./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/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_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/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_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/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 619b5b07f7bee6d460265c38ff6f46d0f3c88b87f6fc28a24021d9529c74e42f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:29:29,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:29:29,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:29:29,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:29:29,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:29:29,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:29:29,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:29:29,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:29:29,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:29:29,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:29:29,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:29:29,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:29:29,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:29:29,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:29:29,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:29:29,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:29:29,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:29:29,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:29:29,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:29:29,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:29:29,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:29:29,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:29:29,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:29:29,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:29:29,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:29:29,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:29:29,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:29:29,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:29:29,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:29:29,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:29:29,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:29:29,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:29:29,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:29:29,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:29:29,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:29:29,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:29:29,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:29:29,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:29:29,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:29:29,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:29:29,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:29:29,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:29:29,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:29:29,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:29:29,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:29:29,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:29:29,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:29:29,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:29:29,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:29:29,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:29:29,297 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:29:29,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:29:29,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:29:29,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:29:29,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:29:29,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:29:29,300 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:29:29,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:29:29,300 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:29:29,300 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:29:29,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:29:29,301 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:29:29,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:29:29,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:29:29,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:29:29,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:29:29,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:29:29,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:29:29,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:29:29,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:29:29,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:29:29,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:29:29,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:29:29,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:29:29,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:29,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:29:29,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:29:29,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:29:29,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:29:29,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:29:29,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:29:29,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:29:29,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:29:29,307 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_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 619b5b07f7bee6d460265c38ff6f46d0f3c88b87f6fc28a24021d9529c74e42f [2022-11-03 03:29:29,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:29:29,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:29:29,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:29:29,613 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:29:29,614 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:29:29,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2022-11-03 03:29:29,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/data/86e377d07/b8b52f2f9cef49a098e7c8467dbebf23/FLAG6ca023962 [2022-11-03 03:29:30,447 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:29:30,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2022-11-03 03:29:30,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/data/86e377d07/b8b52f2f9cef49a098e7c8467dbebf23/FLAG6ca023962 [2022-11-03 03:29:30,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/data/86e377d07/b8b52f2f9cef49a098e7c8467dbebf23 [2022-11-03 03:29:30,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:29:30,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:29:30,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:30,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:29:30,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:29:30,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:30" (1/1) ... [2022-11-03 03:29:30,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694ec0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:30, skipping insertion in model container [2022-11-03 03:29:30,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:30" (1/1) ... [2022-11-03 03:29:30,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:29:30,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:29:31,129 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_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c[8467,8480] [2022-11-03 03:29:31,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:31,433 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:29:31,471 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_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c[8467,8480] [2022-11-03 03:29:31,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:31,584 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:29:31,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31 WrapperNode [2022-11-03 03:29:31,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:31,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:31,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:29:31,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:29:31,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,732 INFO L138 Inliner]: procedures = 128, calls = 208, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 854 [2022-11-03 03:29:31,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:31,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:29:31,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:29:31,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:29:31,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:29:31,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:29:31,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:29:31,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:29:31,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (1/1) ... [2022-11-03 03:29:31,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:31,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:31,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:29:31,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:29:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:29:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:29:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:29:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:29:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:29:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:29:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:29:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:29:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:29:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:29:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:29:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:29:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:29:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:29:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:29:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:29:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:29:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:29:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:29:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:29:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:29:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:29:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:29:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:29:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:29:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:29:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:29:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:29:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:29:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:29:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:29:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:29:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:29:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:29:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:29:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:29:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:29:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:29:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:29:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:29:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:29:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:29:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:29:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:29:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:29:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:29:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:29:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:29:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:29:32,236 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:29:32,242 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:29:33,196 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:29:33,646 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:29:33,647 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:29:33,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:29:33 BoogieIcfgContainer [2022-11-03 03:29:33,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:29:33,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:29:33,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:29:33,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:29:33,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:29:30" (1/3) ... [2022-11-03 03:29:33,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee7ae55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:29:33, skipping insertion in model container [2022-11-03 03:29:33,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:31" (2/3) ... [2022-11-03 03:29:33,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee7ae55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:29:33, skipping insertion in model container [2022-11-03 03:29:33,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:29:33" (3/3) ... [2022-11-03 03:29:33,660 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2022-11-03 03:29:33,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:29:33,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:29:33,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:29:33,742 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;@5a7a4e9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:29:33,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:29:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-03 03:29:33,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 03:29:33,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:33,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:29:33,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1497005758, now seen corresponding path program 1 times [2022-11-03 03:29:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:33,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187841830] [2022-11-03 03:29:33,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:34,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:34,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187841830] [2022-11-03 03:29:34,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187841830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:34,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:34,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:29:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204453044] [2022-11-03 03:29:34,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:34,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:29:34,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:29:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:29:34,271 INFO L87 Difference]: Start difference. First operand has 180 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 110 states have internal predecessors, (142), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:34,450 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2022-11-03 03:29:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:29:34,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-03 03:29:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:34,464 INFO L225 Difference]: With dead ends: 277 [2022-11-03 03:29:34,464 INFO L226 Difference]: Without dead ends: 177 [2022-11-03 03:29:34,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:29:34,471 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:34,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-03 03:29:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-03 03:29:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 03:29:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2022-11-03 03:29:34,530 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 65 [2022-11-03 03:29:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:34,532 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-11-03 03:29:34,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2022-11-03 03:29:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 03:29:34,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:34,536 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:29:34,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:29:34,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1710795677, now seen corresponding path program 1 times [2022-11-03 03:29:34,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:34,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941660690] [2022-11-03 03:29:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:34,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:34,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941660690] [2022-11-03 03:29:34,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941660690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:34,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:34,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:34,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95974658] [2022-11-03 03:29:34,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:34,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:34,871 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:34,996 INFO L93 Difference]: Finished difference Result 273 states and 350 transitions. [2022-11-03 03:29:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:34,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-11-03 03:29:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:34,999 INFO L225 Difference]: With dead ends: 273 [2022-11-03 03:29:35,000 INFO L226 Difference]: Without dead ends: 179 [2022-11-03 03:29:35,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:35,003 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-03 03:29:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-03 03:29:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 03:29:35,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2022-11-03 03:29:35,031 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 237 transitions. Word has length 66 [2022-11-03 03:29:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:35,032 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 237 transitions. [2022-11-03 03:29:35,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:35,032 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 237 transitions. [2022-11-03 03:29:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 03:29:35,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:35,034 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] [2022-11-03 03:29:35,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:29:35,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:35,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:35,035 INFO L85 PathProgramCache]: Analyzing trace with hash -476120089, now seen corresponding path program 1 times [2022-11-03 03:29:35,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:35,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840199945] [2022-11-03 03:29:35,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:35,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:35,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840199945] [2022-11-03 03:29:35,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840199945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:35,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:35,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356119769] [2022-11-03 03:29:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:35,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:35,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:35,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:35,241 INFO L87 Difference]: Start difference. First operand 179 states and 237 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:35,402 INFO L93 Difference]: Finished difference Result 388 states and 533 transitions. [2022-11-03 03:29:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2022-11-03 03:29:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:35,406 INFO L225 Difference]: With dead ends: 388 [2022-11-03 03:29:35,406 INFO L226 Difference]: Without dead ends: 227 [2022-11-03 03:29:35,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:35,410 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 57 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:35,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 427 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:35,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-03 03:29:35,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2022-11-03 03:29:35,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 141 states have internal predecessors, (191), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 03:29:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2022-11-03 03:29:35,434 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 71 [2022-11-03 03:29:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:35,434 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2022-11-03 03:29:35,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:29:35,435 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2022-11-03 03:29:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 03:29:35,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:35,437 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] [2022-11-03 03:29:35,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:29:35,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:35,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:35,439 INFO L85 PathProgramCache]: Analyzing trace with hash -541380994, now seen corresponding path program 1 times [2022-11-03 03:29:35,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:35,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721109383] [2022-11-03 03:29:35,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:35,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:35,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721109383] [2022-11-03 03:29:35,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721109383] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:29:35,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595616953] [2022-11-03 03:29:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:29:35,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:35,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:29:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:29:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:36,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:29:36,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:36,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:36,379 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:29:36,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595616953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:36,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1480549203] [2022-11-03 03:29:36,408 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-03 03:29:36,408 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:29:36,412 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:29:36,418 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:29:36,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:30:08,221 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:30:08,561 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:30:08,914 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:30:48,440 WARN L234 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 492 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:30:56,136 WARN L234 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 504 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:31:18,590 WARN L234 SmtUtils]: Spent 15.80s on a formula simplification. DAG size of input: 577 DAG size of output: 381 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:31:30,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1480549203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:30,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:31:30,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 03:31:30,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226193665] [2022-11-03 03:31:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:30,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 03:31:30,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:30,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 03:31:30,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:31:30,740 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-03 03:31:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:38,145 INFO L93 Difference]: Finished difference Result 523 states and 785 transitions. [2022-11-03 03:31:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:38,146 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2022-11-03 03:31:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:38,149 INFO L225 Difference]: With dead ends: 523 [2022-11-03 03:31:38,149 INFO L226 Difference]: Without dead ends: 319 [2022-11-03 03:31:38,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 81.8s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:31:38,151 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 166 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:38,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 3186 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 03:31:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-03 03:31:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 245. [2022-11-03 03:31:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 160 states have (on average 1.4) internal successors, (224), 163 states have internal predecessors, (224), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 03:31:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 345 transitions. [2022-11-03 03:31:38,277 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 345 transitions. Word has length 72 [2022-11-03 03:31:38,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:38,279 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 345 transitions. [2022-11-03 03:31:38,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-03 03:31:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 345 transitions. [2022-11-03 03:31:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 03:31:38,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:38,288 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 03:31:38,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:38,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:38,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1923209114, now seen corresponding path program 1 times [2022-11-03 03:31:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509420969] [2022-11-03 03:31:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:31:38,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:38,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509420969] [2022-11-03 03:31:38,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509420969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:38,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:38,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:31:38,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812700767] [2022-11-03 03:31:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:38,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:31:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:31:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:31:38,613 INFO L87 Difference]: Start difference. First operand 245 states and 345 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:31:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:38,866 INFO L93 Difference]: Finished difference Result 583 states and 854 transitions. [2022-11-03 03:31:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:31:38,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-03 03:31:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:38,871 INFO L225 Difference]: With dead ends: 583 [2022-11-03 03:31:38,871 INFO L226 Difference]: Without dead ends: 362 [2022-11-03 03:31:38,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:31:38,875 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 55 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:38,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 430 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:31:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-03 03:31:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2022-11-03 03:31:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 247 states have (on average 1.45748987854251) internal successors, (360), 250 states have internal predecessors, (360), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-03 03:31:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 531 transitions. [2022-11-03 03:31:39,080 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 531 transitions. Word has length 77 [2022-11-03 03:31:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:39,081 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 531 transitions. [2022-11-03 03:31:39,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:31:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 531 transitions. [2022-11-03 03:31:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 03:31:39,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:39,092 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 03:31:39,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:31:39,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash 382732724, now seen corresponding path program 1 times [2022-11-03 03:31:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:39,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658465288] [2022-11-03 03:31:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:39,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:31:39,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:39,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658465288] [2022-11-03 03:31:39,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658465288] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:31:39,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887869046] [2022-11-03 03:31:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:39,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:39,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:39,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:31:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:39,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:31:39,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:31:39,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:31:39,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887869046] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:39,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2023266493] [2022-11-03 03:31:39,624 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-03 03:31:39,624 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:39,625 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:39,625 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:39,625 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:29,290 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:32:29,581 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-11-03 03:32:29,898 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:32:50,207 WARN L234 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 450 DAG size of output: 245 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:32:55,942 WARN L234 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 473 DAG size of output: 265 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:33:12,541 WARN L234 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 492 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:33:20,156 WARN L234 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 504 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:33:46,615 WARN L234 SmtUtils]: Spent 19.71s on a formula simplification. DAG size of input: 583 DAG size of output: 458 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:34:08,838 WARN L234 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 553 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:34:16,622 WARN L234 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 584 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:34:16,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2023266493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:16,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:34:16,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-03 03:34:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694816170] [2022-11-03 03:34:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:16,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 03:34:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:16,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 03:34:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:34:16,632 INFO L87 Difference]: Start difference. First operand 357 states and 531 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-03 03:34:37,160 WARN L234 SmtUtils]: Spent 18.80s on a formula simplification. DAG size of input: 560 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:35:02,070 WARN L234 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 582 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:35:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:12,580 INFO L93 Difference]: Finished difference Result 798 states and 1243 transitions. [2022-11-03 03:35:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 03:35:12,581 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 78 [2022-11-03 03:35:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:12,585 INFO L225 Difference]: With dead ends: 798 [2022-11-03 03:35:12,585 INFO L226 Difference]: Without dead ends: 504 [2022-11-03 03:35:12,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 151.4s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 03:35:12,588 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 192 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:12,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 3268 Invalid, 2358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-11-03 03:35:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-03 03:35:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 418. [2022-11-03 03:35:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 304 states have (on average 1.5032894736842106) internal successors, (457), 309 states have internal predecessors, (457), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2022-11-03 03:35:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 634 transitions. [2022-11-03 03:35:12,808 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 634 transitions. Word has length 78 [2022-11-03 03:35:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:12,809 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 634 transitions. [2022-11-03 03:35:12,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-03 03:35:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 634 transitions. [2022-11-03 03:35:12,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 03:35:12,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:12,812 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, 1, 1] [2022-11-03 03:35:12,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:35:13,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:35:13,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:13,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1102508828, now seen corresponding path program 1 times [2022-11-03 03:35:13,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:13,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123633666] [2022-11-03 03:35:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:13,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123633666] [2022-11-03 03:35:13,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123633666] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:35:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885927696] [2022-11-03 03:35:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:13,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:35:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:35:13,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:35:13,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:35:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:13,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:35:13,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:35:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:13,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:35:13,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:13,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885927696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:35:13,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [378242066] [2022-11-03 03:35:13,758 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-03 03:35:13,759 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:35:13,759 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:35:13,760 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:35:13,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:36:17,074 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:36:17,447 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-03 03:36:17,510 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-11-03 03:36:17,618 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 449 for LOIs [2022-11-03 03:36:17,995 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:36:18,357 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:36:58,277 WARN L234 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 492 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:06,003 WARN L234 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 504 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:12,509 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 514 DAG size of output: 294 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:31,005 WARN L234 SmtUtils]: Spent 18.12s on a formula simplification. DAG size of input: 623 DAG size of output: 458 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:54,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [378242066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:54,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:37:54,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-03 03:37:54,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326057542] [2022-11-03 03:37:54,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:54,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 03:37:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 03:37:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 03:37:54,851 INFO L87 Difference]: Start difference. First operand 418 states and 634 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-03 03:38:01,771 WARN L234 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 522 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:16,653 INFO L93 Difference]: Finished difference Result 919 states and 1449 transitions. [2022-11-03 03:38:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 03:38:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 81 [2022-11-03 03:38:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:16,661 INFO L225 Difference]: With dead ends: 919 [2022-11-03 03:38:16,661 INFO L226 Difference]: Without dead ends: 625 [2022-11-03 03:38:16,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 104.8s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 03:38:16,664 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 203 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 3145 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:16,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 3572 Invalid, 3161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3145 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-03 03:38:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-11-03 03:38:17,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 549. [2022-11-03 03:38:17,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 427 states have (on average 1.5550351288056206) internal successors, (664), 434 states have internal predecessors, (664), 94 states have call successors, (94), 27 states have call predecessors, (94), 27 states have return successors, (93), 89 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-03 03:38:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 851 transitions. [2022-11-03 03:38:17,090 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 851 transitions. Word has length 81 [2022-11-03 03:38:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:17,090 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 851 transitions. [2022-11-03 03:38:17,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-03 03:38:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 851 transitions. [2022-11-03 03:38:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 03:38:17,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:17,093 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, 1] [2022-11-03 03:38:17,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:38:17,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:38:17,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1420628927, now seen corresponding path program 1 times [2022-11-03 03:38:17,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:17,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663589484] [2022-11-03 03:38:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:38:17,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:17,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663589484] [2022-11-03 03:38:17,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663589484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:38:17,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736442354] [2022-11-03 03:38:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:17,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:38:17,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:38:17,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:38:17,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bafa4e-328b-4f3a-badc-8b7c969ba2d1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:38:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:17,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:38:17,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:38:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:38:17,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:38:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:38:17,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736442354] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:38:17,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [581040470] [2022-11-03 03:38:17,869 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-03 03:38:17,870 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:38:17,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:38:17,871 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:38:17,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:39:09,781 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:39:10,106 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:39:10,441 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-11-03 03:39:22,807 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-03 03:39:49,450 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 443 for LOIs [2022-11-03 03:39:49,729 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-11-03 03:39:49,799 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-11-03 03:39:49,842 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-11-03 03:39:50,613 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 247 for LOIs [2022-11-03 03:39:50,654 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:40:00,389 WARN L234 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 606 DAG size of output: 460 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:14,475 WARN L234 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:21,013 WARN L234 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:35,230 WARN L234 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 470 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:47,973 WARN L234 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 492 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:55,991 WARN L234 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 504 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:02,537 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 514 DAG size of output: 294 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:09,208 WARN L234 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 566 DAG size of output: 338 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:15,816 WARN L234 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 568 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:21,888 WARN L234 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 570 DAG size of output: 336 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:27,902 WARN L234 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 568 DAG size of output: 334 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:34,155 WARN L234 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 576 DAG size of output: 341 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:40,173 WARN L234 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 574 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:45,996 WARN L234 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 577 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:51,664 WARN L234 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 575 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:57,599 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 577 DAG size of output: 334 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:03,680 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 575 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:09,368 WARN L234 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 577 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:15,289 WARN L234 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 575 DAG size of output: 331 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)