./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW --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 00f3978296386b105e45bba586b0df56f2d34b783492fc63d6fdcb596a8910f4 --- 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-4e7fbc6 [2022-11-23 14:58:43,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:58:43,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:58:43,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:58:43,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:58:43,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:58:43,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:58:43,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:58:43,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:58:43,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:58:43,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:58:43,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:58:43,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:58:43,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:58:43,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:58:43,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:58:43,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:58:43,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:58:43,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:58:43,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:58:43,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:58:43,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:58:43,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:58:43,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:58:43,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:58:43,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:58:43,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:58:43,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:58:43,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:58:43,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:58:43,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:58:43,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:58:43,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:58:43,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:58:43,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:58:43,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:58:43,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:58:43,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:58:43,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:58:43,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:58:43,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:58:43,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:58:43,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:58:43,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:58:43,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:58:43,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:58:43,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:58:43,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:58:43,476 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:58:43,476 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:58:43,476 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:58:43,476 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:58:43,478 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:58:43,478 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:58:43,478 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:58:43,478 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:58:43,479 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:58:43,479 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:58:43,479 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:58:43,479 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:58:43,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:58:43,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:58:43,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:58:43,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:58:43,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:58:43,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:58:43,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:58:43,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:58:43,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:58:43,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:58:43,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:58:43,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:58:43,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:58:43,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:58:43,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:43,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:58:43,484 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:58:43,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:58:43,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:58:43,485 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:58:43,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:58:43,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:58:43,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:58:43,486 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_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00f3978296386b105e45bba586b0df56f2d34b783492fc63d6fdcb596a8910f4 [2022-11-23 14:58:43,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:58:43,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:58:43,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:58:43,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:58:43,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:58:43,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c [2022-11-23 14:58:46,819 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:58:47,133 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:58:47,133 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c [2022-11-23 14:58:47,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/data/1a877aa9d/b6d5ac6a514e42d18ab4efc933e2e3ba/FLAG39e825ad2 [2022-11-23 14:58:47,169 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/data/1a877aa9d/b6d5ac6a514e42d18ab4efc933e2e3ba [2022-11-23 14:58:47,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:58:47,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:58:47,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:47,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:58:47,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:58:47,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:47" (1/1) ... [2022-11-23 14:58:47,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4edf6ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:47, skipping insertion in model container [2022-11-23 14:58:47,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:47" (1/1) ... [2022-11-23 14:58:47,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:58:47,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:58:47,417 WARN L237 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_395c2aad-eecb-4af3-b418-19c1d9d2409e/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c[1542,1555] [2022-11-23 14:58:47,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:47,932 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:58:47,951 WARN L237 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_395c2aad-eecb-4af3-b418-19c1d9d2409e/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c[1542,1555] [2022-11-23 14:58:48,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:48,076 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:58:48,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48 WrapperNode [2022-11-23 14:58:48,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:48,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:48,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:58:48,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:58:48,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,186 INFO L138 Inliner]: procedures = 134, calls = 228, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1070 [2022-11-23 14:58:48,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:48,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:58:48,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:58:48,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:58:48,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:58:48,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:58:48,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:58:48,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:58:48,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (1/1) ... [2022-11-23 14:58:48,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:48,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:58:48,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:58:48,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:58:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 14:58:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 14:58:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 14:58:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 14:58:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 14:58:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 14:58:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:58:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:58:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:58:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:58:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:58:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:58:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:58:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:58:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 14:58:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 14:58:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:58:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:58:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:58:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:58:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:58:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:58:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:58:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:58:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:58:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:58:48,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:58:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:58:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:58:48,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:58:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 14:58:48,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 14:58:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:58:48,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:58:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:58:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:58:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:58:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:58:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:58:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:58:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:58:48,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:58:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 14:58:48,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 14:58:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:58:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:58:48,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:58:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:58:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:58:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:58:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:58:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:58:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:58:48,702 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:58:48,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:58:49,658 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:58:50,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:58:50,228 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:58:50,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:50 BoogieIcfgContainer [2022-11-23 14:58:50,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:58:50,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:58:50,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:58:50,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:58:50,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:47" (1/3) ... [2022-11-23 14:58:50,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b38842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:50, skipping insertion in model container [2022-11-23 14:58:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:48" (2/3) ... [2022-11-23 14:58:50,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b38842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:50, skipping insertion in model container [2022-11-23 14:58:50,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:50" (3/3) ... [2022-11-23 14:58:50,245 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product33.cil.c [2022-11-23 14:58:50,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:58:50,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:58:50,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:58:50,353 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;@70421fac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:58:50,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:58:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-23 14:58:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:58:50,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:50,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:50,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:50,387 INFO L85 PathProgramCache]: Analyzing trace with hash -336845607, now seen corresponding path program 1 times [2022-11-23 14:58:50,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:50,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959210948] [2022-11-23 14:58:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:50,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:50,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:50,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959210948] [2022-11-23 14:58:50,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959210948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:50,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:50,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:58:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548347054] [2022-11-23 14:58:50,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:50,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:58:50,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:58:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:58:50,877 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:51,105 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2022-11-23 14:58:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:58:51,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-11-23 14:58:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:51,126 INFO L225 Difference]: With dead ends: 341 [2022-11-23 14:58:51,126 INFO L226 Difference]: Without dead ends: 209 [2022-11-23 14:58:51,136 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 [2022-11-23 14:58:51,141 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:51,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:58:51,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-23 14:58:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-11-23 14:58:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 14:58:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-11-23 14:58:51,229 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2022-11-23 14:58:51,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:51,232 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-11-23 14:58:51,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-11-23 14:58:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 14:58:51,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:51,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:51,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:58:51,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:51,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:51,249 INFO L85 PathProgramCache]: Analyzing trace with hash -525117704, now seen corresponding path program 1 times [2022-11-23 14:58:51,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:51,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138906873] [2022-11-23 14:58:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:51,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:51,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:51,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138906873] [2022-11-23 14:58:51,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138906873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:51,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:51,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090067086] [2022-11-23 14:58:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:51,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:51,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:51,597 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:51,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:51,717 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2022-11-23 14:58:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:51,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-23 14:58:51,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:51,719 INFO L225 Difference]: With dead ends: 337 [2022-11-23 14:58:51,720 INFO L226 Difference]: Without dead ends: 211 [2022-11-23 14:58:51,721 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 [2022-11-23 14:58:51,722 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:51,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:58:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-23 14:58:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-23 14:58:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 14:58:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-11-23 14:58:51,738 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2022-11-23 14:58:51,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:51,738 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-11-23 14:58:51,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:51,739 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-11-23 14:58:51,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:58:51,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:51,741 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] [2022-11-23 14:58:51,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:58:51,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:51,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1878360945, now seen corresponding path program 1 times [2022-11-23 14:58:51,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:51,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246586967] [2022-11-23 14:58:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:51,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:51,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:51,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246586967] [2022-11-23 14:58:51,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246586967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:51,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:51,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:51,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789038090] [2022-11-23 14:58:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:51,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:51,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:51,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:51,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:51,863 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:51,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:51,999 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2022-11-23 14:58:51,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:51,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-23 14:58:52,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:52,004 INFO L225 Difference]: With dead ends: 452 [2022-11-23 14:58:52,004 INFO L226 Difference]: Without dead ends: 259 [2022-11-23 14:58:52,005 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 [2022-11-23 14:58:52,006 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 57 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:52,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 502 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:58:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-23 14:58:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2022-11-23 14:58:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-23 14:58:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2022-11-23 14:58:52,031 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2022-11-23 14:58:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:52,032 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2022-11-23 14:58:52,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:58:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2022-11-23 14:58:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 14:58:52,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:52,035 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] [2022-11-23 14:58:52,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:58:52,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 320965469, now seen corresponding path program 1 times [2022-11-23 14:58:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395909099] [2022-11-23 14:58:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:52,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395909099] [2022-11-23 14:58:52,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395909099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:58:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892986183] [2022-11-23 14:58:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:52,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:58:52,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:58:52,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:58:52,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:58:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:52,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:58:52,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:58:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:52,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:58:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:58:52,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892986183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:58:52,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [726826111] [2022-11-23 14:58:52,752 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 14:58:52,752 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:58:52,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:58:52,761 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:58:52,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:59:26,397 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 14:59:26,844 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-23 14:59:27,224 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:00:07,260 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:29,540 WARN L233 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 592 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:50,000 WARN L233 SmtUtils]: Spent 20.13s on a formula simplification. DAG size of input: 594 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:10,196 WARN L233 SmtUtils]: Spent 19.84s on a formula simplification. DAG size of input: 593 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:30,380 WARN L233 SmtUtils]: Spent 19.82s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:35,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [726826111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:35,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:01:35,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-23 15:01:35,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344953804] [2022-11-23 15:01:35,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:35,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 15:01:35,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:35,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 15:01:35,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:01:35,378 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-23 15:01:48,654 WARN L233 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 575 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:58,604 WARN L233 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 582 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:02:08,092 WARN L233 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 573 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:02:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:16,249 INFO L93 Difference]: Finished difference Result 591 states and 882 transitions. [2022-11-23 15:02:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:02:16,250 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2022-11-23 15:02:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:16,253 INFO L225 Difference]: With dead ends: 591 [2022-11-23 15:02:16,253 INFO L226 Difference]: Without dead ends: 355 [2022-11-23 15:02:16,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 159.4s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:02:16,255 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 280 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:16,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 3362 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-23 15:02:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-23 15:02:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 282. [2022-11-23 15:02:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 182 states have (on average 1.3681318681318682) internal successors, (249), 185 states have internal predecessors, (249), 74 states have call successors, (74), 25 states have call predecessors, (74), 25 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-23 15:02:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 396 transitions. [2022-11-23 15:02:16,441 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 396 transitions. Word has length 71 [2022-11-23 15:02:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:16,443 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 396 transitions. [2022-11-23 15:02:16,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-23 15:02:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 396 transitions. [2022-11-23 15:02:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 15:02:16,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:16,446 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:16,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:02:16,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:02:16,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:02:16,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1742945564, now seen corresponding path program 1 times [2022-11-23 15:02:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:16,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236220845] [2022-11-23 15:02:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:16,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:02:16,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:16,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236220845] [2022-11-23 15:02:16,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236220845] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:02:16,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730727289] [2022-11-23 15:02:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:16,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:02:16,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:02:16,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:02:16,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:02:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:17,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:02:17,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:02:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:02:17,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:02:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:02:17,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730727289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:02:17,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [816764257] [2022-11-23 15:02:17,269 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-23 15:02:17,270 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:02:17,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:02:17,270 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:02:17,271 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:03:00,382 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 15:03:00,674 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-23 15:03:00,950 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:03:40,885 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:05,264 WARN L233 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 583 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:23,529 WARN L233 SmtUtils]: Spent 17.96s on a formula simplification. DAG size of input: 583 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:32,492 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 572 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:38,894 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 568 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:44,378 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 572 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:49,927 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 574 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:57,063 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 584 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:57,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [816764257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:57,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:04:57,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 15:04:57,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850928301] [2022-11-23 15:04:57,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:57,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 15:04:57,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:57,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 15:04:57,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:04:57,071 INFO L87 Difference]: Start difference. First operand 282 states and 396 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-23 15:05:03,725 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 396 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:17,961 WARN L233 SmtUtils]: Spent 14.01s on a formula simplification. DAG size of input: 547 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:49,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:49,925 INFO L93 Difference]: Finished difference Result 646 states and 961 transitions. [2022-11-23 15:05:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 15:05:49,926 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-11-23 15:05:49,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:49,930 INFO L225 Difference]: With dead ends: 646 [2022-11-23 15:05:49,931 INFO L226 Difference]: Without dead ends: 410 [2022-11-23 15:05:49,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 157.8s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-11-23 15:05:49,933 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 191 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:49,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 4016 Invalid, 2483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-11-23 15:05:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-23 15:05:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 326. [2022-11-23 15:05:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 223 states have (on average 1.4215246636771302) internal successors, (317), 227 states have internal predecessors, (317), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 15:05:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 468 transitions. [2022-11-23 15:05:50,187 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 468 transitions. Word has length 77 [2022-11-23 15:05:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:50,188 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 468 transitions. [2022-11-23 15:05:50,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-23 15:05:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 468 transitions. [2022-11-23 15:05:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-23 15:05:50,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:50,191 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:50,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 15:05:50,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:05:50,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:05:50,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash -524455089, now seen corresponding path program 1 times [2022-11-23 15:05:50,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:50,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779482311] [2022-11-23 15:05:50,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:50,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:05:50,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779482311] [2022-11-23 15:05:50,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779482311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:05:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612844902] [2022-11-23 15:05:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:50,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:05:50,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:05:50,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:05:50,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:05:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:50,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:05:50,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:05:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:05:50,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:05:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:05:51,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612844902] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:05:51,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [874896112] [2022-11-23 15:05:51,011 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-23 15:05:51,011 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:05:51,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:05:51,012 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:05:51,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:06:39,379 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-23 15:06:39,676 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-23 15:06:39,739 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-11-23 15:06:39,830 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-11-23 15:06:39,896 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-23 15:06:40,190 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:07:22,248 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:27,493 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 502 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:53,992 WARN L233 SmtUtils]: Spent 19.84s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:11,435 WARN L233 SmtUtils]: Spent 17.09s on a formula simplification. DAG size of input: 623 DAG size of output: 494 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:30,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [874896112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:30,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:08:30,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-23 15:08:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753908544] [2022-11-23 15:08:30,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:30,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 15:08:30,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 15:08:30,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:08:30,261 INFO L87 Difference]: Start difference. First operand 326 states and 468 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-23 15:08:40,853 WARN L233 SmtUtils]: Spent 8.57s on a formula simplification. DAG size of input: 622 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:48,487 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 585 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:09:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:04,789 INFO L93 Difference]: Finished difference Result 675 states and 1008 transitions. [2022-11-23 15:09:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 15:09:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-11-23 15:09:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:04,792 INFO L225 Difference]: With dead ends: 675 [2022-11-23 15:09:04,793 INFO L226 Difference]: Without dead ends: 439 [2022-11-23 15:09:04,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 126.4s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 15:09:04,795 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 201 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 3792 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:04,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 4430 Invalid, 3808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 3792 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2022-11-23 15:09:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-23 15:09:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 393. [2022-11-23 15:09:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 283 states have (on average 1.452296819787986) internal successors, (411), 288 states have internal predecessors, (411), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-23 15:09:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 570 transitions. [2022-11-23 15:09:05,120 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 570 transitions. Word has length 80 [2022-11-23 15:09:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:05,120 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 570 transitions. [2022-11-23 15:09:05,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-23 15:09:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 570 transitions. [2022-11-23 15:09:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-23 15:09:05,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:05,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:05,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:09:05,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 15:09:05,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:09:05,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1962387665, now seen corresponding path program 1 times [2022-11-23 15:09:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:05,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103506606] [2022-11-23 15:09:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:05,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:09:05,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:05,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103506606] [2022-11-23 15:09:05,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103506606] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:09:05,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34212449] [2022-11-23 15:09:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:05,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:05,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:05,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:09:05,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_395c2aad-eecb-4af3-b418-19c1d9d2409e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:09:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:05,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:09:05,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:09:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:09:05,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:09:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:09:05,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34212449] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:09:05,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [877333112] [2022-11-23 15:09:05,946 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-23 15:09:05,946 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:09:05,947 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:09:05,948 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:09:05,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:09:46,654 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-23 15:09:46,950 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-23 15:09:47,235 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-23 15:09:49,177 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-23 15:09:49,217 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-11-23 15:10:07,703 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 233 for LOIs [2022-11-23 15:10:07,741 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-11-23 15:10:07,819 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 258 for LOIs [2022-11-23 15:10:07,864 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-23 15:10:11,124 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:10:51,230 WARN L233 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:11:14,452 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 570 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:11:21,102 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 566 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:11:39,690 WARN L233 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 570 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:11:48,427 WARN L233 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 566 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:12:13,591 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 477 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)