./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS --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 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d --- 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-8393723 [2022-11-19 08:25:05,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:25:05,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:25:05,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:25:05,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:25:05,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:25:05,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:25:05,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:25:05,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:25:05,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:25:05,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:25:05,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:25:05,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:25:05,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:25:05,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:25:05,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:25:05,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:25:05,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:25:05,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:25:05,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:25:05,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:25:05,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:25:05,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:25:05,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:25:05,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:25:05,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:25:05,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:25:05,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:25:05,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:25:05,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:25:05,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:25:05,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:25:05,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:25:05,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:25:05,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:25:05,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:25:05,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:25:05,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:25:05,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:25:05,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:25:05,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:25:05,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:25:05,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:25:05,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:25:05,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:25:05,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:25:05,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:25:05,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:25:05,350 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:25:05,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:25:05,350 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:25:05,351 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:25:05,351 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:25:05,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:25:05,352 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:25:05,352 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:25:05,352 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:25:05,353 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:25:05,353 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:25:05,353 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:25:05,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:25:05,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:25:05,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:25:05,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:25:05,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:25:05,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:25:05,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:25:05,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:25:05,357 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:25:05,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:25:05,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:25:05,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:25:05,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:25:05,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:25:05,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:05,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:25:05,360 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:25:05,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:25:05,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:25:05,361 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:25:05,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:25:05,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:25:05,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:25:05,362 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_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d [2022-11-19 08:25:05,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:25:05,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:25:05,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:25:05,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:25:05,687 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:25:05,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2022-11-19 08:25:05,753 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/data/ed64ffea6/8633ad7a5c51477babba9367058bd4b5/FLAG8a88a2479 [2022-11-19 08:25:06,342 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:25:06,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2022-11-19 08:25:06,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/data/ed64ffea6/8633ad7a5c51477babba9367058bd4b5/FLAG8a88a2479 [2022-11-19 08:25:06,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/data/ed64ffea6/8633ad7a5c51477babba9367058bd4b5 [2022-11-19 08:25:06,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:25:06,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:25:06,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:06,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:25:06,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:25:06,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:06" (1/1) ... [2022-11-19 08:25:06,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3453750f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:06, skipping insertion in model container [2022-11-19 08:25:06,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:06" (1/1) ... [2022-11-19 08:25:06,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:25:06,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:25:07,332 WARN L234 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_26080eda-cc00-4fe2-9065-43ac0a279b53/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2022-11-19 08:25:07,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:07,483 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:25:07,565 WARN L234 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_26080eda-cc00-4fe2-9065-43ac0a279b53/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2022-11-19 08:25:07,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:07,636 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:25:07,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07 WrapperNode [2022-11-19 08:25:07,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:07,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:07,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:25:07,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:25:07,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,731 INFO L138 Inliner]: procedures = 128, calls = 206, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1017 [2022-11-19 08:25:07,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:07,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:25:07,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:25:07,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:25:07,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:25:07,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:25:07,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:25:07,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:25:07,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (1/1) ... [2022-11-19 08:25:07,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:07,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:25:07,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:25:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 08:25:07,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 08:25:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 08:25:07,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 08:25:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 08:25:07,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 08:25:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 08:25:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 08:25:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 08:25:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 08:25:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 08:25:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 08:25:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 08:25:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 08:25:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 08:25:07,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 08:25:07,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 08:25:07,928 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-19 08:25:07,928 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-19 08:25:07,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 08:25:07,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 08:25:07,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:25:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 08:25:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 08:25:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 08:25:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 08:25:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 08:25:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 08:25:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 08:25:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 08:25:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 08:25:07,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 08:25:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 08:25:07,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 08:25:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 08:25:07,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 08:25:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:25:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 08:25:07,931 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 08:25:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:25:07,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:25:08,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:25:08,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:25:09,154 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:25:09,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:25:09,638 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:25:09,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:09 BoogieIcfgContainer [2022-11-19 08:25:09,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:25:09,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:25:09,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:25:09,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:25:09,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:25:06" (1/3) ... [2022-11-19 08:25:09,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f44c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:09, skipping insertion in model container [2022-11-19 08:25:09,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:07" (2/3) ... [2022-11-19 08:25:09,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f44c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:25:09, skipping insertion in model container [2022-11-19 08:25:09,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:25:09" (3/3) ... [2022-11-19 08:25:09,653 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2022-11-19 08:25:09,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:25:09,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:25:09,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:25:09,764 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;@57d10019, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:25:09,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:25:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-19 08:25:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 08:25:09,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:09,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:09,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:25:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:09,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1655574185, now seen corresponding path program 1 times [2022-11-19 08:25:09,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:09,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19142400] [2022-11-19 08:25:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:09,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:10,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:10,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19142400] [2022-11-19 08:25:10,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19142400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:10,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:10,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:25:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299494248] [2022-11-19 08:25:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:10,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:25:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:25:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:25:10,208 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:10,398 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2022-11-19 08:25:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:25:10,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-11-19 08:25:10,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:10,422 INFO L225 Difference]: With dead ends: 257 [2022-11-19 08:25:10,422 INFO L226 Difference]: Without dead ends: 167 [2022-11-19 08:25:10,431 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 [2022-11-19 08:25:10,436 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:10,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:25:10,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-19 08:25:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-11-19 08:25:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-19 08:25:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2022-11-19 08:25:10,496 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2022-11-19 08:25:10,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:10,497 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2022-11-19 08:25:10,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:10,498 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2022-11-19 08:25:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:25:10,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:10,501 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:10,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:25:10,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:25:10,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:10,502 INFO L85 PathProgramCache]: Analyzing trace with hash -612352233, now seen corresponding path program 1 times [2022-11-19 08:25:10,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:10,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650841960] [2022-11-19 08:25:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:10,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:10,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:10,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650841960] [2022-11-19 08:25:10,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650841960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:10,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:10,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:25:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917278785] [2022-11-19 08:25:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:25:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:10,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:25:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:25:10,750 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:10,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:10,919 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2022-11-19 08:25:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:25:10,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-19 08:25:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:10,926 INFO L225 Difference]: With dead ends: 253 [2022-11-19 08:25:10,926 INFO L226 Difference]: Without dead ends: 169 [2022-11-19 08:25:10,932 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 [2022-11-19 08:25:10,934 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:10,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:25:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-19 08:25:10,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-19 08:25:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-19 08:25:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2022-11-19 08:25:10,975 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2022-11-19 08:25:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:10,977 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2022-11-19 08:25:10,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2022-11-19 08:25:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 08:25:10,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:10,985 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] [2022-11-19 08:25:10,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:25:10,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:25:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1011097887, now seen corresponding path program 1 times [2022-11-19 08:25:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508815081] [2022-11-19 08:25:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:10,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:11,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:11,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508815081] [2022-11-19 08:25:11,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508815081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:25:11,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:25:11,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:25:11,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650422924] [2022-11-19 08:25:11,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:25:11,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:25:11,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:25:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:25:11,215 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:11,365 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2022-11-19 08:25:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:25:11,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-11-19 08:25:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:11,371 INFO L225 Difference]: With dead ends: 368 [2022-11-19 08:25:11,373 INFO L226 Difference]: Without dead ends: 217 [2022-11-19 08:25:11,376 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 [2022-11-19 08:25:11,381 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:11,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 400 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:25:11,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-19 08:25:11,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2022-11-19 08:25:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-19 08:25:11,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2022-11-19 08:25:11,403 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2022-11-19 08:25:11,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:11,404 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2022-11-19 08:25:11,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:25:11,405 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2022-11-19 08:25:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 08:25:11,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:11,407 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] [2022-11-19 08:25:11,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:25:11,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:25:11,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash -372441609, now seen corresponding path program 1 times [2022-11-19 08:25:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:11,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125357653] [2022-11-19 08:25:11,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:11,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:11,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:11,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125357653] [2022-11-19 08:25:11,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125357653] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:25:11,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162062987] [2022-11-19 08:25:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:11,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:11,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:11,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:11,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:25:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:11,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:25:11,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:12,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:25:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:25:12,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162062987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:25:12,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1172418323] [2022-11-19 08:25:12,206 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 08:25:12,206 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:25:12,210 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:25:12,215 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:25:12,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:25:57,951 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 08:25:58,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:25:58,578 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-11-19 08:26:00,642 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-19 08:26:00,679 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-11-19 08:26:05,257 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-11-19 08:26:05,290 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-19 08:26:07,235 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:26:40,090 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:26:49,042 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 490 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:26:54,695 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:27:09,222 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 567 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:27:21,682 WARN L233 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 564 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:27:29,088 WARN L233 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 570 DAG size of output: 375 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:27:46,188 WARN L233 SmtUtils]: Spent 13.35s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:20,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1172418323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:20,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:28:20,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-11-19 08:28:20,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103468873] [2022-11-19 08:28:20,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:20,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-19 08:28:20,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:20,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-19 08:28:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1868, Unknown=0, NotChecked=0, Total=1980 [2022-11-19 08:28:20,417 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:29:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:21,772 INFO L93 Difference]: Finished difference Result 585 states and 922 transitions. [2022-11-19 08:29:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-19 08:29:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-11-19 08:29:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:21,776 INFO L225 Difference]: With dead ends: 585 [2022-11-19 08:29:21,776 INFO L226 Difference]: Without dead ends: 391 [2022-11-19 08:29:21,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 171.1s TimeCoverageRelationStatistics Valid=195, Invalid=2885, Unknown=0, NotChecked=0, Total=3080 [2022-11-19 08:29:21,779 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 409 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 5604 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 5640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 5604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:21,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 4999 Invalid, 5640 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [36 Valid, 5604 Invalid, 0 Unknown, 0 Unchecked, 22.8s Time] [2022-11-19 08:29:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-19 08:29:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 298. [2022-11-19 08:29:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 208 states have (on average 1.4567307692307692) internal successors, (303), 211 states have internal predecessors, (303), 67 states have call successors, (67), 24 states have call predecessors, (67), 22 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-19 08:29:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 436 transitions. [2022-11-19 08:29:21,956 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 436 transitions. Word has length 63 [2022-11-19 08:29:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:21,956 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 436 transitions. [2022-11-19 08:29:21,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:29:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 436 transitions. [2022-11-19 08:29:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 08:29:21,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:21,959 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:29:21,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:29:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:22,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:29:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1381690992, now seen corresponding path program 1 times [2022-11-19 08:29:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:22,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183232830] [2022-11-19 08:29:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:29:22,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:22,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183232830] [2022-11-19 08:29:22,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183232830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:22,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:29:22,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:29:22,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921598674] [2022-11-19 08:29:22,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:22,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:29:22,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:22,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:29:22,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:29:22,305 INFO L87 Difference]: Start difference. First operand 298 states and 436 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:29:22,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:22,645 INFO L93 Difference]: Finished difference Result 669 states and 1006 transitions. [2022-11-19 08:29:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:29:22,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-11-19 08:29:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:22,649 INFO L225 Difference]: With dead ends: 669 [2022-11-19 08:29:22,649 INFO L226 Difference]: Without dead ends: 413 [2022-11-19 08:29:22,650 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 [2022-11-19 08:29:22,651 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 55 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:22,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 417 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:29:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-19 08:29:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 406. [2022-11-19 08:29:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 291 states have (on average 1.4879725085910653) internal successors, (433), 294 states have internal predecessors, (433), 92 states have call successors, (92), 24 states have call predecessors, (92), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-11-19 08:29:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 616 transitions. [2022-11-19 08:29:22,945 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 616 transitions. Word has length 68 [2022-11-19 08:29:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:22,946 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 616 transitions. [2022-11-19 08:29:22,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:29:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 616 transitions. [2022-11-19 08:29:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 08:29:22,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:22,949 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:29:22,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:29:22,949 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:29:22,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:22,950 INFO L85 PathProgramCache]: Analyzing trace with hash 86599749, now seen corresponding path program 1 times [2022-11-19 08:29:22,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:22,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575951231] [2022-11-19 08:29:22,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:22,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:29:23,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575951231] [2022-11-19 08:29:23,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575951231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:29:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948512562] [2022-11-19 08:29:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:23,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:23,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:29:23,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:29:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:23,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:29:23,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:29:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:29:23,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:29:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 08:29:23,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948512562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:29:23,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1664551301] [2022-11-19 08:29:23,466 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-19 08:29:23,466 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:29:23,467 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:29:23,468 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:29:23,468 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:30:12,090 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 08:30:12,391 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-19 08:30:12,658 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:30:45,143 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:54,040 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 490 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:59,717 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:31:23,147 WARN L233 SmtUtils]: Spent 17.07s on a formula simplification. DAG size of input: 583 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:31:44,134 WARN L233 SmtUtils]: Spent 20.64s on a formula simplification. DAG size of input: 593 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:31:53,143 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 566 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:32:11,731 WARN L233 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 576 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:32:23,982 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 584 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:32:23,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1664551301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:23,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:32:23,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 08:32:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800241119] [2022-11-19 08:32:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:23,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 08:32:23,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 08:32:23,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:32:23,995 INFO L87 Difference]: Start difference. First operand 406 states and 616 transitions. Second operand has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-11-19 08:32:39,208 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification. DAG size of input: 512 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:32:56,926 WARN L233 SmtUtils]: Spent 17.46s on a formula simplification. DAG size of input: 569 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:33:03,952 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 339 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:33:17,770 WARN L233 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 597 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:33:36,511 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 524 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:33:50,494 WARN L233 SmtUtils]: Spent 13.28s on a formula simplification. DAG size of input: 596 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:04,681 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification. DAG size of input: 596 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:34:12,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:12,384 INFO L93 Difference]: Finished difference Result 781 states and 1217 transitions. [2022-11-19 08:34:12,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 08:34:12,386 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2022-11-19 08:34:12,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:12,389 INFO L225 Difference]: With dead ends: 781 [2022-11-19 08:34:12,389 INFO L226 Difference]: Without dead ends: 497 [2022-11-19 08:34:12,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 227.8s TimeCoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 08:34:12,395 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 192 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:12,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 3268 Invalid, 2478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 08:34:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-11-19 08:34:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 434. [2022-11-19 08:34:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 316 states have (on average 1.4841772151898733) internal successors, (469), 320 states have internal predecessors, (469), 94 states have call successors, (94), 25 states have call predecessors, (94), 23 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-19 08:34:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 656 transitions. [2022-11-19 08:34:12,679 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 656 transitions. Word has length 69 [2022-11-19 08:34:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:12,680 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 656 transitions. [2022-11-19 08:34:12,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2022-11-19 08:34:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 656 transitions. [2022-11-19 08:34:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 08:34:12,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:12,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:12,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:34:12,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:34:12,890 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:34:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1610945133, now seen corresponding path program 1 times [2022-11-19 08:34:12,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:12,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855744052] [2022-11-19 08:34:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:34:13,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:13,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855744052] [2022-11-19 08:34:13,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855744052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:34:13,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925280154] [2022-11-19 08:34:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:13,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:34:13,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:34:13,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:34:13,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:34:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:13,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:34:13,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:34:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:34:13,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:34:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:34:13,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925280154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:34:13,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141727855] [2022-11-19 08:34:13,548 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 08:34:13,549 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:34:13,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:34:13,549 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:34:13,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:35:08,284 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 08:35:08,561 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-19 08:35:08,622 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-11-19 08:35:08,936 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:35:09,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-11-19 08:35:09,303 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:35:43,047 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:51,964 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 490 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:35:57,690 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:18,369 WARN L233 SmtUtils]: Spent 14.31s on a formula simplification. DAG size of input: 623 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:29,369 WARN L233 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:41,365 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 531 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:49,662 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 569 DAG size of output: 409 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:58,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1141727855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:58,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:36:58,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-19 08:36:58,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693951521] [2022-11-19 08:36:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:58,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:36:58,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:36:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2022-11-19 08:36:58,147 INFO L87 Difference]: Start difference. First operand 434 states and 656 transitions. Second operand has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-11-19 08:37:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:21,577 INFO L93 Difference]: Finished difference Result 837 states and 1306 transitions. [2022-11-19 08:37:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-19 08:37:21,577 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2022-11-19 08:37:21,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:21,581 INFO L225 Difference]: With dead ends: 837 [2022-11-19 08:37:21,581 INFO L226 Difference]: Without dead ends: 553 [2022-11-19 08:37:21,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 116.3s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 08:37:21,583 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 199 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:21,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 3633 Invalid, 3486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2022-11-19 08:37:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-19 08:37:21,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 501. [2022-11-19 08:37:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 376 states have (on average 1.4946808510638299) internal successors, (562), 381 states have internal predecessors, (562), 98 states have call successors, (98), 28 states have call predecessors, (98), 26 states have return successors, (97), 93 states have call predecessors, (97), 97 states have call successors, (97) [2022-11-19 08:37:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 757 transitions. [2022-11-19 08:37:21,965 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 757 transitions. Word has length 72 [2022-11-19 08:37:21,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:21,965 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 757 transitions. [2022-11-19 08:37:21,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-11-19 08:37:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 757 transitions. [2022-11-19 08:37:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:37:21,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:21,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:21,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:37:22,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 08:37:22,176 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:22,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2021857534, now seen corresponding path program 1 times [2022-11-19 08:37:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:22,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502484751] [2022-11-19 08:37:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:22,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:37:22,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502484751] [2022-11-19 08:37:22,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502484751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:37:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222232701] [2022-11-19 08:37:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:22,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:37:22,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:37:22,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26080eda-cc00-4fe2-9065-43ac0a279b53/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:37:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:22,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:37:22,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:37:22,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:37:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 08:37:22,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222232701] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:37:22,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1640417644] [2022-11-19 08:37:22,723 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-19 08:37:22,723 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:37:22,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:37:22,724 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:37:22,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:38:14,995 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-19 08:38:15,347 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 08:38:15,695 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-11-19 08:38:17,776 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-19 08:38:17,827 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-11-19 08:38:34,111 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-11-19 08:38:34,150 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 438 for LOIs [2022-11-19 08:38:34,777 INFO L180 IcfgInterpreter]: Interpretation finished