./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0 --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 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da --- 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-e04fb08 [2022-11-16 19:56:30,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:56:30,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:56:30,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:56:30,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:56:30,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:56:30,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:56:30,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:56:30,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:56:30,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:56:30,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:56:30,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:56:30,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:56:30,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:56:30,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:56:30,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:56:30,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:56:30,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:56:30,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:56:30,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:56:30,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:56:30,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:56:30,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:56:30,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:56:30,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:56:30,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:56:30,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:56:30,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:56:30,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:56:30,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:56:30,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:56:30,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:56:30,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:56:30,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:56:30,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:56:30,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:56:30,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:56:30,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:56:30,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:56:30,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:56:30,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:56:30,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:56:30,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:56:30,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:56:30,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:56:30,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:56:30,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:56:30,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:56:30,501 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:56:30,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:56:30,502 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:56:30,502 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:56:30,503 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:56:30,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:56:30,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:56:30,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:56:30,504 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:56:30,504 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:56:30,504 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:56:30,505 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:56:30,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:56:30,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:56:30,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:56:30,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:56:30,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:56:30,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:56:30,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:56:30,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:56:30,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:56:30,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:56:30,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:56:30,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:56:30,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:56:30,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:56:30,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:56:30,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:56:30,510 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:56:30,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:56:30,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:56:30,511 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:56:30,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:56:30,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:56:30,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:56:30,512 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_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da [2022-11-16 19:56:30,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:56:30,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:56:30,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:56:30,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:56:30,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:56:30,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-16 19:56:30,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/data/3a6a5c268/c0cc355965d74aa2be2b166c7dfb25d6/FLAGdae4dd028 [2022-11-16 19:56:31,644 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:56:31,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-16 19:56:31,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/data/3a6a5c268/c0cc355965d74aa2be2b166c7dfb25d6/FLAGdae4dd028 [2022-11-16 19:56:31,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/data/3a6a5c268/c0cc355965d74aa2be2b166c7dfb25d6 [2022-11-16 19:56:31,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:56:31,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:56:31,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:56:31,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:56:31,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:56:31,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:56:31" (1/1) ... [2022-11-16 19:56:31,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95e122b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:31, skipping insertion in model container [2022-11-16 19:56:31,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:56:31" (1/1) ... [2022-11-16 19:56:31,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:56:32,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:56:32,636 WARN L229 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_20eb6244-889f-4258-96ee-5afbf78217d7/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-16 19:56:32,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:56:32,683 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:56:32,849 WARN L229 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_20eb6244-889f-4258-96ee-5afbf78217d7/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-16 19:56:32,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:56:32,898 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:56:32,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32 WrapperNode [2022-11-16 19:56:32,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:56:32,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:56:32,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:56:32,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:56:32,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:32,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,004 INFO L138 Inliner]: procedures = 122, calls = 186, calls flagged for inlining = 50, calls inlined = 40, statements flattened = 820 [2022-11-16 19:56:33,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:56:33,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:56:33,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:56:33,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:56:33,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:56:33,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:56:33,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:56:33,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:56:33,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (1/1) ... [2022-11-16 19:56:33,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:56:33,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:56:33,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:56:33,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 19:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 19:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 19:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 19:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 19:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 19:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 19:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 19:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 19:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 19:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 19:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 19:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 19:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 19:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 19:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 19:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 19:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 19:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 19:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 19:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 19:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 19:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 19:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 19:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 19:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 19:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 19:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 19:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 19:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 19:56:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 19:56:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:56:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:56:33,452 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:56:33,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:56:34,216 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:56:34,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:56:34,621 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:56:34,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:56:34 BoogieIcfgContainer [2022-11-16 19:56:34,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:56:34,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:56:34,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:56:34,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:56:34,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:56:31" (1/3) ... [2022-11-16 19:56:34,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4123ff3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:56:34, skipping insertion in model container [2022-11-16 19:56:34,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:56:32" (2/3) ... [2022-11-16 19:56:34,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4123ff3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:56:34, skipping insertion in model container [2022-11-16 19:56:34,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:56:34" (3/3) ... [2022-11-16 19:56:34,635 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2022-11-16 19:56:34,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:56:34,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:56:34,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:56:34,745 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;@6195acf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:56:34,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:56:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-16 19:56:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 19:56:34,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:34,760 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] [2022-11-16 19:56:34,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:34,766 INFO L85 PathProgramCache]: Analyzing trace with hash -241097185, now seen corresponding path program 1 times [2022-11-16 19:56:34,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:34,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089480544] [2022-11-16 19:56:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:34,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:35,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:35,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089480544] [2022-11-16 19:56:35,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089480544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:56:35,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:56:35,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:56:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621652870] [2022-11-16 19:56:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:56:35,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 19:56:35,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:56:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 19:56:35,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:56:35,195 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:35,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:56:35,343 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2022-11-16 19:56:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 19:56:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-16 19:56:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:56:35,375 INFO L225 Difference]: With dead ends: 197 [2022-11-16 19:56:35,376 INFO L226 Difference]: Without dead ends: 137 [2022-11-16 19:56:35,381 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 [2022-11-16 19:56:35,385 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:56:35,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:56:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-16 19:56:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-16 19:56:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-16 19:56:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2022-11-16 19:56:35,496 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2022-11-16 19:56:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:56:35,500 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2022-11-16 19:56:35,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:35,503 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2022-11-16 19:56:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-16 19:56:35,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:35,513 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] [2022-11-16 19:56:35,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:56:35,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:35,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash -289282246, now seen corresponding path program 1 times [2022-11-16 19:56:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:35,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542563017] [2022-11-16 19:56:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:35,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:35,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:35,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542563017] [2022-11-16 19:56:35,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542563017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:56:35,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:56:35,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:56:35,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065908104] [2022-11-16 19:56:35,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:56:35,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:56:35,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:56:35,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:56:35,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:56:35,827 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:35,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:56:35,916 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2022-11-16 19:56:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:56:35,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-11-16 19:56:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:56:35,919 INFO L225 Difference]: With dead ends: 193 [2022-11-16 19:56:35,919 INFO L226 Difference]: Without dead ends: 139 [2022-11-16 19:56:35,920 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 [2022-11-16 19:56:35,921 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:56:35,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:56:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-16 19:56:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-16 19:56:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-16 19:56:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2022-11-16 19:56:35,936 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2022-11-16 19:56:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:56:35,937 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2022-11-16 19:56:35,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2022-11-16 19:56:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-16 19:56:35,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:35,939 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] [2022-11-16 19:56:35,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:56:35,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash -899735755, now seen corresponding path program 1 times [2022-11-16 19:56:35,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:35,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208430616] [2022-11-16 19:56:35,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:35,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:36,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:36,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208430616] [2022-11-16 19:56:36,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208430616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:56:36,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:56:36,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:56:36,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278951867] [2022-11-16 19:56:36,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:56:36,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:56:36,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:56:36,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:56:36,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:56:36,070 INFO L87 Difference]: Start difference. First operand 139 states and 190 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:36,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:56:36,158 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2022-11-16 19:56:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:56:36,158 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-11-16 19:56:36,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:56:36,160 INFO L225 Difference]: With dead ends: 308 [2022-11-16 19:56:36,160 INFO L226 Difference]: Without dead ends: 187 [2022-11-16 19:56:36,161 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 [2022-11-16 19:56:36,162 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:56:36,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:56:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-16 19:56:36,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-11-16 19:56:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-16 19:56:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2022-11-16 19:56:36,180 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2022-11-16 19:56:36,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:56:36,181 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2022-11-16 19:56:36,181 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 19:56:36,181 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2022-11-16 19:56:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-16 19:56:36,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:36,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:56:36,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:56:36,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash -896142788, now seen corresponding path program 1 times [2022-11-16 19:56:36,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:36,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487632267] [2022-11-16 19:56:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:36,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:36,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:36,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487632267] [2022-11-16 19:56:36,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487632267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:56:36,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98777840] [2022-11-16 19:56:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:36,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:56:36,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:56:36,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:56:36,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:56:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:36,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:56:36,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:56:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:36,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:56:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 19:56:36,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98777840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:56:36,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [721803449] [2022-11-16 19:56:36,834 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-11-16 19:56:36,835 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:56:36,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:56:36,846 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:56:36,849 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:57:10,527 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 19:57:10,888 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-16 19:57:11,273 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:57:48,900 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:57:55,038 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:58:24,525 WARN L233 SmtUtils]: Spent 22.70s on a formula simplification. DAG size of input: 587 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:58:48,350 WARN L233 SmtUtils]: Spent 23.41s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:58:57,433 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 576 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:59:06,362 WARN L233 SmtUtils]: Spent 8.54s on a formula simplification. DAG size of input: 574 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:59:08,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [721803449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:08,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:59:08,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-16 19:59:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415288117] [2022-11-16 19:59:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:08,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 19:59:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 19:59:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-16 19:59:08,035 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-16 19:59:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:17,438 INFO L93 Difference]: Finished difference Result 443 states and 691 transitions. [2022-11-16 19:59:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 19:59:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 60 [2022-11-16 19:59:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:17,456 INFO L225 Difference]: With dead ends: 443 [2022-11-16 19:59:17,458 INFO L226 Difference]: Without dead ends: 279 [2022-11-16 19:59:17,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 116.7s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-16 19:59:17,462 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 143 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:17,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 2292 Invalid, 1730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-16 19:59:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-16 19:59:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2022-11-16 19:59:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 141 states have internal predecessors, (199), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-16 19:59:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2022-11-16 19:59:17,680 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2022-11-16 19:59:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:17,681 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2022-11-16 19:59:17,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-16 19:59:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2022-11-16 19:59:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 19:59:17,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:17,686 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] [2022-11-16 19:59:17,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 19:59:17,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:17,894 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:59:17,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:17,895 INFO L85 PathProgramCache]: Analyzing trace with hash -967381623, now seen corresponding path program 1 times [2022-11-16 19:59:17,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:17,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620807231] [2022-11-16 19:59:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:17,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 19:59:18,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620807231] [2022-11-16 19:59:18,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620807231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:18,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:59:18,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:59:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937772394] [2022-11-16 19:59:18,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:18,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:59:18,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:59:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:59:18,104 INFO L87 Difference]: Start difference. First operand 205 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:59:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:18,404 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2022-11-16 19:59:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:59:18,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2022-11-16 19:59:18,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:18,408 INFO L225 Difference]: With dead ends: 503 [2022-11-16 19:59:18,408 INFO L226 Difference]: Without dead ends: 322 [2022-11-16 19:59:18,409 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 [2022-11-16 19:59:18,410 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 55 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:18,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:59:18,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-16 19:59:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2022-11-16 19:59:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 225 states have (on average 1.488888888888889) internal successors, (335), 228 states have internal predecessors, (335), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-16 19:59:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2022-11-16 19:59:18,635 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2022-11-16 19:59:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:18,635 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2022-11-16 19:59:18,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:59:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2022-11-16 19:59:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 19:59:18,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:18,638 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] [2022-11-16 19:59:18,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:59:18,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:59:18,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:18,639 INFO L85 PathProgramCache]: Analyzing trace with hash -757827437, now seen corresponding path program 1 times [2022-11-16 19:59:18,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:18,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515917919] [2022-11-16 19:59:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:18,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 19:59:18,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:18,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515917919] [2022-11-16 19:59:18,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515917919] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:59:18,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726923342] [2022-11-16 19:59:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:18,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:18,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:18,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:59:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:19,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:59:19,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 19:59:19,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 19:59:19,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726923342] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:19,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1726715947] [2022-11-16 19:59:19,256 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-16 19:59:19,256 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:19,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:19,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:19,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:56,985 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-16 19:59:57,284 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-16 19:59:57,576 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-16 19:59:58,300 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-16 20:00:02,758 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-16 20:00:02,791 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-16 20:00:06,182 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:00:45,272 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:00:51,341 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:01:07,983 WARN L233 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 592 DAG size of output: 341 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:01:28,876 WARN L233 SmtUtils]: Spent 20.57s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:01:55,196 WARN L233 SmtUtils]: Spent 13.33s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:02:20,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1726715947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:02:20,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:02:20,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-16 20:02:20,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481298873] [2022-11-16 20:02:20,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:02:20,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-16 20:02:20,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:02:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-16 20:02:20,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1941, Unknown=0, NotChecked=0, Total=2070 [2022-11-16 20:02:20,863 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:02:43,526 WARN L233 SmtUtils]: Spent 17.11s on a formula simplification. DAG size of input: 577 DAG size of output: 437 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:03:06,939 WARN L233 SmtUtils]: Spent 10.06s on a formula simplification. DAG size of input: 595 DAG size of output: 426 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:03:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:03:31,499 INFO L93 Difference]: Finished difference Result 750 states and 1202 transitions. [2022-11-16 20:03:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 20:03:31,506 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 66 [2022-11-16 20:03:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:03:31,513 INFO L225 Difference]: With dead ends: 750 [2022-11-16 20:03:31,513 INFO L226 Difference]: Without dead ends: 496 [2022-11-16 20:03:31,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 185.2s TimeCoverageRelationStatistics Valid=234, Invalid=3306, Unknown=0, NotChecked=0, Total=3540 [2022-11-16 20:03:31,515 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 267 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 4585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:03:31,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 3633 Invalid, 4585 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [36 Valid, 4549 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2022-11-16 20:03:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-16 20:03:31,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 409. [2022-11-16 20:03:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 306 states have (on average 1.5359477124183007) internal successors, (470), 311 states have internal predecessors, (470), 83 states have call successors, (83), 21 states have call predecessors, (83), 19 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2022-11-16 20:03:31,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 635 transitions. [2022-11-16 20:03:31,748 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 635 transitions. Word has length 66 [2022-11-16 20:03:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:03:31,748 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 635 transitions. [2022-11-16 20:03:31,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:03:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 635 transitions. [2022-11-16 20:03:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 20:03:31,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:03:31,751 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] [2022-11-16 20:03:31,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:03:31,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 20:03:31,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:03:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:03:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -125879669, now seen corresponding path program 1 times [2022-11-16 20:03:31,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:03:31,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373213533] [2022-11-16 20:03:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:03:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:03:32,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:03:32,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373213533] [2022-11-16 20:03:32,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373213533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:03:32,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037902824] [2022-11-16 20:03:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:03:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:03:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:03:32,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:03:32,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:03:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:03:32,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:03:32,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:03:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:03:32,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:03:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:03:32,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037902824] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:03:32,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [746615208] [2022-11-16 20:03:32,593 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-16 20:03:32,594 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:03:32,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:03:32,596 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:03:32,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:04:44,468 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-16 20:04:44,802 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-16 20:04:44,878 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-11-16 20:04:45,266 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-16 20:04:45,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-11-16 20:04:46,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:04:59,942 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 447 DAG size of output: 268 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:05,500 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 470 DAG size of output: 288 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:32,736 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:39,795 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:46,734 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 518 DAG size of output: 290 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:00,182 WARN L233 SmtUtils]: Spent 13.04s on a formula simplification. DAG size of input: 640 DAG size of output: 412 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:25,749 WARN L233 SmtUtils]: Spent 25.13s on a formula simplification. DAG size of input: 642 DAG size of output: 518 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:31,453 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 576 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:37,738 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 578 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:55,256 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 568 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:07:08,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [746615208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:07:08,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:07:08,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-16 20:07:08,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009916262] [2022-11-16 20:07:08,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:07:08,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 20:07:08,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:07:08,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 20:07:08,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 20:07:08,786 INFO L87 Difference]: Start difference. First operand 409 states and 635 transitions. Second operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-16 20:07:25,137 WARN L233 SmtUtils]: Spent 10.78s on a formula simplification. DAG size of input: 631 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:07:39,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:07:39,324 INFO L93 Difference]: Finished difference Result 828 states and 1327 transitions. [2022-11-16 20:07:39,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 20:07:39,326 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2022-11-16 20:07:39,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:07:39,336 INFO L225 Difference]: With dead ends: 828 [2022-11-16 20:07:39,336 INFO L226 Difference]: Without dead ends: 574 [2022-11-16 20:07:39,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 156.9s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 20:07:39,338 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 116 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-16 20:07:39,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 2778 Invalid, 2912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2022-11-16 20:07:39,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-16 20:07:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 499. [2022-11-16 20:07:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 395 states have internal predecessors, (602), 88 states have call successors, (88), 24 states have call predecessors, (88), 22 states have return successors, (87), 81 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-16 20:07:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 777 transitions. [2022-11-16 20:07:39,826 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 777 transitions. Word has length 69 [2022-11-16 20:07:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:07:39,827 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 777 transitions. [2022-11-16 20:07:39,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-16 20:07:39,828 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 777 transitions. [2022-11-16 20:07:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 20:07:39,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:07:39,831 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:07:39,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:07:40,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:07:40,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:07:40,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:07:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1350480569, now seen corresponding path program 1 times [2022-11-16 20:07:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:07:40,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387317434] [2022-11-16 20:07:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:07:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:07:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:07:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:07:40,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:07:40,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387317434] [2022-11-16 20:07:40,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387317434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:07:40,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944378034] [2022-11-16 20:07:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:07:40,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:07:40,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:07:40,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:07:40,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20eb6244-889f-4258-96ee-5afbf78217d7/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:07:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:07:40,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 20:07:40,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:07:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:07:40,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:07:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:07:40,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944378034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:07:40,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280221999] [2022-11-16 20:07:40,690 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-16 20:07:40,691 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:07:40,691 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:07:40,691 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:07:40,691 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:09:14,096 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:09:14,455 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-16 20:09:14,829 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-16 20:09:15,633 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-16 20:09:20,614 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-16 20:09:20,654 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-16 20:09:24,625 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:10:02,991 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 486 DAG size of output: 284 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:10:12,347 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:10:20,070 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)