INFO L85 PathProgramCache]: Analyzing trace with hash 61968666, now seen corresponding path program 1 times [2022-11-03 04:10:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:08,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026339872] [2022-11-03 04:10:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:10:08,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:08,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026339872] [2022-11-03 04:10:08,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026339872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:08,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319566441] [2022-11-03 04:10:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:08,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:08,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a984be1-f8a3-4c56-a88d-e4e1121a087a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:10:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:08,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:08,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:10:08,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 04:10:08,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319566441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:10:08,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1345010227] [2022-11-03 04:10:08,843 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-03 04:10:08,843 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:10:08,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:10:08,844 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:10:08,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:10:52,070 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:10:52,391 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-03 04:10:52,459 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 422 for LOIs [2022-11-03 04:10:52,928 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-11-03 04:10:52,997 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 04:10:53,350 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:11:07,121 WARN L234 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 444 DAG size of output: 243 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:13,242 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:51,181 WARN L234 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:07,309 WARN L234 SmtUtils]: Spent 15.70s on a formula simplification. DAG size of input: 623 DAG size of output: 436 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:23,191 WARN L234 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 533 DAG size of output: 315 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)