./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product30.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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/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 c07a23e40b849b33d08a88f08826cd6b68b33a2f2aee4edabb68f594c2a0aef6 --- 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 07:58:33,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:58:33,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:58:33,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:58:33,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:58:33,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:58:33,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:58:33,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:58:33,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:58:33,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:58:33,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:58:33,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:58:33,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:58:33,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:58:33,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:58:33,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:58:33,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:58:33,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:58:33,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:58:33,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:58:33,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:58:33,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:58:33,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:58:33,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:58:33,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:58:33,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:58:33,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:58:33,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:58:33,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:58:33,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:58:33,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:58:33,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:58:33,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:58:33,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:58:33,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:58:33,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:58:33,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:58:33,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:58:33,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:58:33,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:58:33,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:58:33,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:58:33,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:58:33,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:58:33,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:58:33,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:58:33,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:58:33,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:58:33,106 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:58:33,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:58:33,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:58:33,106 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:58:33,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:58:33,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:58:33,125 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:58:33,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:58:33,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:58:33,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:58:33,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:58:33,126 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:58:33,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:58:33,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:58:33,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:58:33,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:58:33,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:58:33,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:58:33,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:58:33,129 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:58:33,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:58:33,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:58:33,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:58:33,129 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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c07a23e40b849b33d08a88f08826cd6b68b33a2f2aee4edabb68f594c2a0aef6 [2022-12-14 07:58:33,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:58:33,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:58:33,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:58:33,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:58:33,315 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:58:33,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product30.cil.c [2022-12-14 07:58:35,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:58:36,085 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:58:36,086 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/sv-benchmarks/c/product-lines/email_spec1_product30.cil.c [2022-12-14 07:58:36,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/data/c08d3c30a/250f1dbdf8074630bd6ba70d09fd938e/FLAG354b141d1 [2022-12-14 07:58:36,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/data/c08d3c30a/250f1dbdf8074630bd6ba70d09fd938e [2022-12-14 07:58:36,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:58:36,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:58:36,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:58:36,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:58:36,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:58:36,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39843c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36, skipping insertion in model container [2022-12-14 07:58:36,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:58:36,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:58:36,356 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,396 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,397 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,402 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,528 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,532 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,560 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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/sv-benchmarks/c/product-lines/email_spec1_product30.cil.c[58327,58340] [2022-12-14 07:58:36,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:58:36,584 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:58:36,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,604 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,605 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,608 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,653 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,655 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,659 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:58:36,670 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_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/sv-benchmarks/c/product-lines/email_spec1_product30.cil.c[58327,58340] [2022-12-14 07:58:36,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:58:36,707 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:58:36,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36 WrapperNode [2022-12-14 07:58:36,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:58:36,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:58:36,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:58:36,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:58:36,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,788 INFO L138 Inliner]: procedures = 131, calls = 218, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 909 [2022-12-14 07:58:36,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:58:36,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:58:36,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:58:36,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:58:36,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:58:36,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:58:36,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:58:36,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:58:36,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (1/1) ... [2022-12-14 07:58:36,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:58:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:58:36,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:58:36,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:58:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 07:58:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 07:58:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 07:58:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 07:58:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 07:58:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 07:58:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 07:58:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 07:58:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 07:58:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:58:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 07:58:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 07:58:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 07:58:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 07:58:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 07:58:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 07:58:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 07:58:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 07:58:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 07:58:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 07:58:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 07:58:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 07:58:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 07:58:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 07:58:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 07:58:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 07:58:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 07:58:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 07:58:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 07:58:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 07:58:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:58:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 07:58:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 07:58:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:58:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:58:37,085 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:58:37,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:58:37,657 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:58:37,911 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:58:37,911 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:58:37,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:58:37 BoogieIcfgContainer [2022-12-14 07:58:37,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:58:37,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:58:37,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:58:37,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:58:37,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:58:36" (1/3) ... [2022-12-14 07:58:37,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f90191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:58:37, skipping insertion in model container [2022-12-14 07:58:37,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:58:36" (2/3) ... [2022-12-14 07:58:37,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f90191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:58:37, skipping insertion in model container [2022-12-14 07:58:37,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:58:37" (3/3) ... [2022-12-14 07:58:37,919 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product30.cil.c [2022-12-14 07:58:37,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:58:37,933 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:58:37,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:58:37,974 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;@1650c5b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:58:37,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:58:37,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 07:58:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 07:58:37,986 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:58:37,987 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:58:37,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:58:37,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:58:37,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1429744993, now seen corresponding path program 1 times [2022-12-14 07:58:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:58:37,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954817465] [2022-12-14 07:58:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:58:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:58:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:58:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:38,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:58:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954817465] [2022-12-14 07:58:38,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954817465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:58:38,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:58:38,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:58:38,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097881769] [2022-12-14 07:58:38,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:58:38,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:58:38,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:58:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:58:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:58:38,247 INFO L87 Difference]: Start difference. First operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:58:38,361 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2022-12-14 07:58:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:58:38,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 07:58:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:58:38,374 INFO L225 Difference]: With dead ends: 295 [2022-12-14 07:58:38,374 INFO L226 Difference]: Without dead ends: 186 [2022-12-14 07:58:38,378 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 07:58:38,380 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:58:38,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:58:38,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-14 07:58:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-12-14 07:58:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 112 states have internal predecessors, (142), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 07:58:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2022-12-14 07:58:38,429 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 64 [2022-12-14 07:58:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:58:38,431 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2022-12-14 07:58:38,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2022-12-14 07:58:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 07:58:38,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:58:38,435 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:58:38,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:58:38,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:58:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:58:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash -578550477, now seen corresponding path program 1 times [2022-12-14 07:58:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:58:38,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366370979] [2022-12-14 07:58:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:58:38,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:58:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:58:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:38,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:58:38,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366370979] [2022-12-14 07:58:38,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366370979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:58:38,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:58:38,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:58:38,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322437131] [2022-12-14 07:58:38,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:58:38,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:58:38,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:58:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:58:38,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:58:38,629 INFO L87 Difference]: Start difference. First operand 186 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:58:38,732 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2022-12-14 07:58:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:58:38,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 07:58:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:58:38,735 INFO L225 Difference]: With dead ends: 291 [2022-12-14 07:58:38,735 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 07:58:38,736 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 07:58:38,737 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:58:38,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:58:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 07:58:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-12-14 07:58:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 07:58:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2022-12-14 07:58:38,756 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 65 [2022-12-14 07:58:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:58:38,756 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2022-12-14 07:58:38,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2022-12-14 07:58:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 07:58:38,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:58:38,759 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:58:38,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:58:38,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:58:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:58:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash -473937780, now seen corresponding path program 1 times [2022-12-14 07:58:38,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:58:38,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945821434] [2022-12-14 07:58:38,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:58:38,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:58:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:58:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:38,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:58:38,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945821434] [2022-12-14 07:58:38,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945821434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:58:38,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:58:38,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:58:38,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648565374] [2022-12-14 07:58:38,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:58:38,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:58:38,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:58:38,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:58:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:58:38,848 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:58:38,942 INFO L93 Difference]: Finished difference Result 406 states and 557 transitions. [2022-12-14 07:58:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:58:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 07:58:38,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:58:38,944 INFO L225 Difference]: With dead ends: 406 [2022-12-14 07:58:38,944 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 07:58:38,945 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 07:58:38,945 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:58:38,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 436 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:58:38,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 07:58:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2022-12-14 07:58:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 146 states have internal predecessors, (197), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 07:58:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2022-12-14 07:58:38,960 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 70 [2022-12-14 07:58:38,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:58:38,960 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2022-12-14 07:58:38,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:58:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2022-12-14 07:58:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 07:58:38,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:58:38,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:58:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:58:38,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:58:38,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:58:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash -712421706, now seen corresponding path program 1 times [2022-12-14 07:58:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:58:38,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282398724] [2022-12-14 07:58:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:58:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:58:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:58:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:39,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:58:39,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282398724] [2022-12-14 07:58:39,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282398724] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:58:39,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788348808] [2022-12-14 07:58:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:58:39,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:58:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:58:39,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:58:39,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:58:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:58:39,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:58:39,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:58:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:39,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:58:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:58:39,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788348808] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:58:39,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [621229893] [2022-12-14 07:58:39,446 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 07:58:39,447 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:58:39,450 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:58:39,455 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:58:39,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:59:10,770 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 07:59:11,061 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 07:59:11,352 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 483 for LOIs [2022-12-14 07:59:46,358 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 07:59:46,638 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 481 for LOIs [2022-12-14 08:00:06,122 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-12-14 08:00:06,395 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 08:00:06,465 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 258 for LOIs [2022-12-14 08:00:06,510 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-12-14 08:00:07,093 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:00:49,696 WARN L233 SmtUtils]: Spent 11.88s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:00:58,813 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 566 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:02:10,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [621229893] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:02:10,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:02:10,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 08:02:10,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462464018] [2022-12-14 08:02:10,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:02:10,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 08:02:10,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:02:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 08:02:10,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2617, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 08:02:10,285 INFO L87 Difference]: Start difference. First operand 231 states and 324 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:02:18,408 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 575 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:02:37,787 WARN L233 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 487 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:03:08,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:03:08,197 INFO L93 Difference]: Finished difference Result 631 states and 963 transitions. [2022-12-14 08:03:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-14 08:03:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 08:03:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:03:08,201 INFO L225 Difference]: With dead ends: 631 [2022-12-14 08:03:08,201 INFO L226 Difference]: Without dead ends: 418 [2022-12-14 08:03:08,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 157.3s TimeCoverageRelationStatistics Valid=212, Invalid=3820, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 08:03:08,203 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 255 mSDsluCounter, 6796 mSDsCounter, 0 mSdLazyCounter, 7660 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 7068 SdHoareTripleChecker+Invalid, 7687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 7660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:03:08,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 7068 Invalid, 7687 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 7660 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2022-12-14 08:03:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-14 08:03:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 285. [2022-12-14 08:03:08,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 183 states have (on average 1.360655737704918) internal successors, (249), 186 states have internal predecessors, (249), 72 states have call successors, (72), 31 states have call predecessors, (72), 29 states have return successors, (71), 69 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 08:03:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 392 transitions. [2022-12-14 08:03:08,329 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 392 transitions. Word has length 71 [2022-12-14 08:03:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:03:08,329 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 392 transitions. [2022-12-14 08:03:08,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:03:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 392 transitions. [2022-12-14 08:03:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:03:08,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:03:08,331 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:03:08,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:03:08,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:03:08,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:03:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:03:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash 538359636, now seen corresponding path program 1 times [2022-12-14 08:03:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:03:08,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145462514] [2022-12-14 08:03:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:03:08,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:03:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:03:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:03:08,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:03:08,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145462514] [2022-12-14 08:03:08,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145462514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:03:08,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:03:08,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:03:08,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899777042] [2022-12-14 08:03:08,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:03:08,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:03:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:03:08,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:03:08,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:03:08,625 INFO L87 Difference]: Start difference. First operand 285 states and 392 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:03:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:03:08,948 INFO L93 Difference]: Finished difference Result 630 states and 911 transitions. [2022-12-14 08:03:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:03:08,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 08:03:08,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:03:08,952 INFO L225 Difference]: With dead ends: 630 [2022-12-14 08:03:08,952 INFO L226 Difference]: Without dead ends: 400 [2022-12-14 08:03:08,953 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 08:03:08,954 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 55 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:03:08,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 455 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:03:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-12-14 08:03:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 395. [2022-12-14 08:03:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 268 states have (on average 1.4291044776119404) internal successors, (383), 271 states have internal predecessors, (383), 97 states have call successors, (97), 31 states have call predecessors, (97), 29 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-14 08:03:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 576 transitions. [2022-12-14 08:03:09,146 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 576 transitions. Word has length 76 [2022-12-14 08:03:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:03:09,146 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 576 transitions. [2022-12-14 08:03:09,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:03:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 576 transitions. [2022-12-14 08:03:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 08:03:09,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:03:09,147 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:03:09,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:03:09,148 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:03:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:03:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1887419173, now seen corresponding path program 1 times [2022-12-14 08:03:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:03:09,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880709220] [2022-12-14 08:03:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:03:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:03:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:03:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:03:09,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:03:09,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880709220] [2022-12-14 08:03:09,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880709220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:03:09,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695208130] [2022-12-14 08:03:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:03:09,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:03:09,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:03:09,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:03:09,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:03:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:03:09,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:03:09,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:03:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:03:09,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:03:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:03:09,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695208130] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:03:09,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [946970422] [2022-12-14 08:03:09,506 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 08:03:09,506 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:03:09,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:03:09,507 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:03:09,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:03:46,836 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:03:47,138 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 454 for LOIs [2022-12-14 08:03:47,432 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:04:28,830 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 583 DAG size of output: 392 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:04:41,741 WARN L233 SmtUtils]: Spent 12.65s on a formula simplification. DAG size of input: 593 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:04:56,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [946970422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:56,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:04:56,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 08:04:56,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281585774] [2022-12-14 08:04:56,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:56,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 08:04:56,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:56,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 08:04:56,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:04:56,507 INFO L87 Difference]: Start difference. First operand 395 states and 576 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 08:05:10,760 WARN L233 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 568 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:05:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:05:32,569 INFO L93 Difference]: Finished difference Result 812 states and 1238 transitions. [2022-12-14 08:05:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 08:05:32,570 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-12-14 08:05:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:05:32,572 INFO L225 Difference]: With dead ends: 812 [2022-12-14 08:05:32,572 INFO L226 Difference]: Without dead ends: 509 [2022-12-14 08:05:32,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 96.6s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 08:05:32,573 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 248 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:05:32,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 3341 Invalid, 2231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2222 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 08:05:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-12-14 08:05:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 438. [2022-12-14 08:05:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 308 states have (on average 1.4545454545454546) internal successors, (448), 312 states have internal predecessors, (448), 99 states have call successors, (99), 32 states have call predecessors, (99), 30 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2022-12-14 08:05:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 645 transitions. [2022-12-14 08:05:32,833 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 645 transitions. Word has length 77 [2022-12-14 08:05:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:05:32,833 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 645 transitions. [2022-12-14 08:05:32,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 08:05:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 645 transitions. [2022-12-14 08:05:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 08:05:32,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:32,834 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:32,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:05:33,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:05:33,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:05:33,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:33,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1478465256, now seen corresponding path program 1 times [2022-12-14 08:05:33,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:05:33,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145022510] [2022-12-14 08:05:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:33,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:05:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:05:33,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:05:33,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145022510] [2022-12-14 08:05:33,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145022510] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:05:33,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803685772] [2022-12-14 08:05:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:33,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:05:33,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:05:33,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:05:33,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:05:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:33,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:05:33,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:05:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:05:33,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:05:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:05:33,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803685772] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:05:33,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [5566975] [2022-12-14 08:05:33,403 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 08:05:33,404 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:05:33,404 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:05:33,404 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:05:33,404 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:06:14,099 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:06:14,505 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 08:06:14,567 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 446 for LOIs [2022-12-14 08:06:15,125 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 253 for LOIs [2022-12-14 08:06:15,269 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:06:15,565 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:06:59,047 WARN L233 SmtUtils]: Spent 11.74s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:07:05,003 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:07:16,928 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 562 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:07:28,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [5566975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:07:28,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:07:28,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 08:07:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604505551] [2022-12-14 08:07:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:07:28,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:07:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:07:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:07:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:07:28,627 INFO L87 Difference]: Start difference. First operand 438 states and 645 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 08:07:36,187 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 623 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:07:48,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:07:48,892 INFO L93 Difference]: Finished difference Result 884 states and 1356 transitions. [2022-12-14 08:07:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 08:07:48,894 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-12-14 08:07:48,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:07:48,896 INFO L225 Difference]: With dead ends: 884 [2022-12-14 08:07:48,896 INFO L226 Difference]: Without dead ends: 581 [2022-12-14 08:07:48,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 80.8s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 08:07:48,897 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 137 mSDsluCounter, 3624 mSDsCounter, 0 mSdLazyCounter, 3527 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:07:48,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3846 Invalid, 3537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3527 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 08:07:48,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-12-14 08:07:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 534. [2022-12-14 08:07:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 397 states have (on average 1.4886649874055415) internal successors, (591), 402 states have internal predecessors, (591), 103 states have call successors, (103), 35 states have call predecessors, (103), 33 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2022-12-14 08:07:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 796 transitions. [2022-12-14 08:07:49,260 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 796 transitions. Word has length 80 [2022-12-14 08:07:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:07:49,261 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 796 transitions. [2022-12-14 08:07:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 08:07:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 796 transitions. [2022-12-14 08:07:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 08:07:49,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:07:49,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:07:49,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:07:49,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:07:49,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:07:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:07:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash 151466231, now seen corresponding path program 1 times [2022-12-14 08:07:49,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:07:49,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518417183] [2022-12-14 08:07:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:07:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:07:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:07:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:07:49,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:07:49,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518417183] [2022-12-14 08:07:49,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518417183] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:07:49,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741901697] [2022-12-14 08:07:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:07:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:07:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:07:49,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:07:49,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:07:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:07:49,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:07:49,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:07:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:07:49,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:07:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 08:07:49,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741901697] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:07:49,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1973512717] [2022-12-14 08:07:49,741 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 08:07:49,741 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:07:49,742 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:07:49,742 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:07:49,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:08:34,042 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:08:34,329 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:08:34,614 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 486 for LOIs [2022-12-14 08:09:10,334 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 08:09:10,633 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 484 for LOIs [2022-12-14 08:09:21,741 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 442 for LOIs [2022-12-14 08:09:22,049 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 250 for LOIs [2022-12-14 08:09:22,117 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 255 for LOIs [2022-12-14 08:09:22,163 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 456 for LOIs [2022-12-14 08:09:22,786 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:10:28,888 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 570 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:11:54,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1973512717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:54,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:11:54,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-12-14 08:11:54,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229874008] [2022-12-14 08:11:54,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:54,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 08:11:54,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 08:11:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3457, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 08:11:54,469 INFO L87 Difference]: Start difference. First operand 534 states and 796 transitions. Second operand has 56 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 37 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:12:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:12:43,699 INFO L93 Difference]: Finished difference Result 965 states and 1470 transitions. [2022-12-14 08:12:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 08:12:43,700 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 37 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 79 [2022-12-14 08:12:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:12:43,702 INFO L225 Difference]: With dead ends: 965 [2022-12-14 08:12:43,702 INFO L226 Difference]: Without dead ends: 638 [2022-12-14 08:12:43,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 181.7s TimeCoverageRelationStatistics Valid=315, Invalid=4655, Unknown=0, NotChecked=0, Total=4970 [2022-12-14 08:12:43,704 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 175 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 6342 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 6361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:12:43,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 5814 Invalid, 6361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 6342 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-12-14 08:12:43,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-12-14 08:12:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 558. [2022-12-14 08:12:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 421 states have (on average 1.496437054631829) internal successors, (630), 426 states have internal predecessors, (630), 103 states have call successors, (103), 35 states have call predecessors, (103), 33 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2022-12-14 08:12:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 835 transitions. [2022-12-14 08:12:44,167 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 835 transitions. Word has length 79 [2022-12-14 08:12:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:12:44,167 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 835 transitions. [2022-12-14 08:12:44,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 37 states have internal predecessors, (45), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:12:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 835 transitions. [2022-12-14 08:12:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 08:12:44,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:12:44,169 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:12:44,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 08:12:44,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 08:12:44,371 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:12:44,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:12:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash -83792399, now seen corresponding path program 1 times [2022-12-14 08:12:44,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:12:44,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574035838] [2022-12-14 08:12:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:44,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:12:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:12:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:12:44,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:12:44,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574035838] [2022-12-14 08:12:44,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574035838] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:12:44,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406643812] [2022-12-14 08:12:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:44,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:12:44,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:12:44,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:12:44,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbeda7a4-9b7b-4e03-84da-0dfbf985879e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:12:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:12:44,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:12:44,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:12:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:12:44,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:12:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:12:44,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406643812] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:12:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [170644098] [2022-12-14 08:12:44,757 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 08:12:44,757 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:12:44,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:12:44,758 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:12:44,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs