./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/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_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/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_e424652b-fecf-4282-b501-bd1d297be3d8/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 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 --- 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 04:11:25,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:11:25,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:11:25,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:11:25,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:11:25,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:11:25,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:11:25,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:11:25,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:11:25,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:11:25,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:11:25,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:11:25,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:11:25,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:11:25,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:11:25,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:11:25,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:11:25,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:11:25,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:11:25,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:11:25,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:11:25,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:11:25,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:11:25,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:11:25,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:11:25,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:11:25,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:11:25,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:11:25,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:11:25,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:11:25,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:11:25,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:11:25,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:11:25,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:11:25,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:11:25,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:11:25,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:11:25,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:11:25,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:11:25,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:11:25,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:11:25,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:11:25,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:11:25,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:11:25,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:11:25,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:11:25,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:11:25,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:11:25,689 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:11:25,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:11:25,690 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:11:25,690 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:11:25,691 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:11:25,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:11:25,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:11:25,692 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:11:25,692 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:11:25,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:11:25,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:11:25,692 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:11:25,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:11:25,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:11:25,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:11:25,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:11:25,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:11:25,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:11:25,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:11:25,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:11:25,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:11:25,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:11:25,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:11:25,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:11:25,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:11:25,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:11:25,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:25,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:11:25,697 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:11:25,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:11:25,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:11:25,697 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:11:25,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:11:25,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:11:25,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:11:25,698 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_e424652b-fecf-4282-b501-bd1d297be3d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 [2022-11-03 04:11:26,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:11:26,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:11:26,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:11:26,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:11:26,036 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:11:26,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-11-03 04:11:26,105 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/data/750619ba5/8e2e44d8ae7a47e683bcedf1ae54241b/FLAG3a82001db [2022-11-03 04:11:26,758 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:11:26,758 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-11-03 04:11:26,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/data/750619ba5/8e2e44d8ae7a47e683bcedf1ae54241b/FLAG3a82001db [2022-11-03 04:11:26,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/data/750619ba5/8e2e44d8ae7a47e683bcedf1ae54241b [2022-11-03 04:11:26,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:11:26,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:11:27,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:27,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:11:27,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:11:27,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:26" (1/1) ... [2022-11-03 04:11:27,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7981ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:27, skipping insertion in model container [2022-11-03 04:11:27,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:26" (1/1) ... [2022-11-03 04:11:27,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:11:27,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:11:27,827 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_e424652b-fecf-4282-b501-bd1d297be3d8/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-11-03 04:11:27,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:27,846 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:11:27,989 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_e424652b-fecf-4282-b501-bd1d297be3d8/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-11-03 04:11:27,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:28,017 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:11:28,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28 WrapperNode [2022-11-03 04:11:28,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:28,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:28,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:11:28,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:11:28,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,105 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1086 [2022-11-03 04:11:28,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:28,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:11:28,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:11:28,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:11:28,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,152 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:11:28,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:11:28,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:11:28,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:11:28,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:28,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:28,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:11:28,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:11:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 04:11:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 04:11:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 04:11:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 04:11:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 04:11:28,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 04:11:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 04:11:28,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 04:11:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 04:11:28,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 04:11:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 04:11:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 04:11:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 04:11:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 04:11:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 04:11:28,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 04:11:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 04:11:28,283 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 04:11:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 04:11:28,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 04:11:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 04:11:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 04:11:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 04:11:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 04:11:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 04:11:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 04:11:28,285 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 04:11:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 04:11:28,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 04:11:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:11:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 04:11:28,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 04:11:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 04:11:28,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 04:11:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 04:11:28,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 04:11:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 04:11:28,289 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 04:11:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 04:11:28,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 04:11:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 04:11:28,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 04:11:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 04:11:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 04:11:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 04:11:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 04:11:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:11:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 04:11:28,292 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 04:11:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 04:11:28,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 04:11:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:11:28,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:11:28,522 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:11:28,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:11:29,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:11:30,025 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:11:30,026 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:11:30,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:30 BoogieIcfgContainer [2022-11-03 04:11:30,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:11:30,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:11:30,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:11:30,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:11:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:11:26" (1/3) ... [2022-11-03 04:11:30,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb2107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:30, skipping insertion in model container [2022-11-03 04:11:30,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (2/3) ... [2022-11-03 04:11:30,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb2107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:30, skipping insertion in model container [2022-11-03 04:11:30,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:30" (3/3) ... [2022-11-03 04:11:30,040 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2022-11-03 04:11:30,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:11:30,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:11:30,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:11:30,149 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;@1db8b072, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:11:30,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:11:30,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-03 04:11:30,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 04:11:30,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:30,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:30,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:30,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash 140022297, now seen corresponding path program 1 times [2022-11-03 04:11:30,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:30,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525290430] [2022-11-03 04:11:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:11:30,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:30,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525290430] [2022-11-03 04:11:30,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525290430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:30,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:30,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:11:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194405743] [2022-11-03 04:11:30,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:30,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:11:30,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:11:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:11:30,748 INFO L87 Difference]: Start difference. First operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:11:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:30,917 INFO L93 Difference]: Finished difference Result 310 states and 415 transitions. [2022-11-03 04:11:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:11:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 79 [2022-11-03 04:11:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:30,931 INFO L225 Difference]: With dead ends: 310 [2022-11-03 04:11:30,931 INFO L226 Difference]: Without dead ends: 198 [2022-11-03 04:11:30,935 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 04:11:30,939 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:30,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:11:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-03 04:11:30,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-03 04:11:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 115 states have internal predecessors, (142), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-03 04:11:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-11-03 04:11:30,997 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 79 [2022-11-03 04:11:30,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:30,998 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-11-03 04:11:30,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:11:30,999 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-11-03 04:11:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 04:11:31,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:31,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:31,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:11:31,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:31,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:31,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1975301502, now seen corresponding path program 1 times [2022-11-03 04:11:31,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:31,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760505887] [2022-11-03 04:11:31,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:31,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:11:31,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:31,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760505887] [2022-11-03 04:11:31,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760505887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:31,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:31,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:31,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142299932] [2022-11-03 04:11:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:31,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:31,352 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:11:31,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:31,584 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2022-11-03 04:11:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:31,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 91 [2022-11-03 04:11:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:31,588 INFO L225 Difference]: With dead ends: 306 [2022-11-03 04:11:31,588 INFO L226 Difference]: Without dead ends: 200 [2022-11-03 04:11:31,590 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 04:11:31,591 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:31,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:11:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-03 04:11:31,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-03 04:11:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 117 states have internal predecessors, (144), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-03 04:11:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-11-03 04:11:31,627 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 91 [2022-11-03 04:11:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:31,627 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-11-03 04:11:31,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:11:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-11-03 04:11:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 04:11:31,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:31,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2022-11-03 04:11:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:11:31,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash 17955914, now seen corresponding path program 1 times [2022-11-03 04:11:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229691549] [2022-11-03 04:11:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:31,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:11:31,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229691549] [2022-11-03 04:11:31,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229691549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:31,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:31,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243083708] [2022-11-03 04:11:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:31,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:31,863 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:11:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:32,047 INFO L93 Difference]: Finished difference Result 435 states and 601 transitions. [2022-11-03 04:11:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2022-11-03 04:11:32,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:32,053 INFO L225 Difference]: With dead ends: 435 [2022-11-03 04:11:32,053 INFO L226 Difference]: Without dead ends: 253 [2022-11-03 04:11:32,057 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 04:11:32,065 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 59 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:32,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 465 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:11:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-03 04:11:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 248. [2022-11-03 04:11:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 151 states have internal predecessors, (199), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 04:11:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 350 transitions. [2022-11-03 04:11:32,109 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 350 transitions. Word has length 96 [2022-11-03 04:11:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:32,111 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 350 transitions. [2022-11-03 04:11:32,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:11:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 350 transitions. [2022-11-03 04:11:32,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 04:11:32,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:32,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1] [2022-11-03 04:11:32,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:11:32,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:32,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1017486290, now seen corresponding path program 1 times [2022-11-03 04:11:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:32,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395780101] [2022-11-03 04:11:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:32,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:11:32,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395780101] [2022-11-03 04:11:32,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395780101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222032946] [2022-11-03 04:11:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:32,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:32,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:11:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:32,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:11:32,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:11:32,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:32,981 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:11:32,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222032946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:11:32,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1641363201] [2022-11-03 04:11:33,006 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2022-11-03 04:11:33,006 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:11:33,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:11:33,020 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:11:33,020 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:12:13,782 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 04:12:14,210 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 04:12:14,583 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:12:27,286 WARN L234 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:32,850 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:54,979 WARN L234 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 486 DAG size of output: 298 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:00,358 WARN L234 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 498 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:08,076 WARN L234 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:31,609 WARN L234 SmtUtils]: Spent 22.19s on a formula simplification. DAG size of input: 592 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:55,477 WARN L234 SmtUtils]: Spent 22.28s on a formula simplification. DAG size of input: 594 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:10,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1641363201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:10,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:14:10,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 04:14:10,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327781612] [2022-11-03 04:14:10,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:10,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 04:14:10,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:14:10,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 04:14:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:14:10,306 INFO L87 Difference]: Start difference. First operand 248 states and 350 transitions. Second operand has 21 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 04:14:21,432 WARN L234 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 519 DAG size of output: 426 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:31,272 WARN L234 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 519 DAG size of output: 434 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:42,086 WARN L234 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 586 DAG size of output: 439 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:52,968 WARN L234 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 584 DAG size of output: 435 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:03,148 WARN L234 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 584 DAG size of output: 443 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:22,132 WARN L234 SmtUtils]: Spent 18.52s on a formula simplification. DAG size of input: 583 DAG size of output: 462 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:28,234 INFO L93 Difference]: Finished difference Result 547 states and 807 transitions. [2022-11-03 04:15:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 04:15:28,235 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 97 [2022-11-03 04:15:28,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:28,238 INFO L225 Difference]: With dead ends: 547 [2022-11-03 04:15:28,238 INFO L226 Difference]: Without dead ends: 317 [2022-11-03 04:15:28,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 185.3s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2022-11-03 04:15:28,241 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 134 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:28,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 3387 Invalid, 1874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 04:15:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-11-03 04:15:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 276. [2022-11-03 04:15:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.367816091954023) internal successors, (238), 178 states have internal predecessors, (238), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-03 04:15:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 389 transitions. [2022-11-03 04:15:28,362 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 389 transitions. Word has length 97 [2022-11-03 04:15:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:28,363 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 389 transitions. [2022-11-03 04:15:28,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 04:15:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 389 transitions. [2022-11-03 04:15:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 04:15:28,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:28,370 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:28,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:28,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:28,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:28,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash -45769855, now seen corresponding path program 1 times [2022-11-03 04:15:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:28,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287248442] [2022-11-03 04:15:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:28,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 04:15:28,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:28,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287248442] [2022-11-03 04:15:28,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287248442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:15:28,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058851017] [2022-11-03 04:15:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:28,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:28,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:28,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:15:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:29,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:15:29,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 04:15:29,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 04:15:29,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058851017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:15:29,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [121802197] [2022-11-03 04:15:29,273 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-03 04:15:29,273 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:15:29,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:15:29,274 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:15:29,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:16:21,768 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 04:16:22,080 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 04:16:22,395 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:16:34,738 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:16:40,249 WARN L234 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:03,782 WARN L234 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 486 DAG size of output: 298 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:09,143 WARN L234 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 498 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:16,817 WARN L234 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:40,100 WARN L234 SmtUtils]: Spent 21.94s on a formula simplification. DAG size of input: 589 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:57,889 WARN L234 SmtUtils]: Spent 16.18s on a formula simplification. DAG size of input: 591 DAG size of output: 331 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:03,477 WARN L234 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 564 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:09,002 WARN L234 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 560 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:26,549 WARN L234 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 568 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:33,263 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 570 DAG size of output: 358 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:39,841 WARN L234 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 580 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:39,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [121802197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:18:39,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:18:39,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 04:18:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604248037] [2022-11-03 04:18:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:18:39,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 04:18:39,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:18:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 04:18:39,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:18:39,851 INFO L87 Difference]: Start difference. First operand 276 states and 389 transitions. Second operand has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-03 04:19:01,542 WARN L234 SmtUtils]: Spent 20.21s on a formula simplification. DAG size of input: 511 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:08,688 WARN L234 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 443 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:43,797 WARN L234 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 574 DAG size of output: 425 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:50,437 WARN L234 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 351 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:19:56,585 INFO L93 Difference]: Finished difference Result 603 states and 888 transitions. [2022-11-03 04:19:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 04:19:56,586 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 103 [2022-11-03 04:19:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:19:56,589 INFO L225 Difference]: With dead ends: 603 [2022-11-03 04:19:56,589 INFO L226 Difference]: Without dead ends: 373 [2022-11-03 04:19:56,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 204.9s TimeCoverageRelationStatistics Valid=208, Invalid=1352, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:19:56,591 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 183 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:19:56,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 3599 Invalid, 2220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-03 04:19:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-03 04:19:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 290. [2022-11-03 04:19:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 186 states have (on average 1.3709677419354838) internal successors, (255), 190 states have internal predecessors, (255), 77 states have call successors, (77), 26 states have call predecessors, (77), 26 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 04:19:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 408 transitions. [2022-11-03 04:19:56,788 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 408 transitions. Word has length 103 [2022-11-03 04:19:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:19:56,788 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 408 transitions. [2022-11-03 04:19:56,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-11-03 04:19:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 408 transitions. [2022-11-03 04:19:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 04:19:56,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:19:56,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:19:56,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:19:56,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:19:56,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:19:57,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:19:57,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1370544522, now seen corresponding path program 1 times [2022-11-03 04:19:57,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:19:57,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383511269] [2022-11-03 04:19:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:19:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:19:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:19:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:19:57,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:19:57,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383511269] [2022-11-03 04:19:57,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383511269] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:19:57,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579121748] [2022-11-03 04:19:57,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:19:57,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:19:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:19:57,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:19:57,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:19:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:19:57,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:19:57,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:19:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:19:57,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:19:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:19:57,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579121748] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:19:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1939556630] [2022-11-03 04:19:57,718 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-11-03 04:19:57,719 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:19:57,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:19:57,719 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:19:57,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:20:55,915 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 04:20:56,232 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 240 for LOIs [2022-11-03 04:20:56,304 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 255 for LOIs [2022-11-03 04:20:56,379 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 449 for LOIs [2022-11-03 04:20:56,725 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 04:20:57,034 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:21:09,716 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:21:15,576 WARN L234 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:21:37,495 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 486 DAG size of output: 298 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:21:42,838 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 498 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:21:50,458 WARN L234 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:22:08,501 WARN L234 SmtUtils]: Spent 17.67s on a formula simplification. DAG size of input: 619 DAG size of output: 476 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:22:20,664 WARN L234 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 568 DAG size of output: 380 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:22:27,779 WARN L234 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 570 DAG size of output: 382 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:22:44,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1939556630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:22:44,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:22:44,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-03 04:22:44,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706889801] [2022-11-03 04:22:44,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:22:44,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 04:22:44,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:22:44,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 04:22:44,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 04:22:44,921 INFO L87 Difference]: Start difference. First operand 290 states and 408 transitions. Second operand has 30 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-03 04:22:54,199 WARN L234 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 547 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:23:12,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:23:12,343 INFO L93 Difference]: Finished difference Result 612 states and 897 transitions. [2022-11-03 04:23:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 04:23:12,344 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 106 [2022-11-03 04:23:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:23:12,347 INFO L225 Difference]: With dead ends: 612 [2022-11-03 04:23:12,347 INFO L226 Difference]: Without dead ends: 382 [2022-11-03 04:23:12,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 285 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 119.8s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 04:23:12,349 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 67 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:23:12,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 4465 Invalid, 3704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2022-11-03 04:23:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-03 04:23:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 326. [2022-11-03 04:23:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 216 states have (on average 1.375) internal successors, (297), 220 states have internal predecessors, (297), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-03 04:23:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 456 transitions. [2022-11-03 04:23:12,555 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 456 transitions. Word has length 106 [2022-11-03 04:23:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:23:12,556 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 456 transitions. [2022-11-03 04:23:12,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-11-03 04:23:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 456 transitions. [2022-11-03 04:23:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 04:23:12,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:23:12,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:23:12,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:23:12,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:23:12,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:23:12,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:23:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1214855107, now seen corresponding path program 1 times [2022-11-03 04:23:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:23:12,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419961072] [2022-11-03 04:23:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:23:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:23:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:23:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:23:12,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:23:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419961072] [2022-11-03 04:23:12,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419961072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:23:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242120882] [2022-11-03 04:23:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:23:12,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:23:12,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:23:12,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:23:12,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e424652b-fecf-4282-b501-bd1d297be3d8/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:23:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:23:13,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:23:13,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:23:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:23:13,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:23:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 04:23:13,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242120882] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:23:13,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1649194341] [2022-11-03 04:23:13,354 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2022-11-03 04:23:13,354 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:23:13,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:23:13,355 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:23:13,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:24:06,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 04:24:06,336 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 255 for LOIs [2022-11-03 04:24:08,043 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 04:24:08,353 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 257 for LOIs [2022-11-03 04:24:09,038 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 04:24:09,082 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-11-03 04:24:09,123 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 227 for LOIs [2022-11-03 04:24:09,160 INFO L180 IcfgInterpreter]: Interpretation finished