./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh --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 cd09b7e02dd7459ada96201e9b5a915c0f0209c05135bf5a5174f874492a34ab --- 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-2329fc7 [2022-12-14 12:51:30,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:51:30,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:51:30,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:51:30,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:51:30,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:51:30,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:51:30,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:51:30,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:51:30,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:51:30,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:51:30,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:51:30,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:51:30,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:51:30,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:51:30,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:51:30,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:51:30,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:51:30,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:51:30,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:51:30,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:51:30,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:51:30,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:51:30,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:51:30,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:51:30,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:51:30,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:51:30,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:51:30,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:51:30,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:51:30,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:51:30,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:51:30,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:51:30,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:51:30,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:51:30,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:51:30,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:51:30,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:51:30,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:51:30,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:51:30,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:51:30,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:51:30,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:51:30,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:51:30,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:51:30,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:51:30,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:51:30,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:51:30,224 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:51:30,225 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:51:30,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:51:30,225 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:51:30,225 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:51:30,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:51:30,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:51:30,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:51:30,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:51:30,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:30,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:51:30,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:51:30,227 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_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd09b7e02dd7459ada96201e9b5a915c0f0209c05135bf5a5174f874492a34ab [2022-12-14 12:51:30,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:51:30,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:51:30,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:51:30,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:51:30,420 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:51:30,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product12.cil.c [2022-12-14 12:51:33,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:51:33,237 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:51:33,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c [2022-12-14 12:51:33,249 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/data/17628c882/744d4652b063432381a3923f5c749b44/FLAG7e88cc111 [2022-12-14 12:51:33,260 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/data/17628c882/744d4652b063432381a3923f5c749b44 [2022-12-14 12:51:33,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:51:33,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:51:33,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:33,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:51:33,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:51:33,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da8b378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33, skipping insertion in model container [2022-12-14 12:51:33,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:51:33,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:51:33,509 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,511 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c[16969,16982] [2022-12-14 12:51:33,564 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,565 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,587 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,590 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:33,651 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:51:33,676 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,679 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,683 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c[16969,16982] [2022-12-14 12:51:33,694 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,699 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,701 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:51:33,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:33,762 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:51:33,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33 WrapperNode [2022-12-14 12:51:33,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:33,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:33,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:51:33,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:51:33,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,817 INFO L138 Inliner]: procedures = 123, calls = 191, calls flagged for inlining = 51, calls inlined = 41, statements flattened = 834 [2022-12-14 12:51:33,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:33,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:51:33,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:51:33,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:51:33,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:51:33,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:51:33,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:51:33,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:51:33,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (1/1) ... [2022-12-14 12:51:33,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:33,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:33,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:51:33,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:51:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 12:51:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 12:51:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 12:51:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 12:51:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 12:51:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 12:51:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 12:51:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 12:51:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 12:51:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 12:51:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 12:51:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 12:51:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 12:51:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 12:51:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 12:51:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 12:51:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 12:51:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:51:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 12:51:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 12:51:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 12:51:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 12:51:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 12:51:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 12:51:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 12:51:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 12:51:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 12:51:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 12:51:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 12:51:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 12:51:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:51:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 12:51:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 12:51:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:51:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:51:34,042 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:51:34,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:51:34,563 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:51:34,797 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:51:34,798 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:51:34,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:34 BoogieIcfgContainer [2022-12-14 12:51:34,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:51:34,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:51:34,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:51:34,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:51:34,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:51:33" (1/3) ... [2022-12-14 12:51:34,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b8a8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:34, skipping insertion in model container [2022-12-14 12:51:34,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:33" (2/3) ... [2022-12-14 12:51:34,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b8a8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:34, skipping insertion in model container [2022-12-14 12:51:34,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:34" (3/3) ... [2022-12-14 12:51:34,807 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product12.cil.c [2022-12-14 12:51:34,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:51:34,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:51:34,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:51:34,869 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;@1879f8cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:51:34,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:51:34,873 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) [2022-12-14 12:51:34,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 12:51:34,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:34,883 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] [2022-12-14 12:51:34,883 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:34,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:34,887 INFO L85 PathProgramCache]: Analyzing trace with hash -575913651, now seen corresponding path program 1 times [2022-12-14 12:51:34,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:34,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868607237] [2022-12-14 12:51:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:35,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:35,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868607237] [2022-12-14 12:51:35,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868607237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:51:35,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:51:35,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:51:35,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978832717] [2022-12-14 12:51:35,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:51:35,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:51:35,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:51:35,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:51:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:51:35,185 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) [2022-12-14 12:51:35,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:51:35,286 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2022-12-14 12:51:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:51:35,288 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 [2022-12-14 12:51:35,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:51:35,298 INFO L225 Difference]: With dead ends: 197 [2022-12-14 12:51:35,299 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 12:51:35,302 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 [2022-12-14 12:51:35,305 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 [2022-12-14 12:51:35,306 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] [2022-12-14 12:51:35,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 12:51:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 12:51:35,353 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) [2022-12-14 12:51:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2022-12-14 12:51:35,358 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2022-12-14 12:51:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:51:35,359 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2022-12-14 12:51:35,359 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) [2022-12-14 12:51:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2022-12-14 12:51:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 12:51:35,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:35,363 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] [2022-12-14 12:51:35,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:51:35,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -620872407, now seen corresponding path program 1 times [2022-12-14 12:51:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289156644] [2022-12-14 12:51:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:35,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289156644] [2022-12-14 12:51:35,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289156644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:51:35,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:51:35,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:51:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389477761] [2022-12-14 12:51:35,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:51:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:51:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:51:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:51:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:51:35,479 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) [2022-12-14 12:51:35,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:51:35,552 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2022-12-14 12:51:35,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:51:35,553 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 [2022-12-14 12:51:35,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:51:35,554 INFO L225 Difference]: With dead ends: 193 [2022-12-14 12:51:35,554 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 12:51:35,555 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 [2022-12-14 12:51:35,556 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-12-14 12:51:35,556 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] [2022-12-14 12:51:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 12:51:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 12:51:35,565 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) [2022-12-14 12:51:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2022-12-14 12:51:35,566 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2022-12-14 12:51:35,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:51:35,566 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2022-12-14 12:51:35,566 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) [2022-12-14 12:51:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2022-12-14 12:51:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:51:35,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:35,568 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] [2022-12-14 12:51:35,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:51:35,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:35,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1077879620, now seen corresponding path program 1 times [2022-12-14 12:51:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:35,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463784518] [2022-12-14 12:51:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:35,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:35,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463784518] [2022-12-14 12:51:35,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463784518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:51:35,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:51:35,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:51:35,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749937751] [2022-12-14 12:51:35,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:51:35,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:51:35,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:51:35,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:51:35,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:51:35,636 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) [2022-12-14 12:51:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:51:35,714 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2022-12-14 12:51:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:51:35,715 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 [2022-12-14 12:51:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:51:35,717 INFO L225 Difference]: With dead ends: 308 [2022-12-14 12:51:35,717 INFO L226 Difference]: Without dead ends: 187 [2022-12-14 12:51:35,717 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 [2022-12-14 12:51:35,718 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 57 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-12-14 12:51:35,719 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] [2022-12-14 12:51:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-14 12:51:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-12-14 12:51:35,731 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) [2022-12-14 12:51:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2022-12-14 12:51:35,732 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2022-12-14 12:51:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:51:35,733 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2022-12-14 12:51:35,733 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) [2022-12-14 12:51:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2022-12-14 12:51:35,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 12:51:35,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:35,737 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] [2022-12-14 12:51:35,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:51:35,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1246430642, now seen corresponding path program 1 times [2022-12-14 12:51:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:35,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41995948] [2022-12-14 12:51:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:35,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:35,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:35,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41995948] [2022-12-14 12:51:35,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41995948] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:51:35,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660211497] [2022-12-14 12:51:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:35,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:51:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:35,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:51:35,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:51:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:36,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:51:36,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:51:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:36,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:51:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:51:36,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660211497] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:51:36,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [980426487] [2022-12-14 12:51:36,142 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-12-14 12:51:36,142 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:51:36,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:51:36,148 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:51:36,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:52:00,630 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:52:00,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 12:52:01,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:52:45,082 WARN L233 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 589 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:52:52,626 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 591 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:53:03,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [980426487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:53:03,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:53:03,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 12:53:03,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11436815] [2022-12-14 12:53:03,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:53:03,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 12:53:03,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:53:03,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 12:53:03,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:53:03,880 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) [2022-12-14 12:53:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:53:08,946 INFO L93 Difference]: Finished difference Result 443 states and 691 transitions. [2022-12-14 12:53:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 12:53:08,947 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 [2022-12-14 12:53:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:53:08,950 INFO L225 Difference]: With dead ends: 443 [2022-12-14 12:53:08,950 INFO L226 Difference]: Without dead ends: 279 [2022-12-14 12:53:08,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 62.6s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:53:08,952 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 106 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:53:08,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2363 Invalid, 1712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 12:53:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-12-14 12:53:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2022-12-14 12:53:09,071 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) [2022-12-14 12:53:09,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2022-12-14 12:53:09,073 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2022-12-14 12:53:09,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:53:09,073 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2022-12-14 12:53:09,073 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) [2022-12-14 12:53:09,074 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2022-12-14 12:53:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 12:53:09,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:53:09,076 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] [2022-12-14 12:53:09,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:53:09,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:53:09,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:53:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:53:09,279 INFO L85 PathProgramCache]: Analyzing trace with hash 382171708, now seen corresponding path program 1 times [2022-12-14 12:53:09,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:53:09,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692128461] [2022-12-14 12:53:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:53:09,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:53:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:53:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:53:09,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:53:09,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692128461] [2022-12-14 12:53:09,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692128461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:53:09,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:53:09,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:53:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821928821] [2022-12-14 12:53:09,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:53:09,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:53:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:53:09,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:53:09,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:53:09,393 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) [2022-12-14 12:53:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:53:09,590 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2022-12-14 12:53:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:53:09,590 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 [2022-12-14 12:53:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:53:09,592 INFO L225 Difference]: With dead ends: 503 [2022-12-14 12:53:09,592 INFO L226 Difference]: Without dead ends: 322 [2022-12-14 12:53:09,592 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 [2022-12-14 12:53:09,593 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 349 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 [2022-12-14 12:53:09,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 349 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:53:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-12-14 12:53:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2022-12-14 12:53:09,713 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) [2022-12-14 12:53:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2022-12-14 12:53:09,715 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2022-12-14 12:53:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:53:09,715 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2022-12-14 12:53:09,715 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) [2022-12-14 12:53:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2022-12-14 12:53:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 12:53:09,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:53:09,717 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] [2022-12-14 12:53:09,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:53:09,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:53:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:53:09,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1566899089, now seen corresponding path program 1 times [2022-12-14 12:53:09,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:53:09,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770351705] [2022-12-14 12:53:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:53:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:53:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:53:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:53:09,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:53:09,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770351705] [2022-12-14 12:53:09,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770351705] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:53:09,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958278440] [2022-12-14 12:53:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:53:09,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:53:09,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:53:09,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:53:09,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:53:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:53:10,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:53:10,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:53:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:53:10,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:53:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:53:10,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958278440] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:53:10,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [455829049] [2022-12-14 12:53:10,059 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 12:53:10,059 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:53:10,059 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:53:10,060 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:53:10,060 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:53:45,930 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:53:46,217 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 12:53:46,492 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-12-14 12:53:47,089 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-12-14 12:53:50,760 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-12-14 12:53:50,790 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 12:53:52,507 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:54:38,854 WARN L233 SmtUtils]: Spent 13.12s on a formula simplification. DAG size of input: 595 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:54:45,610 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 597 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:55:13,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [455829049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:55:13,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:55:13,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-12-14 12:55:13,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117476291] [2022-12-14 12:55:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:55:13,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 12:55:13,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:55:13,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 12:55:13,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1947, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 12:55:13,756 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) [2022-12-14 12:55:25,832 WARN L233 SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 556 DAG size of output: 446 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:55:51,694 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 588 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:55:58,837 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 598 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:56:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:56:11,520 INFO L93 Difference]: Finished difference Result 753 states and 1202 transitions. [2022-12-14 12:56:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 12:56:11,521 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 [2022-12-14 12:56:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:56:11,523 INFO L225 Difference]: With dead ends: 753 [2022-12-14 12:56:11,523 INFO L226 Difference]: Without dead ends: 499 [2022-12-14 12:56:11,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 126.3s TimeCoverageRelationStatistics Valid=204, Invalid=3218, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 12:56:11,524 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 242 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 4411 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 4444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:56:11,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 3554 Invalid, 4444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 4411 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-12-14 12:56:11,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-12-14 12:56:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 397. [2022-12-14 12:56:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 299 states have internal predecessors, (446), 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) [2022-12-14 12:56:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 611 transitions. [2022-12-14 12:56:11,730 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 611 transitions. Word has length 66 [2022-12-14 12:56:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:56:11,731 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 611 transitions. [2022-12-14 12:56:11,731 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) [2022-12-14 12:56:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 611 transitions. [2022-12-14 12:56:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 12:56:11,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:56:11,732 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] [2022-12-14 12:56:11,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:56:11,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:56:11,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:56:11,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:56:11,935 INFO L85 PathProgramCache]: Analyzing trace with hash 165834812, now seen corresponding path program 1 times [2022-12-14 12:56:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:56:11,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683166376] [2022-12-14 12:56:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:56:11,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:56:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:56:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:56:12,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:56:12,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683166376] [2022-12-14 12:56:12,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683166376] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:56:12,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722295971] [2022-12-14 12:56:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:56:12,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:56:12,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:56:12,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:56:12,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:56:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:56:12,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:56:12,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:56:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:56:12,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:56:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:56:12,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722295971] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:56:12,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1371038110] [2022-12-14 12:56:12,245 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 12:56:12,245 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:56:12,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:56:12,246 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:56:12,246 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:57:16,312 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 12:57:16,601 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 12:57:16,970 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 12:57:17,030 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 12:57:17,328 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 12:57:17,602 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 224 for LOIs [2022-12-14 12:57:18,263 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 219 for LOIs [2022-12-14 12:57:28,774 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 202 for LOIs [2022-12-14 12:57:28,800 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 219 for LOIs [2022-12-14 12:57:28,888 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:59:04,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1371038110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:59:04,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:59:04,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [4, 4, 4] total 52 [2022-12-14 12:59:04,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562831999] [2022-12-14 12:59:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:59:04,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-14 12:59:04,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:59:04,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-14 12:59:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2503, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 12:59:04,830 INFO L87 Difference]: Start difference. First operand 397 states and 611 transitions. Second operand has 47 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:59:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:59:42,531 INFO L93 Difference]: Finished difference Result 815 states and 1293 transitions. [2022-12-14 12:59:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 12:59:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 69 [2022-12-14 12:59:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:59:42,534 INFO L225 Difference]: With dead ends: 815 [2022-12-14 12:59:42,534 INFO L226 Difference]: Without dead ends: 561 [2022-12-14 12:59:42,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 118.0s TimeCoverageRelationStatistics Valid=210, Invalid=3450, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 12:59:42,536 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 255 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 5677 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 5705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:59:42,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 3857 Invalid, 5705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 5677 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2022-12-14 12:59:42,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-12-14 12:59:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 481. [2022-12-14 12:59:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 363 states have (on average 1.5151515151515151) internal successors, (550), 371 states have internal predecessors, (550), 93 states have call successors, (93), 28 states have call predecessors, (93), 24 states have return successors, (92), 83 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-14 12:59:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 735 transitions. [2022-12-14 12:59:42,866 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 735 transitions. Word has length 69 [2022-12-14 12:59:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:59:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 735 transitions. [2022-12-14 12:59:42,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:59:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 735 transitions. [2022-12-14 12:59:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 12:59:42,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:59:42,868 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:59:42,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:59:43,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 12:59:43,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:59:43,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:59:43,071 INFO L85 PathProgramCache]: Analyzing trace with hash -905066646, now seen corresponding path program 1 times [2022-12-14 12:59:43,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:59:43,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431678550] [2022-12-14 12:59:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:59:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:59:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:59:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:59:43,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:59:43,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431678550] [2022-12-14 12:59:43,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431678550] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:59:43,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952672232] [2022-12-14 12:59:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:59:43,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:59:43,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:59:43,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:59:43,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:59:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:59:43,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:59:43,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:59:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:59:43,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:59:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:59:43,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952672232] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:59:43,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1448002698] [2022-12-14 12:59:43,464 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 12:59:43,464 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:59:43,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:59:43,465 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:59:43,465 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:00:15,732 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:00:16,018 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 13:00:16,078 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 13:00:16,141 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 224 for LOIs [2022-12-14 13:00:16,646 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 13:00:16,705 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:00:16,995 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 221 for LOIs [2022-12-14 13:00:30,694 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 216 for LOIs [2022-12-14 13:00:30,727 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 202 for LOIs [2022-12-14 13:00:30,753 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 422 for LOIs [2022-12-14 13:00:33,417 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 407 for LOIs [2022-12-14 13:00:33,636 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:02:06,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1448002698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:06,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:02:06,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-12-14 13:02:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272986966] [2022-12-14 13:02:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:06,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 13:02:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 13:02:06,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3156, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 13:02:06,561 INFO L87 Difference]: Start difference. First operand 481 states and 735 transitions. Second operand has 53 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 13:02:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:02:49,247 INFO L93 Difference]: Finished difference Result 620 states and 943 transitions. [2022-12-14 13:02:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 13:02:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 75 [2022-12-14 13:02:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:02:49,252 INFO L225 Difference]: With dead ends: 620 [2022-12-14 13:02:49,252 INFO L226 Difference]: Without dead ends: 572 [2022-12-14 13:02:49,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 115.4s TimeCoverageRelationStatistics Valid=241, Invalid=4589, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 13:02:49,256 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 249 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 7317 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 7338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 7317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:02:49,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 4772 Invalid, 7338 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [21 Valid, 7317 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2022-12-14 13:02:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-12-14 13:02:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 489. [2022-12-14 13:02:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 366 states have (on average 1.510928961748634) internal successors, (553), 375 states have internal predecessors, (553), 95 states have call successors, (95), 31 states have call predecessors, (95), 27 states have return successors, (94), 85 states have call predecessors, (94), 94 states have call successors, (94) [2022-12-14 13:02:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 742 transitions. [2022-12-14 13:02:49,614 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 742 transitions. Word has length 75 [2022-12-14 13:02:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:02:49,614 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 742 transitions. [2022-12-14 13:02:49,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 12 states have call predecessors, (17), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 13:02:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 742 transitions. [2022-12-14 13:02:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 13:02:49,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:49,616 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] [2022-12-14 13:02:49,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:02:49,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 13:02:49,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:02:49,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:49,817 INFO L85 PathProgramCache]: Analyzing trace with hash -770341897, now seen corresponding path program 1 times [2022-12-14 13:02:49,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:49,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954439291] [2022-12-14 13:02:49,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:49,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:49,904 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 13:02:49,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:49,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954439291] [2022-12-14 13:02:49,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954439291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:49,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:02:49,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:02:49,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976286991] [2022-12-14 13:02:49,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:49,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:02:49,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:49,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:02:49,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:02:49,906 INFO L87 Difference]: Start difference. First operand 489 states and 742 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (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) [2022-12-14 13:02:50,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:02:50,383 INFO L93 Difference]: Finished difference Result 562 states and 828 transitions. [2022-12-14 13:02:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:02:50,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (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 71 [2022-12-14 13:02:50,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:02:50,385 INFO L225 Difference]: With dead ends: 562 [2022-12-14 13:02:50,385 INFO L226 Difference]: Without dead ends: 509 [2022-12-14 13:02:50,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:02:50,386 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 117 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:02:50,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 213 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:02:50,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-12-14 13:02:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 507. [2022-12-14 13:02:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 375 states have (on average 1.4986666666666666) internal successors, (562), 385 states have internal predecessors, (562), 99 states have call successors, (99), 37 states have call predecessors, (99), 32 states have return successors, (98), 88 states have call predecessors, (98), 98 states have call successors, (98) [2022-12-14 13:02:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 759 transitions. [2022-12-14 13:02:50,737 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 759 transitions. Word has length 71 [2022-12-14 13:02:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:02:50,737 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 759 transitions. [2022-12-14 13:02:50,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (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) [2022-12-14 13:02:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 759 transitions. [2022-12-14 13:02:50,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 13:02:50,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:50,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:02:50,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:02:50,739 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:02:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:50,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2037469854, now seen corresponding path program 1 times [2022-12-14 13:02:50,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:50,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865427523] [2022-12-14 13:02:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:50,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 13:02:50,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:50,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865427523] [2022-12-14 13:02:50,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865427523] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:02:50,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939697369] [2022-12-14 13:02:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:50,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:02:50,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:02:50,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:02:50,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e63122-2d45-4e65-b9df-20c856f8ecee/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:02:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:51,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:02:51,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:02:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 13:02:51,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:02:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 13:02:51,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939697369] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:02:51,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266283738] [2022-12-14 13:02:51,126 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 13:02:51,126 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:02:51,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:02:51,127 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:02:51,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:18,278 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:04:18,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 13:04:18,854 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 13:04:18,912 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:04:19,203 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 13:04:19,480 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 224 for LOIs [2022-12-14 13:04:20,867 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 221 for LOIs [2022-12-14 13:04:33,649 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 401 for LOIs [2022-12-14 13:04:34,084 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 219 for LOIs [2022-12-14 13:04:34,174 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 216 for LOIs [2022-12-14 13:04:34,204 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:05:43,182 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 534 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)