./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/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 bad89116a36bb46e02a3fc807805b2b6d03550190d8073d361f25c2754b15f25 --- 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 06:37:39,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:37:39,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:37:39,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:37:39,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:37:39,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:37:39,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:37:39,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:37:39,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:37:39,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:37:39,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:37:39,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:37:39,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:37:39,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:37:39,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:37:39,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:37:39,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:37:39,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:37:39,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:37:39,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:37:39,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:37:39,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:37:39,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:37:39,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:37:39,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:37:39,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:37:39,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:37:39,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:37:39,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:37:39,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:37:39,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:37:39,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:37:39,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:37:39,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:37:39,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:37:39,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:37:39,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:37:39,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:37:39,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:37:39,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:37:39,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:37:39,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:37:39,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:37:39,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:37:39,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:37:39,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:37:39,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:37:39,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:37:39,732 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:37:39,732 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:37:39,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:37:39,734 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:37:39,734 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:37:39,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:37:39,734 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:37:39,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:37:39,735 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:37:39,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:37:39,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:37:39,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:37:39,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:37:39,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:37:39,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:37:39,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:37:39,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:39,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:37:39,738 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:37:39,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:37:39,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:37:39,739 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:37:39,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:37:39,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:37:39,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:37:39,739 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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad89116a36bb46e02a3fc807805b2b6d03550190d8073d361f25c2754b15f25 [2022-12-14 06:37:39,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:37:39,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:37:39,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:37:39,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:37:39,964 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:37:39,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c [2022-12-14 06:37:42,559 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:37:42,798 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:37:42,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c [2022-12-14 06:37:42,813 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/data/fe84fd4c4/7a6633d230d94116b6a5edbb5a2f188a/FLAGa879f3436 [2022-12-14 06:37:43,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/data/fe84fd4c4/7a6633d230d94116b6a5edbb5a2f188a [2022-12-14 06:37:43,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:37:43,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:37:43,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:43,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:37:43,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:37:43,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195356cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43, skipping insertion in model container [2022-12-14 06:37:43,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:37:43,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:37:43,499 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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c[31008,31021] [2022-12-14 06:37:43,579 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,580 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,583 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,598 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,602 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,613 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,615 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,617 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:43,649 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:37:43,699 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_ce9ff8bf-d4ef-497b-9977-b43404c3b005/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c[31008,31021] [2022-12-14 06:37:43,721 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,722 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,724 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,727 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,729 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,733 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,735 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,735 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:37:43,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:43,764 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:37:43,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43 WrapperNode [2022-12-14 06:37:43,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:43,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:43,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:37:43,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:37:43,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,824 INFO L138 Inliner]: procedures = 132, calls = 225, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1045 [2022-12-14 06:37:43,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:43,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:37:43,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:37:43,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:37:43,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:37:43,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:37:43,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:37:43,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:37:43,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (1/1) ... [2022-12-14 06:37:43,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:43,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:43,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:37:43,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:37:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:37:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:37:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:37:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:37:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:37:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:37:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:37:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:37:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:37:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:37:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:37:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:37:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:37:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:37:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:37:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:37:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:37:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:37:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:37:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:37:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:37:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:37:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:37:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:37:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:37:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:37:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:37:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:37:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:37:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:37:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:37:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:37:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:37:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:37:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:37:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:37:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:37:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:37:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:37:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:37:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:37:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:37:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:37:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:37:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:37:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:37:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:37:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:37:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:37:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:37:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:37:44,133 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:37:44,135 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:37:44,662 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:37:45,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:37:45,017 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:37:45,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:45 BoogieIcfgContainer [2022-12-14 06:37:45,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:37:45,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:37:45,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:37:45,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:37:45,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:37:43" (1/3) ... [2022-12-14 06:37:45,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff2e27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:45, skipping insertion in model container [2022-12-14 06:37:45,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43" (2/3) ... [2022-12-14 06:37:45,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff2e27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:45, skipping insertion in model container [2022-12-14 06:37:45,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:45" (3/3) ... [2022-12-14 06:37:45,026 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2022-12-14 06:37:45,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:37:45,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:37:45,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:37:45,084 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;@efad27c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:37:45,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:37:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 123 states have internal predecessors, (156), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 06:37:45,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 06:37:45,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:45,098 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] [2022-12-14 06:37:45,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:45,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash -377011174, now seen corresponding path program 1 times [2022-12-14 06:37:45,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:45,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352761199] [2022-12-14 06:37:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:45,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:45,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352761199] [2022-12-14 06:37:45,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352761199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:45,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:37:45,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:37:45,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619034255] [2022-12-14 06:37:45,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:45,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:37:45,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:37:45,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:37:45,468 INFO L87 Difference]: Start difference. First operand has 205 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 123 states have internal predecessors, (156), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:45,588 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2022-12-14 06:37:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:37:45,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 80 [2022-12-14 06:37:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:45,598 INFO L225 Difference]: With dead ends: 327 [2022-12-14 06:37:45,598 INFO L226 Difference]: Without dead ends: 202 [2022-12-14 06:37:45,601 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 06:37:45,603 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:45,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:37:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-14 06:37:45,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-12-14 06:37:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 06:37:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 271 transitions. [2022-12-14 06:37:45,643 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 271 transitions. Word has length 80 [2022-12-14 06:37:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:45,644 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 271 transitions. [2022-12-14 06:37:45,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 271 transitions. [2022-12-14 06:37:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 06:37:45,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:45,647 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] [2022-12-14 06:37:45,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:37:45,647 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash 462964152, now seen corresponding path program 1 times [2022-12-14 06:37:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:45,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312020724] [2022-12-14 06:37:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:45,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312020724] [2022-12-14 06:37:45,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312020724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:45,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:37:45,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:37:45,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522316897] [2022-12-14 06:37:45,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:37:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:37:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:37:45,799 INFO L87 Difference]: Start difference. First operand 202 states and 271 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:45,899 INFO L93 Difference]: Finished difference Result 323 states and 422 transitions. [2022-12-14 06:37:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:37:45,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 81 [2022-12-14 06:37:45,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:45,901 INFO L225 Difference]: With dead ends: 323 [2022-12-14 06:37:45,902 INFO L226 Difference]: Without dead ends: 204 [2022-12-14 06:37:45,902 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 06:37:45,903 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:45,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:37:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-14 06:37:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-12-14 06:37:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 122 states have internal predecessors, (152), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-12-14 06:37:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 273 transitions. [2022-12-14 06:37:45,917 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 273 transitions. Word has length 81 [2022-12-14 06:37:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:45,917 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 273 transitions. [2022-12-14 06:37:45,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 273 transitions. [2022-12-14 06:37:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 06:37:45,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:45,919 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:45,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:37:45,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:45,920 INFO L85 PathProgramCache]: Analyzing trace with hash 636570450, now seen corresponding path program 1 times [2022-12-14 06:37:45,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:45,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026164791] [2022-12-14 06:37:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:45,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:45,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026164791] [2022-12-14 06:37:45,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026164791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:45,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:37:45,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:37:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192848522] [2022-12-14 06:37:45,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:45,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:37:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:37:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:37:45,993 INFO L87 Difference]: Start difference. First operand 204 states and 273 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:46,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:46,089 INFO L93 Difference]: Finished difference Result 438 states and 605 transitions. [2022-12-14 06:37:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:37:46,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-12-14 06:37:46,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:46,091 INFO L225 Difference]: With dead ends: 438 [2022-12-14 06:37:46,091 INFO L226 Difference]: Without dead ends: 252 [2022-12-14 06:37:46,092 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 06:37:46,093 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 57 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:46,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 486 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:37:46,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-12-14 06:37:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2022-12-14 06:37:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 154 states have internal predecessors, (205), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 06:37:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 348 transitions. [2022-12-14 06:37:46,121 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 348 transitions. Word has length 86 [2022-12-14 06:37:46,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:46,121 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 348 transitions. [2022-12-14 06:37:46,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 06:37:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 348 transitions. [2022-12-14 06:37:46,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 06:37:46,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:46,123 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:46,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:37:46,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:46,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:46,123 INFO L85 PathProgramCache]: Analyzing trace with hash 663431695, now seen corresponding path program 1 times [2022-12-14 06:37:46,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:46,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464281442] [2022-12-14 06:37:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:46,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:46,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464281442] [2022-12-14 06:37:46,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464281442] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537896863] [2022-12-14 06:37:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:46,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:46,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:37:46,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:37:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:46,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:37:46,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:37:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:46,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:37:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:37:46,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537896863] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:37:46,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [135199388] [2022-12-14 06:37:46,687 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-12-14 06:37:46,687 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:37:46,691 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:37:46,696 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:37:46,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:38:17,336 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:38:17,647 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 486 for LOIs [2022-12-14 06:38:57,362 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 06:38:57,667 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:38:58,117 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 484 for LOIs [2022-12-14 06:39:35,626 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 442 for LOIs [2022-12-14 06:39:35,923 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 250 for LOIs [2022-12-14 06:39:35,995 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-12-14 06:39:36,037 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 457 for LOIs [2022-12-14 06:39:36,700 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 252 for LOIs [2022-12-14 06:39:36,744 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:40:30,138 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 565 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:40:35,679 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 571 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:41:54,112 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 606 DAG size of output: 485 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:42:00,655 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 607 DAG size of output: 486 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:42:03,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [135199388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:42:03,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:42:03,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2022-12-14 06:42:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776684303] [2022-12-14 06:42:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:42:03,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-14 06:42:03,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:42:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-14 06:42:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3372, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 06:42:03,623 INFO L87 Difference]: Start difference. First operand 247 states and 348 transitions. Second operand has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:42:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:42:50,388 INFO L93 Difference]: Finished difference Result 643 states and 957 transitions. [2022-12-14 06:42:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 06:42:50,389 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 87 [2022-12-14 06:42:50,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:42:50,391 INFO L225 Difference]: With dead ends: 643 [2022-12-14 06:42:50,391 INFO L226 Difference]: Without dead ends: 414 [2022-12-14 06:42:50,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 169.7s TimeCoverageRelationStatistics Valid=236, Invalid=4456, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 06:42:50,393 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 230 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 7624 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 7527 SdHoareTripleChecker+Invalid, 7653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 7624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:42:50,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 7527 Invalid, 7653 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 7624 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time] [2022-12-14 06:42:50,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-12-14 06:42:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 359. [2022-12-14 06:42:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 237 states have (on average 1.40084388185654) internal successors, (332), 241 states have internal predecessors, (332), 90 states have call successors, (90), 32 states have call predecessors, (90), 31 states have return successors, (90), 87 states have call predecessors, (90), 89 states have call successors, (90) [2022-12-14 06:42:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 512 transitions. [2022-12-14 06:42:50,542 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 512 transitions. Word has length 87 [2022-12-14 06:42:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:42:50,542 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 512 transitions. [2022-12-14 06:42:50,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 06:42:50,542 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 512 transitions. [2022-12-14 06:42:50,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 06:42:50,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:50,544 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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 06:42:50,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:42:50,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:42:50,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:50,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:50,748 INFO L85 PathProgramCache]: Analyzing trace with hash -732391323, now seen corresponding path program 1 times [2022-12-14 06:42:50,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:42:50,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269767969] [2022-12-14 06:42:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:50,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:42:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:42:50,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:42:50,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269767969] [2022-12-14 06:42:50,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269767969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:42:50,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:42:50,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:42:50,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327897808] [2022-12-14 06:42:50,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:42:50,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:42:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:42:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:42:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:42:50,852 INFO L87 Difference]: Start difference. First operand 359 states and 512 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:42:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:42:51,248 INFO L93 Difference]: Finished difference Result 832 states and 1230 transitions. [2022-12-14 06:42:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:42:51,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2022-12-14 06:42:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:42:51,251 INFO L225 Difference]: With dead ends: 832 [2022-12-14 06:42:51,252 INFO L226 Difference]: Without dead ends: 499 [2022-12-14 06:42:51,253 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 06:42:51,254 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 55 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:42:51,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:42:51,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-12-14 06:42:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 492. [2022-12-14 06:42:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 345 states have (on average 1.4753623188405798) internal successors, (509), 349 states have internal predecessors, (509), 115 states have call successors, (115), 32 states have call predecessors, (115), 31 states have return successors, (115), 112 states have call predecessors, (115), 114 states have call successors, (115) [2022-12-14 06:42:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 739 transitions. [2022-12-14 06:42:51,501 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 739 transitions. Word has length 92 [2022-12-14 06:42:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:42:51,502 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 739 transitions. [2022-12-14 06:42:51,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:42:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 739 transitions. [2022-12-14 06:42:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 06:42:51,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:51,505 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 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 06:42:51,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:42:51,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:51,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash -267539905, now seen corresponding path program 1 times [2022-12-14 06:42:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:42:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393891447] [2022-12-14 06:42:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:42:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:42:51,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:42:51,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393891447] [2022-12-14 06:42:51,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393891447] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:42:51,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615425759] [2022-12-14 06:42:51,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:51,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:42:51,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:42:51,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:42:51,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:42:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:51,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:42:51,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:42:51,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:42:51,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615425759] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:51,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [735905807] [2022-12-14 06:42:51,917 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 06:42:51,917 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:42:51,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:42:51,917 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:42:51,918 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:43:21,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:43:21,868 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 266 for LOIs [2022-12-14 06:43:23,746 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-12-14 06:43:23,784 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:43:24,086 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-12-14 06:43:57,109 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 06:43:57,146 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 06:43:57,217 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-12-14 06:43:57,258 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 06:43:59,154 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-12-14 06:43:59,196 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:44:38,089 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 589 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:44:54,872 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:41,367 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 602 DAG size of output: 481 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:48,503 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 603 DAG size of output: 482 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:57,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [735905807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:57,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:45:57,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [4, 4, 4] total 64 [2022-12-14 06:45:57,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600771076] [2022-12-14 06:45:57,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:57,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-14 06:45:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-14 06:45:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=3838, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 06:45:57,833 INFO L87 Difference]: Start difference. First operand 492 states and 739 transitions. Second operand has 59 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 36 states have internal predecessors, (46), 18 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 06:46:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:50,368 INFO L93 Difference]: Finished difference Result 990 states and 1514 transitions. [2022-12-14 06:46:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 06:46:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 36 states have internal predecessors, (46), 18 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 93 [2022-12-14 06:46:50,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:50,372 INFO L225 Difference]: With dead ends: 990 [2022-12-14 06:46:50,373 INFO L226 Difference]: Without dead ends: 671 [2022-12-14 06:46:50,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1433 ImplicationChecksByTransitivity, 147.9s TimeCoverageRelationStatistics Valid=325, Invalid=5837, Unknown=0, NotChecked=0, Total=6162 [2022-12-14 06:46:50,376 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 276 mSDsluCounter, 6921 mSDsCounter, 0 mSdLazyCounter, 7889 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 7930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 7889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:50,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 7192 Invalid, 7930 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [41 Valid, 7889 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time] [2022-12-14 06:46:50,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-12-14 06:46:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 519. [2022-12-14 06:46:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 368 states have (on average 1.4782608695652173) internal successors, (544), 374 states have internal predecessors, (544), 118 states have call successors, (118), 33 states have call predecessors, (118), 32 states have return successors, (118), 113 states have call predecessors, (118), 117 states have call successors, (118) [2022-12-14 06:46:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 780 transitions. [2022-12-14 06:46:50,676 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 780 transitions. Word has length 93 [2022-12-14 06:46:50,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:50,676 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 780 transitions. [2022-12-14 06:46:50,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 36 states have internal predecessors, (46), 18 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 06:46:50,676 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 780 transitions. [2022-12-14 06:46:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 06:46:50,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:50,678 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 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 06:46:50,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:46:50,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 06:46:50,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:46:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:50,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1226762596, now seen corresponding path program 1 times [2022-12-14 06:46:50,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:50,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636427926] [2022-12-14 06:46:50,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:50,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:46:51,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:51,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636427926] [2022-12-14 06:46:51,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636427926] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:51,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438284789] [2022-12-14 06:46:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:51,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:51,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:51,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:51,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:46:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:51,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:46:51,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:46:51,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:46:51,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438284789] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:51,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2043726326] [2022-12-14 06:46:51,336 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 06:46:51,336 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:51,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:51,337 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:51,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:48:48,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:48:48,651 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 06:48:48,983 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 457 for LOIs [2022-12-14 06:48:49,331 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 06:48:49,395 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:48:49,707 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:53,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2043726326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:53,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:53,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 06:49:53,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423246647] [2022-12-14 06:49:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:53,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:49:53,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:49:53,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1074, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:49:53,534 INFO L87 Difference]: Start difference. First operand 519 states and 780 transitions. Second operand has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 06:50:20,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:20,336 INFO L93 Difference]: Finished difference Result 959 states and 1473 transitions. [2022-12-14 06:50:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 06:50:20,337 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 96 [2022-12-14 06:50:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:20,339 INFO L225 Difference]: With dead ends: 959 [2022-12-14 06:50:20,339 INFO L226 Difference]: Without dead ends: 640 [2022-12-14 06:50:20,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 78.3s TimeCoverageRelationStatistics Valid=204, Invalid=1688, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 06:50:20,340 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 200 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 3828 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:20,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 4322 Invalid, 3848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 3828 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-12-14 06:50:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-12-14 06:50:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 574. [2022-12-14 06:50:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 415 states have (on average 1.472289156626506) internal successors, (611), 423 states have internal predecessors, (611), 123 states have call successors, (123), 36 states have call predecessors, (123), 35 states have return successors, (123), 116 states have call predecessors, (123), 122 states have call successors, (123) [2022-12-14 06:50:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 857 transitions. [2022-12-14 06:50:20,685 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 857 transitions. Word has length 96 [2022-12-14 06:50:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:20,685 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 857 transitions. [2022-12-14 06:50:20,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2022-12-14 06:50:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 857 transitions. [2022-12-14 06:50:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 06:50:20,687 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:20,687 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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 06:50:20,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:50:20,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 06:50:20,888 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:50:20,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash 128212556, now seen corresponding path program 1 times [2022-12-14 06:50:20,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:20,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866749165] [2022-12-14 06:50:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:50:20,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:20,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866749165] [2022-12-14 06:50:20,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866749165] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:50:20,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365510464] [2022-12-14 06:50:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:20,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:20,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:20,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:50:20,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9ff8bf-d4ef-497b-9977-b43404c3b005/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:50:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:21,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:50:21,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:50:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:50:21,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:50:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:50:21,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365510464] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:50:21,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1522834647] [2022-12-14 06:50:21,288 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 06:50:21,288 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:50:21,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:50:21,288 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:50:21,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:51:03,728 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:51:04,032 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 482 for LOIs [2022-12-14 06:51:40,983 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 06:51:41,290 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:51:41,609 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 480 for LOIs