./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9 --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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- 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-6b4ec56 [2022-11-20 20:12:52,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:12:52,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:12:52,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:12:52,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:12:52,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:12:52,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:12:52,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:12:52,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:12:52,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:12:52,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:12:52,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:12:52,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:12:52,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:12:52,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:12:52,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:12:52,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:12:52,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:12:52,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:12:52,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:12:52,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:12:52,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:12:52,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:12:52,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:12:52,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:12:52,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:12:52,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:12:52,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:12:52,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:12:52,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:12:52,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:12:52,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:12:52,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:12:52,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:12:52,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:12:52,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:12:52,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:12:52,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:12:52,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:12:52,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:12:52,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:12:52,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:12:52,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:12:52,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:12:52,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:12:52,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:12:52,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:12:52,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:12:52,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:12:52,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:12:52,772 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:12:52,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:12:52,773 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:12:52,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:12:52,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:12:52,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:12:52,775 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:12:52,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:12:52,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:12:52,776 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:12:52,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:12:52,777 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:12:52,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:12:52,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:12:52,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:12:52,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:12:52,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:12:52,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:12:52,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:12:52,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:12:52,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:12:52,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:12:52,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:12:52,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:12:52,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:12:52,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:12:52,782 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:12:52,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:12:52,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:12:52,783 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:12:52,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:12:52,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:12:52,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:12:52,785 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_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2022-11-20 20:12:53,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:12:53,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:12:53,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:12:53,153 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:12:53,154 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:12:53,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-11-20 20:12:56,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:12:56,586 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:12:56,587 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-11-20 20:12:56,604 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/data/9e77d835a/50ab084ac9a5433d8ecc171b222abffa/FLAG193651fc3 [2022-11-20 20:12:56,620 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/data/9e77d835a/50ab084ac9a5433d8ecc171b222abffa [2022-11-20 20:12:56,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:12:56,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:12:56,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:12:56,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:12:56,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:12:56,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:12:56" (1/1) ... [2022-11-20 20:12:56,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@868ac0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:56, skipping insertion in model container [2022-11-20 20:12:56,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:12:56" (1/1) ... [2022-11-20 20:12:56,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:12:56,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:12:56,907 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_f494f551-c70e-4770-9cc5-391ee4e19923/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-11-20 20:12:57,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:12:57,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:12:57,456 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_f494f551-c70e-4770-9cc5-391ee4e19923/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-11-20 20:12:57,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:12:57,562 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:12:57,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57 WrapperNode [2022-11-20 20:12:57,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:12:57,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:12:57,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:12:57,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:12:57,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,663 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 864 [2022-11-20 20:12:57,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:12:57,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:12:57,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:12:57,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:12:57,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,730 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:12:57,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:12:57,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:12:57,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:12:57,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2022-11-20 20:12:57,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:12:57,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:12:57,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:12:57,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:12:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 20:12:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 20:12:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 20:12:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 20:12:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 20:12:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 20:12:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 20:12:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 20:12:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 20:12:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 20:12:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 20:12:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 20:12:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 20:12:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 20:12:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 20:12:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 20:12:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 20:12:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 20:12:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 20:12:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 20:12:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 20:12:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:12:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 20:12:57,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 20:12:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 20:12:57,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 20:12:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 20:12:57,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 20:12:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 20:12:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 20:12:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 20:12:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 20:12:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 20:12:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 20:12:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 20:12:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 20:12:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 20:12:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 20:12:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:12:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 20:12:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 20:12:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:12:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:12:58,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:12:58,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:12:59,162 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:12:59,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:12:59,674 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:12:59,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:12:59 BoogieIcfgContainer [2022-11-20 20:12:59,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:12:59,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:12:59,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:12:59,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:12:59,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:12:56" (1/3) ... [2022-11-20 20:12:59,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c098fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:12:59, skipping insertion in model container [2022-11-20 20:12:59,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (2/3) ... [2022-11-20 20:12:59,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c098fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:12:59, skipping insertion in model container [2022-11-20 20:12:59,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:12:59" (3/3) ... [2022-11-20 20:12:59,686 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2022-11-20 20:12:59,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:12:59,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:12:59,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:12:59,795 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;@5a4bbe69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:12:59,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:12:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-20 20:12:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 20:12:59,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:12:59,816 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:12:59,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:12:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:12:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1959815282, now seen corresponding path program 1 times [2022-11-20 20:12:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:12:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638465622] [2022-11-20 20:12:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:12:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:13:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:13:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:00,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:13:00,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638465622] [2022-11-20 20:13:00,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638465622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:13:00,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:13:00,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:13:00,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567519531] [2022-11-20 20:13:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:13:00,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:13:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:13:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:13:00,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:13:00,409 INFO L87 Difference]: Start difference. First operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:13:00,579 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2022-11-20 20:13:00,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:13:00,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2022-11-20 20:13:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:13:00,598 INFO L225 Difference]: With dead ends: 243 [2022-11-20 20:13:00,598 INFO L226 Difference]: Without dead ends: 160 [2022-11-20 20:13:00,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:13:00,609 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:13:00,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:13:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-20 20:13:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-20 20:13:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 97 states have internal predecessors, (124), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-20 20:13:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2022-11-20 20:13:00,703 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2022-11-20 20:13:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:13:00,705 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2022-11-20 20:13:00,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:00,707 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2022-11-20 20:13:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 20:13:00,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:13:00,719 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] [2022-11-20 20:13:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:13:00,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:13:00,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:13:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1814457245, now seen corresponding path program 1 times [2022-11-20 20:13:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:13:00,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221897335] [2022-11-20 20:13:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:13:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:13:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:13:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:00,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:13:00,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221897335] [2022-11-20 20:13:00,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221897335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:13:00,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:13:00,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:13:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477853839] [2022-11-20 20:13:00,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:13:00,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:13:00,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:13:00,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:13:00,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:13:00,984 INFO L87 Difference]: Start difference. First operand 160 states and 215 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:13:01,166 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2022-11-20 20:13:01,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:13:01,167 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-11-20 20:13:01,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:13:01,173 INFO L225 Difference]: With dead ends: 239 [2022-11-20 20:13:01,174 INFO L226 Difference]: Without dead ends: 162 [2022-11-20 20:13:01,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:13:01,183 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:13:01,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:13:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-20 20:13:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-20 20:13:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-20 20:13:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2022-11-20 20:13:01,214 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2022-11-20 20:13:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:13:01,215 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2022-11-20 20:13:01,216 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2022-11-20 20:13:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 20:13:01,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:13:01,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:13:01,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:13:01,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:13:01,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:13:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash 227648781, now seen corresponding path program 1 times [2022-11-20 20:13:01,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:13:01,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814098958] [2022-11-20 20:13:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:13:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:13:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:13:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:01,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:13:01,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814098958] [2022-11-20 20:13:01,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814098958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:13:01,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:13:01,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:13:01,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093623306] [2022-11-20 20:13:01,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:13:01,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:13:01,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:13:01,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:13:01,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:13:01,440 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:13:01,580 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2022-11-20 20:13:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:13:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2022-11-20 20:13:01,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:13:01,588 INFO L225 Difference]: With dead ends: 354 [2022-11-20 20:13:01,588 INFO L226 Difference]: Without dead ends: 210 [2022-11-20 20:13:01,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:13:01,592 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 57 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:13:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 385 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:13:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-20 20:13:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2022-11-20 20:13:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3984375) internal successors, (179), 131 states have internal predecessors, (179), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-20 20:13:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2022-11-20 20:13:01,614 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2022-11-20 20:13:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:13:01,614 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2022-11-20 20:13:01,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 20:13:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2022-11-20 20:13:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 20:13:01,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:13:01,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:13:01,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:13:01,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:13:01,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:13:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1387919924, now seen corresponding path program 1 times [2022-11-20 20:13:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:13:01,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727377493] [2022-11-20 20:13:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:13:01,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:13:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:13:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:01,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:13:01,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727377493] [2022-11-20 20:13:01,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727377493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:13:01,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830092181] [2022-11-20 20:13:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:13:01,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:13:01,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:13:01,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:13:01,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:13:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:13:02,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:13:02,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:13:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:02,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:13:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:13:02,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830092181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:13:02,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1547220516] [2022-11-20 20:13:02,485 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-20 20:13:02,485 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:13:02,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:13:02,500 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:13:02,501 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:13:52,746 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 20:13:53,092 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 20:13:53,447 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-11-20 20:14:25,851 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-11-20 20:14:26,145 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-20 20:14:36,739 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 441 for LOIs [2022-11-20 20:14:37,021 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-11-20 20:14:37,772 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-11-20 20:14:37,821 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:15:14,969 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:15:21,240 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 490 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:15:32,904 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 512 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:15:54,930 WARN L233 SmtUtils]: Spent 21.68s on a formula simplification. DAG size of input: 594 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:16:16,976 WARN L233 SmtUtils]: Spent 21.69s on a formula simplification. DAG size of input: 596 DAG size of output: 469 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:16:23,587 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 356 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:16:29,320 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 568 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:16:38,130 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 587 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:17:04,602 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 524 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:17:18,404 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 520 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:17:25,927 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 533 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:18:03,798 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 570 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:18:14,247 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 581 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:18:18,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1547220516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:18:18,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:18:18,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-20 20:18:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506742481] [2022-11-20 20:18:18,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:18:18,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-20 20:18:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:18:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-20 20:18:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=2423, Unknown=0, NotChecked=0, Total=2550 [2022-11-20 20:18:18,406 INFO L87 Difference]: Start difference. First operand 205 states and 292 transitions. Second operand has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-20 20:18:31,714 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 546 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:18:42,266 WARN L233 SmtUtils]: Spent 10.07s on a formula simplification. DAG size of input: 548 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:18:55,270 WARN L233 SmtUtils]: Spent 12.49s on a formula simplification. DAG size of input: 600 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:19:08,941 WARN L233 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 601 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:19:22,749 WARN L233 SmtUtils]: Spent 13.12s on a formula simplification. DAG size of input: 602 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:19:33,999 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 586 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:19:51,289 WARN L233 SmtUtils]: Spent 16.02s on a formula simplification. DAG size of input: 604 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:20:14,041 WARN L233 SmtUtils]: Spent 21.47s on a formula simplification. DAG size of input: 599 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:20:49,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:20:49,329 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-11-20 20:20:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-20 20:20:49,331 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 79 [2022-11-20 20:20:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:20:49,334 INFO L225 Difference]: With dead ends: 540 [2022-11-20 20:20:49,335 INFO L226 Difference]: Without dead ends: 353 [2022-11-20 20:20:49,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 340.3s TimeCoverageRelationStatistics Valid=214, Invalid=3568, Unknown=0, NotChecked=0, Total=3782 [2022-11-20 20:20:49,338 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 318 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 6280 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 6314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:20:49,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 5493 Invalid, 6314 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [34 Valid, 6280 Invalid, 0 Unknown, 0 Unchecked, 30.4s Time] [2022-11-20 20:20:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-20 20:20:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 294. [2022-11-20 20:20:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 199 states have (on average 1.3869346733668342) internal successors, (276), 203 states have internal predecessors, (276), 69 states have call successors, (69), 26 states have call predecessors, (69), 25 states have return successors, (69), 66 states have call predecessors, (69), 68 states have call successors, (69) [2022-11-20 20:20:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2022-11-20 20:20:49,603 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 79 [2022-11-20 20:20:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:20:49,606 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2022-11-20 20:20:49,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-20 20:20:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2022-11-20 20:20:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-20 20:20:49,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:20:49,614 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:20:49,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:20:49,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:20:49,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:20:49,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:20:49,819 INFO L85 PathProgramCache]: Analyzing trace with hash 719779240, now seen corresponding path program 1 times [2022-11-20 20:20:49,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:20:49,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665857659] [2022-11-20 20:20:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:49,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:20:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:20:49,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:20:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665857659] [2022-11-20 20:20:49,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665857659] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:20:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481671073] [2022-11-20 20:20:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:49,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:20:49,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:20:49,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:20:49,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:20:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:50,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:20:50,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:20:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:20:50,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:20:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:20:50,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481671073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:20:50,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1309232062] [2022-11-20 20:20:50,388 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-11-20 20:20:50,389 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:20:50,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:20:50,390 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:20:50,390 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:21:35,609 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 20:21:35,926 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 20:21:36,219 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:22:03,295 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 468 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:22:15,396 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:22:21,564 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 490 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:22:33,629 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 512 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:22:46,670 WARN L233 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 583 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:06,316 WARN L233 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 580 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:12,792 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 551 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:19,297 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 553 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:27,614 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 584 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:27,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1309232062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:23:27,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:23:27,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-20 20:23:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463206488] [2022-11-20 20:23:27,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:23:27,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 20:23:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:23:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 20:23:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-20 20:23:27,815 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 20:23:46,961 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 410 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:23:57,292 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 521 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:24:05,118 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 571 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:24:13,475 WARN L233 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 588 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:24:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:24:22,707 INFO L93 Difference]: Finished difference Result 597 states and 893 transitions. [2022-11-20 20:24:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 20:24:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2022-11-20 20:24:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:24:22,713 INFO L225 Difference]: With dead ends: 597 [2022-11-20 20:24:22,713 INFO L226 Difference]: Without dead ends: 410 [2022-11-20 20:24:22,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 156.7s TimeCoverageRelationStatistics Valid=196, Invalid=1286, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 20:24:22,715 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 146 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:24:22,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3096 Invalid, 2175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-20 20:24:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-20 20:24:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 337. [2022-11-20 20:24:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 239 states have (on average 1.4309623430962344) internal successors, (342), 244 states have internal predecessors, (342), 71 states have call successors, (71), 27 states have call predecessors, (71), 26 states have return successors, (71), 67 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-20 20:24:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 484 transitions. [2022-11-20 20:24:22,978 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 484 transitions. Word has length 85 [2022-11-20 20:24:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:24:22,979 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 484 transitions. [2022-11-20 20:24:22,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-20 20:24:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 484 transitions. [2022-11-20 20:24:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 20:24:22,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:24:22,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:24:22,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 20:24:23,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:24:23,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:24:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:24:23,189 INFO L85 PathProgramCache]: Analyzing trace with hash 462120641, now seen corresponding path program 1 times [2022-11-20 20:24:23,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:24:23,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145074862] [2022-11-20 20:24:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:24:23,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:24:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:24:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:24:23,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:24:23,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145074862] [2022-11-20 20:24:23,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145074862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:24:23,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551425312] [2022-11-20 20:24:23,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:24:23,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:24:23,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:24:23,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:24:23,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f494f551-c70e-4770-9cc5-391ee4e19923/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:24:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:24:23,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:24:23,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:24:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:24:23,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:24:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:24:23,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551425312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:24:23,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1211777517] [2022-11-20 20:24:23,829 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-20 20:24:23,829 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:24:23,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:24:23,830 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:24:23,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:25:07,580 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 20:25:07,865 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-20 20:25:07,929 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-11-20 20:25:07,996 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-11-20 20:25:08,065 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 20:25:08,383 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:25:42,933 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:26:00,022 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 512 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:26:11,078 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:26:22,165 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:26:30,078 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 549 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)