./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI --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 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 --- 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-5e519f3 [2022-11-03 02:32:31,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:32:31,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:32:31,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:32:31,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:32:31,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:32:31,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:32:31,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:32:31,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:32:31,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:32:31,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:32:31,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:32:31,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:32:31,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:32:31,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:32:31,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:32:31,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:32:31,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:32:31,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:32:31,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:32:31,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:32:31,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:32:31,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:32:31,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:32:31,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:32:31,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:32:31,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:32:31,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:32:31,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:32:31,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:32:31,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:32:31,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:32:31,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:32:31,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:32:31,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:32:31,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:32:31,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:32:31,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:32:31,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:32:31,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:32:31,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:32:31,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:32:31,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:32:31,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:32:31,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:32:31,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:32:31,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:32:31,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:32:31,613 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:32:31,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:32:31,614 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:32:31,614 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:32:31,615 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:32:31,615 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:32:31,615 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:32:31,615 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:32:31,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:32:31,616 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:32:31,616 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:32:31,616 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:32:31,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:32:31,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:32:31,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:32:31,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:32:31,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:32:31,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:32:31,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:32:31,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:32:31,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:32:31,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:32:31,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:32:31,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:32:31,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:32:31,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:32:31,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:31,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:32:31,626 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:32:31,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:32:31,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:32:31,627 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:32:31,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:32:31,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:32:31,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:32:31,628 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_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 [2022-11-03 02:32:31,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:32:31,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:32:31,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:32:31,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:32:31,949 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:32:31,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2022-11-03 02:32:32,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/data/f7452fd6a/1c88c1bdc0c54889a67d89833dea0d34/FLAG0876ffd8d [2022-11-03 02:32:32,640 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:32:32,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2022-11-03 02:32:32,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/data/f7452fd6a/1c88c1bdc0c54889a67d89833dea0d34/FLAG0876ffd8d [2022-11-03 02:32:32,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/data/f7452fd6a/1c88c1bdc0c54889a67d89833dea0d34 [2022-11-03 02:32:32,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:32:32,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:32:32,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:32,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:32:32,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:32:32,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:32" (1/1) ... [2022-11-03 02:32:32,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ffc0d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:32, skipping insertion in model container [2022-11-03 02:32:32,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:32" (1/1) ... [2022-11-03 02:32:32,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:32:32,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:32:33,440 WARN L230 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_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2022-11-03 02:32:33,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:33,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:32:33,570 WARN L230 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_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2022-11-03 02:32:33,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:33,644 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:32:33,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33 WrapperNode [2022-11-03 02:32:33,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:33,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:33,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:32:33,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:32:33,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,761 INFO L138 Inliner]: procedures = 131, calls = 227, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 925 [2022-11-03 02:32:33,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:33,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:32:33,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:32:33,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:32:33,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:32:33,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:32:33,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:32:33,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:32:33,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (1/1) ... [2022-11-03 02:32:33,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:33,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:33,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:32:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:32:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 02:32:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 02:32:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 02:32:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 02:32:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:32:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:32:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 02:32:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 02:32:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:32:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:32:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:32:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:32:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:32:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:32:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 02:32:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 02:32:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:32:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:32:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:32:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:32:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 02:32:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 02:32:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:32:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:32:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:32:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 02:32:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 02:32:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:32:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:32:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:32:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 02:32:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 02:32:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 02:32:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 02:32:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 02:32:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 02:32:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:32:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:32:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:32:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:32:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:32:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:32:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 02:32:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 02:32:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 02:32:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 02:32:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:32:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:32:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:32:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:32:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:32:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:32:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 02:32:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 02:32:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:32:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:32:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:32:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 02:32:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 02:32:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:32:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:32:34,174 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:32:34,177 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:32:35,328 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:32:35,965 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:32:35,965 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:32:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:35 BoogieIcfgContainer [2022-11-03 02:32:35,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:32:35,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:32:35,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:32:35,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:32:35,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:32:32" (1/3) ... [2022-11-03 02:32:35,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749a6fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:35, skipping insertion in model container [2022-11-03 02:32:35,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:33" (2/3) ... [2022-11-03 02:32:35,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749a6fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:35, skipping insertion in model container [2022-11-03 02:32:35,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:35" (3/3) ... [2022-11-03 02:32:35,982 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2022-11-03 02:32:36,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:32:36,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:32:36,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:32:36,086 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;@7bed98d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:32:36,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:32:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-03 02:32:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 02:32:36,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:36,104 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:36,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2091724772, now seen corresponding path program 1 times [2022-11-03 02:32:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:36,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894905871] [2022-11-03 02:32:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:36,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:36,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894905871] [2022-11-03 02:32:36,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894905871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:36,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:36,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:32:36,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890973622] [2022-11-03 02:32:36,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:36,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:32:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:36,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:32:36,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:32:36,660 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:36,802 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-11-03 02:32:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:32:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-11-03 02:32:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:36,827 INFO L225 Difference]: With dead ends: 334 [2022-11-03 02:32:36,828 INFO L226 Difference]: Without dead ends: 210 [2022-11-03 02:32:36,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:32:36,841 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:36,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-03 02:32:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-03 02:32:36,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-03 02:32:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-11-03 02:32:36,944 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 75 [2022-11-03 02:32:36,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:36,946 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-11-03 02:32:36,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-11-03 02:32:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 02:32:36,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:36,960 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] [2022-11-03 02:32:36,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:32:36,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:36,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:36,961 INFO L85 PathProgramCache]: Analyzing trace with hash 417847008, now seen corresponding path program 1 times [2022-11-03 02:32:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:36,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48514593] [2022-11-03 02:32:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:36,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:37,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:37,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48514593] [2022-11-03 02:32:37,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48514593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:37,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:37,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:37,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164172246] [2022-11-03 02:32:37,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:37,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:37,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:37,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:37,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:37,248 INFO L87 Difference]: Start difference. First operand 210 states and 276 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:37,470 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-11-03 02:32:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:32:37,471 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-03 02:32:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:37,476 INFO L225 Difference]: With dead ends: 330 [2022-11-03 02:32:37,478 INFO L226 Difference]: Without dead ends: 212 [2022-11-03 02:32:37,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:37,482 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:37,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:37,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-03 02:32:37,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-03 02:32:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-03 02:32:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-11-03 02:32:37,503 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 76 [2022-11-03 02:32:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:37,503 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-11-03 02:32:37,504 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-11-03 02:32:37,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:32:37,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:37,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:37,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:32:37,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:37,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1931427946, now seen corresponding path program 1 times [2022-11-03 02:32:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:37,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776207959] [2022-11-03 02:32:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:37,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:37,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776207959] [2022-11-03 02:32:37,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776207959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:37,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:37,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:37,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830004549] [2022-11-03 02:32:37,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:37,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:37,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:37,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:37,664 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:37,784 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-11-03 02:32:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:32:37,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-11-03 02:32:37,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:37,787 INFO L225 Difference]: With dead ends: 459 [2022-11-03 02:32:37,787 INFO L226 Difference]: Without dead ends: 265 [2022-11-03 02:32:37,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:37,789 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 59 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:37,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 490 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-03 02:32:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-11-03 02:32:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 02:32:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-11-03 02:32:37,813 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 81 [2022-11-03 02:32:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:37,813 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-11-03 02:32:37,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:32:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-11-03 02:32:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 02:32:37,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:37,816 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:37,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:32:37,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:37,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1546386723, now seen corresponding path program 1 times [2022-11-03 02:32:37,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:37,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167465555] [2022-11-03 02:32:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:37,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:38,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:38,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167465555] [2022-11-03 02:32:38,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167465555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:38,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839044818] [2022-11-03 02:32:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:38,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:38,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:38,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:32:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:38,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:32:38,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:38,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:32:38,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839044818] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:38,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293191786] [2022-11-03 02:32:38,736 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-03 02:32:38,736 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:38,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:38,746 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:38,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:14,543 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:33:14,864 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 474 for LOIs [2022-11-03 02:33:49,207 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-11-03 02:33:49,492 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:33:49,775 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 472 for LOIs [2022-11-03 02:33:55,940 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 260 for LOIs [2022-11-03 02:34:05,655 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 439 for LOIs [2022-11-03 02:34:05,974 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 243 for LOIs [2022-11-03 02:34:06,038 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-11-03 02:34:06,074 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-11-03 02:34:06,759 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 245 for LOIs [2022-11-03 02:34:06,802 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 248 for LOIs [2022-11-03 02:34:06,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:13,228 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 546 DAG size of output: 386 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:51,773 WARN L234 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 492 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:57,861 WARN L234 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 504 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:05,476 WARN L234 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 514 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:23,669 WARN L234 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 569 DAG size of output: 373 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:30,678 WARN L234 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 567 DAG size of output: 371 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:37,820 WARN L234 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 571 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:03,716 WARN L234 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 530 DAG size of output: 331 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:19,085 WARN L234 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 526 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:30,870 WARN L234 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 472 DAG size of output: 336 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:37,222 WARN L234 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 484 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:37:45,611 WARN L234 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 546 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:37:53,650 WARN L234 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 549 DAG size of output: 401 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:37:53,657 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3624#(and (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~msg#1| 1) (= ~__ste_client_privateKey0~0 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp~14#1|) (<= 1 |outgoing__wrappee__Encrypt_mail_#in~msg#1|) (= ~__GUIDSL_NON_TERMINAL_main~0 0) (<= |old(~__ste_email_isEncrypted1~0)| 0) (<= 0 ~__ste_email_encryptionKey1~0) (= ~__SELECTED_FEATURE_Sign~0 0) (= ~__ste_client_outbuffer3~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1| 1) (= ~__ste_Client_counter~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~client#1| 1) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~client#1|) (<= |outgoing__wrappee__Encrypt_~receiver~0#1| 2) (<= |old(~__ste_email_encryptionKey0~0)| 0) (<= ~__ste_email_encryptionKey1~0 0) (<= |outgoing__wrappee__Encrypt_mail_#in~msg#1| 1) (<= ~__ste_email_isSignatureVerified1~0 0) (= ~__ste_client_autoResponse1~0 0) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= |outgoing__wrappee__Encrypt_~pubkey~0#1| 0) (= ~__ste_Client_AddressBook2_Alias1~0 0) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~client#1|) (<= |outgoing__wrappee__Encrypt_#in~client#1| 1) (= ~__ste_client_name2~0.offset 0) (<= 0 |old(~__ste_email_encryptionKey1~0)|) (= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp~14#1| 0) (<= |outgoing__wrappee__Encrypt_mail_~msg#1| 1) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~msg#1|) (<= ~__ste_client_idCounter2~0 3) (<= |old(~__ste_email_from0~0)| 0) (<= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_email_body1~0.offset 0) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~msg#1|) (<= ~__ste_email_from0~0 2147483647) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_email_body0~0.offset 0) (<= 1 |outgoing__wrappee__Encrypt_~client#1|) (<= 0 ~__ste_email_isSigned1~0) (<= 0 (+ ~__ste_email_from0~0 2147483648)) (= ~__ste_Client_Keyring0_User2~0 0) (= ~__ste_ClientAddressBook_size0~0 0) (<= |old(~__ste_email_isEncrypted0~0)| 0) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= ~__ste_client_name1~0.offset 0) (= ~head~0.offset 0) (<= |outgoing__wrappee__Encrypt_getClientId_~retValue_acc~24#1| 2147483647) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~client#1|) (<= |outgoing__wrappee__Encrypt_mail_~client#1| 1) (<= ~__ste_client_privateKey2~0 789) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= 0 |old(~__ste_email_encryptionKey0~0)|) (<= ~queue_empty~0 1) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= 0 ~__ste_Client_Keyring1_User2~0) (<= 0 |old(~__ste_email_isEncrypted0~0)|) (<= 0 (+ ~__ste_email_signKey0~0 2147483648)) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~16#1| 2147483647) (<= 0 ~__ste_email_isEncrypted1~0) (= ~__SELECTED_FEATURE_Keys~0 0) (<= ~__ste_email_signKey0~0 2147483647) (<= 0 |old(~__ste_email_from0~0)|) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~client#1| 1) (<= |#NULL.offset| 0) (<= 0 ~__ste_Client_Keyring1_User0~0) (<= 0 ~__SELECTED_FEATURE_AddressBook~0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (= ~__SELECTED_FEATURE_Forward~0 0) (<= 0 ~__ste_email_isEncrypted0~0) (= ~__ste_Client_Keyring0_User0~0 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~client#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~16#1| 2147483648)) (<= ~__ste_client_idCounter0~0 2147483647) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (<= 0 ~__ste_email_id1~0) (<= ~__ste_Client_AddressBook0_Address1~0 0) (= ~__ste_email_body0~0.base 0) (<= ~__ste_email_isSigned0~0 1) (<= ~__ste_email_isEncrypted0~0 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (<= |outgoing__wrappee__Encrypt_~client#1| 1) (<= 0 ~__ste_Client_AddressBook2_Address1~0) (<= 0 ~__ste_client_name0~0.offset) (<= 1 |outgoing__wrappee__Encrypt_#in~client#1|) (<= ~__ste_Client_Keyring0_PublicKey0~0 0) (<= ~__ste_client_name1~0.base 0) (= ~__ste_email_id0~0 0) (<= ~__ste_client_autoResponse0~0 0) (<= ~__SELECTED_FEATURE_AddressBook~0 0) (<= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= 0 ~__ste_Client_Keyring0_PublicKey0~0) (<= ~__ste_client_forwardReceiver3~0 0) (<= 3 ~__ste_client_idCounter2~0) (= ~__ste_Client_AddressBook2_Address2~0 0) (<= 0 ~__ste_Client_Keyring1_PublicKey2~0) (<= |outgoing__wrappee__Encrypt_getClientId_~handle#1| 1) (<= ~__ste_Client_AddressBook0_Address0~0 0) (<= |outgoing__wrappee__Encrypt_~msg#1| 1) (<= 0 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1|) (= 3 ~chuck~0) (<= |outgoing__wrappee__Encrypt_~tmp___0~7#1| 0) (<= 0 ~__ste_email_signKey1~0) (<= 1 ~queue_empty~0) (<= ~__ste_email_signKey1~0 0) (<= 0 ~__ste_client_forwardReceiver3~0) (<= ~__ste_email_isSigned1~0 0) (<= ~__ste_email_subject0~0.offset 0) (<= 0 ~__ste_client_autoResponse0~0) (<= |outgoing__wrappee__Encrypt_getClientId_#in~handle#1| 1) (<= 1 |outgoing__wrappee__Encrypt_getClientId_#in~handle#1|) (<= 0 ~__ste_Client_AddressBook0_Alias2~0) (<= 0 |old(~__ste_email_isSignatureVerified0~0)|) (<= 0 ~__ste_email_isSignatureVerified1~0) (<= 1 |outgoing__wrappee__Encrypt_#in~msg#1|) (= ~__ste_client_outbuffer0~0 0) (<= 789 ~__ste_client_privateKey2~0) (<= ~__SELECTED_FEATURE_Verify~0 0) (<= ~__ste_ClientKeyring_size1~0 0) (<= ~__ste_Client_Keyring1_User2~0 0) (<= |outgoing__wrappee__Encrypt_#in~msg#1| 1) (<= 0 ~head~0.base) (<= 0 |old(~__ste_email_isEncrypted1~0)|) (= ~__SELECTED_FEATURE_Base~0 0) (<= ~__ste_Client_AddressBook1_Alias2~0 0) (<= 2 |outgoing__wrappee__Encrypt_~receiver~0#1|) (<= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_forwardReceiver0~0 0) (= ~__ste_Client_Keyring2_User0~0 0) (<= 0 ~__ste_email_subject0~0.offset) (= ~rjh~0 2) (<= 0 ~__ste_Client_AddressBook1_Alias0~0) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (<= 0 ~queued_client~0) (<= ~__ste_Client_AddressBook1_Alias0~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~msg#1|) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (<= 0 ~__ste_email_isSignatureVerified0~0) (= ~__ste_Client_AddressBook1_Address0~0 0) (<= 0 ~__ste_ClientKeyring_size1~0) (<= 0 ~__ste_client_forwardReceiver2~0) (= ~__ste_client_name2~0.base 0) (<= 0 ~__ste_Client_AddressBook0_Address1~0) (<= 1 |outgoing__wrappee__Encrypt_~msg#1|) (<= ~__ste_email_encryptionKey0~0 0) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~msg#1|) (<= |old(~__ste_email_encryptionKey1~0)| 0) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1| 1) (= ~__ste_email_subject1~0.base 0) (<= ~__ste_ClientKeyring_size0~0 0) (<= ~__ste_email_id1~0 0) (<= 0 ~__ste_Client_AddressBook0_Address0~0) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1|) (<= ~__ste_Client_Keyring1_User0~0 0) (<= ~__ste_Client_AddressBook0_Alias2~0 0) (<= 1 |outgoing__wrappee__Encrypt_getClientId_~handle#1|) (<= ~__ste_Client_AddressBook0_Address2~0 0) (= ~__ste_Client_Keyring2_User2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg2~0#1|) (<= ~head~0.base 0) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~client#1| 1) (<= ~__ste_client_forwardReceiver1~0 0) (= ~__ste_Client_Keyring1_User1~0 0) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~msg#1| 1) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= 1 |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg1~0#1|) (<= 1 |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~client#1|) (<= ~__ste_Client_Keyring2_User1~0 0) (<= 0 ~__ste_email_isSigned0~0) (<= 0 ~__SELECTED_FEATURE_Verify~0) (<= 1 |outgoing__wrappee__Encrypt_mail_#in~client#1|) (<= 0 ~__ste_Client_AddressBook1_Alias2~0) (<= 0 ~__ste_client_autoResponse2~0) (= ~__ste_email_subject1~0.offset 0) (<= |outgoing__wrappee__Encrypt_~tmp~17#1| 2) (<= |outgoing__wrappee__Encrypt_mail_#in~client#1| 1) (<= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~msg#1| 1) (<= 0 ~__ste_Client_Keyring2_User1~0) (<= 2 |outgoing__wrappee__Encrypt_~tmp~17#1|) (= ~queued_message~0 0) (= ~__ste_Client_AddressBook1_Address1~0 0) (not (= |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~6#1| 0)) (<= 1 |outgoing__wrappee__Encrypt___utac_acc__SignForward_spec__1_#in~client#1|) (<= ~__ste_client_name0~0.offset 0) (= ~__ste_client_outbuffer1~0 0) (= ~__ste_Client_AddressBook0_Alias1~0 0) (<= 0 ~__ste_ClientKeyring_size0~0) (<= ~__ste_email_isEncrypted1~0 0) (<= |old(~__ste_email_isSignatureVerified0~0)| 0) (= ~__GUIDSL_ROOT_PRODUCTION~0 0) (<= 0 |#NULL.offset|) (<= |old(~__ste_email_isSignatureVerified1~0)| 0) (<= 0 (+ |outgoing__wrappee__Encrypt_getClientId_~retValue_acc~24#1| 2147483648)) (<= 0 ~__ste_client_forwardReceiver1~0) (= ~__ste_client_name0~0.base 0) (<= 0 (+ |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483648)) (<= |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg1~0#1| 1) (<= 0 |old(~__ste_email_isSignatureVerified1~0)|) (<= ~__ste_Client_AddressBook2_Address1~0 0) (= ~__ste_client_outbuffer2~0 0) (<= ~bob~0 1) (<= 0 (+ ~__ste_client_idCounter0~0 2147483648)) (<= ~__ste_client_forwardReceiver2~0 0) (<= 2 ~__ste_email_to0~0) (<= 0 |#StackHeapBarrier|) (<= ~__ste_email_to0~0 2) (<= |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg2~0#1| 1) (= ~__ste_ClientAddressBook_size2~0 0) (= ~__SELECTED_FEATURE_AutoResponder~0 0) (<= ~__ste_client_autoResponse2~0 0) (= ~__ste_email_body1~0.base 0) (<= 1 ~bob~0) (= ~__ste_ClientKeyring_size2~0 0) (<= 0 ~__ste_client_name1~0.base) (<= 0 |outgoing__wrappee__Encrypt_~tmp___0~7#1|) (<= 0 ~__ste_email_encryptionKey0~0) (= |#NULL.base| 0) (<= |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483647) (<= ~queued_client~0 0))' at error location [2022-11-03 02:37:53,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:53,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:37:53,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-03 02:37:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051376280] [2022-11-03 02:37:53,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:53,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:37:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:37:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=4354, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:37:53,663 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:37:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:54,106 INFO L93 Difference]: Finished difference Result 653 states and 972 transitions. [2022-11-03 02:37:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:37:54,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2022-11-03 02:37:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:54,112 INFO L225 Difference]: With dead ends: 653 [2022-11-03 02:37:54,113 INFO L226 Difference]: Without dead ends: 535 [2022-11-03 02:37:54,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 226.7s TimeCoverageRelationStatistics Valid=202, Invalid=4354, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:37:54,117 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 223 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:54,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1173 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:37:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-03 02:37:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 520. [2022-11-03 02:37:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 335 states have (on average 1.4746268656716417) internal successors, (494), 339 states have internal predecessors, (494), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2022-11-03 02:37:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 805 transitions. [2022-11-03 02:37:54,153 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 805 transitions. Word has length 82 [2022-11-03 02:37:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 805 transitions. [2022-11-03 02:37:54,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:37:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 805 transitions. [2022-11-03 02:37:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 02:37:54,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:54,157 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:54,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:54,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f60c77-2fb2-4ef1-acc9-8c1673b1842d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:54,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash -306453984, now seen corresponding path program 1 times [2022-11-03 02:37:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:54,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777041394] [2022-11-03 02:37:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:54,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:54,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777041394] [2022-11-03 02:37:54,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777041394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:54,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:54,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:54,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119280077] [2022-11-03 02:37:54,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:54,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:54,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:54,477 INFO L87 Difference]: Start difference. First operand 520 states and 805 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:54,610 INFO L93 Difference]: Finished difference Result 1270 states and 2008 transitions. [2022-11-03 02:37:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:54,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 88 [2022-11-03 02:37:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:54,620 INFO L225 Difference]: With dead ends: 1270 [2022-11-03 02:37:54,620 INFO L226 Difference]: Without dead ends: 782 [2022-11-03 02:37:54,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:54,623 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 57 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:54,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 495 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-11-03 02:37:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 777. [2022-11-03 02:37:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 513 states have (on average 1.4951267056530215) internal successors, (767), 517 states have internal predecessors, (767), 235 states have call successors, (235), 28 states have call predecessors, (235), 28 states have return successors, (234), 233 states have call predecessors, (234), 234 states have call successors, (234) [2022-11-03 02:37:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1236 transitions. [2022-11-03 02:37:54,701 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1236 transitions. Word has length 88 [2022-11-03 02:37:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:54,702 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1236 transitions. [2022-11-03 02:37:54,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1236 transitions. [2022-11-03 02:37:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 02:37:54,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:54,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:54,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:37:54,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:54,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:54,707 INFO L85 PathProgramCache]: Analyzing trace with hash -882271146, now seen corresponding path program 1 times [2022-11-03 02:37:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:54,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639478718] [2022-11-03 02:37:54,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:54,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:54,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:54,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639478718] [2022-11-03 02:37:54,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639478718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:54,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:54,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452845305] [2022-11-03 02:37:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:54,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:54,822 INFO L87 Difference]: Start difference. First operand 777 states and 1236 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:55,005 INFO L93 Difference]: Finished difference Result 1892 states and 3055 transitions. [2022-11-03 02:37:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-11-03 02:37:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:55,012 INFO L225 Difference]: With dead ends: 1892 [2022-11-03 02:37:55,013 INFO L226 Difference]: Without dead ends: 1177 [2022-11-03 02:37:55,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:55,016 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 55 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:55,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 488 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:55,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-11-03 02:37:55,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1172. [2022-11-03 02:37:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 789 states have (on average 1.5044359949302915) internal successors, (1187), 793 states have internal predecessors, (1187), 354 states have call successors, (354), 28 states have call predecessors, (354), 28 states have return successors, (353), 352 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-03 02:37:55,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1894 transitions. [2022-11-03 02:37:55,096 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1894 transitions. Word has length 89 [2022-11-03 02:37:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:55,097 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1894 transitions. [2022-11-03 02:37:55,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1894 transitions. [2022-11-03 02:37:55,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-03 02:37:55,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:55,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:55,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:37:55,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1830742594, now seen corresponding path program 1 times [2022-11-03 02:37:55,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:55,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287998421] [2022-11-03 02:37:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:55,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:55,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:55,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287998421] [2022-11-03 02:37:55,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287998421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:55,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:55,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:55,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483910078] [2022-11-03 02:37:55,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:55,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:55,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:55,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:55,212 INFO L87 Difference]: Start difference. First operand 1172 states and 1894 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:55,398 INFO L93 Difference]: Finished difference Result 2795 states and 4567 transitions. [2022-11-03 02:37:55,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:55,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 90 [2022-11-03 02:37:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:55,410 INFO L225 Difference]: With dead ends: 2795 [2022-11-03 02:37:55,410 INFO L226 Difference]: Without dead ends: 1765 [2022-11-03 02:37:55,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:55,416 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 53 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:55,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 485 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:55,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2022-11-03 02:37:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1760. [2022-11-03 02:37:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1215 states have (on average 1.5102880658436213) internal successors, (1835), 1219 states have internal predecessors, (1835), 516 states have call successors, (516), 28 states have call predecessors, (516), 28 states have return successors, (515), 514 states have call predecessors, (515), 515 states have call successors, (515) [2022-11-03 02:37:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2866 transitions. [2022-11-03 02:37:55,537 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2866 transitions. Word has length 90 [2022-11-03 02:37:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:55,537 INFO L495 AbstractCegarLoop]: Abstraction has 1760 states and 2866 transitions. [2022-11-03 02:37:55,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2866 transitions. [2022-11-03 02:37:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 02:37:55,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:55,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:55,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:37:55,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash -873329131, now seen corresponding path program 1 times [2022-11-03 02:37:55,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:55,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494462877] [2022-11-03 02:37:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:55,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:55,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494462877] [2022-11-03 02:37:55,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494462877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:55,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:55,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342064133] [2022-11-03 02:37:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:55,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:55,634 INFO L87 Difference]: Start difference. First operand 1760 states and 2866 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:55,872 INFO L93 Difference]: Finished difference Result 4180 states and 6875 transitions. [2022-11-03 02:37:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:55,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 91 [2022-11-03 02:37:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:55,889 INFO L225 Difference]: With dead ends: 4180 [2022-11-03 02:37:55,890 INFO L226 Difference]: Without dead ends: 2699 [2022-11-03 02:37:55,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:55,896 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 51 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:55,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 483 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2022-11-03 02:37:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2694. [2022-11-03 02:37:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 1904 states have (on average 1.5131302521008403) internal successors, (2881), 1908 states have internal predecessors, (2881), 761 states have call successors, (761), 28 states have call predecessors, (761), 28 states have return successors, (760), 759 states have call predecessors, (760), 760 states have call successors, (760) [2022-11-03 02:37:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4402 transitions. [2022-11-03 02:37:56,133 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4402 transitions. Word has length 91 [2022-11-03 02:37:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:56,135 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 4402 transitions. [2022-11-03 02:37:56,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4402 transitions. [2022-11-03 02:37:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 02:37:56,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:56,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:56,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:37:56,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:56,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1335354114, now seen corresponding path program 1 times [2022-11-03 02:37:56,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:56,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131591416] [2022-11-03 02:37:56,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:56,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:56,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131591416] [2022-11-03 02:37:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131591416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:56,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:56,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382101312] [2022-11-03 02:37:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:56,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:56,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:56,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:56,249 INFO L87 Difference]: Start difference. First operand 2694 states and 4402 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:56,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:56,585 INFO L93 Difference]: Finished difference Result 6696 states and 11035 transitions. [2022-11-03 02:37:56,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:56,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2022-11-03 02:37:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:56,611 INFO L225 Difference]: With dead ends: 6696 [2022-11-03 02:37:56,611 INFO L226 Difference]: Without dead ends: 4424 [2022-11-03 02:37:56,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:56,621 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 49 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:56,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 499 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4424 states. [2022-11-03 02:37:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4424 to 4419. [2022-11-03 02:37:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 3136 states have (on average 1.503188775510204) internal successors, (4714), 3140 states have internal predecessors, (4714), 1254 states have call successors, (1254), 28 states have call predecessors, (1254), 28 states have return successors, (1253), 1252 states have call predecessors, (1253), 1253 states have call successors, (1253) [2022-11-03 02:37:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 7221 transitions. [2022-11-03 02:37:56,986 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 7221 transitions. Word has length 92 [2022-11-03 02:37:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:56,987 INFO L495 AbstractCegarLoop]: Abstraction has 4419 states and 7221 transitions. [2022-11-03 02:37:56,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 7221 transitions. [2022-11-03 02:37:57,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:37:57,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:57,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:57,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:37:57,004 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:57,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash 614534353, now seen corresponding path program 1 times [2022-11-03 02:37:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:57,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518118834] [2022-11-03 02:37:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:57,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:57,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:57,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518118834] [2022-11-03 02:37:57,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518118834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:57,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:57,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749617660] [2022-11-03 02:37:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:57,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:57,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:57,087 INFO L87 Difference]: Start difference. First operand 4419 states and 7221 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:57,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:57,606 INFO L93 Difference]: Finished difference Result 11112 states and 18320 transitions. [2022-11-03 02:37:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:57,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-11-03 02:37:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:57,650 INFO L225 Difference]: With dead ends: 11112 [2022-11-03 02:37:57,650 INFO L226 Difference]: Without dead ends: 7381 [2022-11-03 02:37:57,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:57,662 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:57,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 490 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:57,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-11-03 02:37:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 7376. [2022-11-03 02:37:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7376 states, 5271 states have (on average 1.4985771200910643) internal successors, (7899), 5275 states have internal predecessors, (7899), 2076 states have call successors, (2076), 28 states have call predecessors, (2076), 28 states have return successors, (2075), 2074 states have call predecessors, (2075), 2075 states have call successors, (2075) [2022-11-03 02:37:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 12050 transitions. [2022-11-03 02:37:58,285 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 12050 transitions. Word has length 93 [2022-11-03 02:37:58,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:58,286 INFO L495 AbstractCegarLoop]: Abstraction has 7376 states and 12050 transitions. [2022-11-03 02:37:58,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 12050 transitions. [2022-11-03 02:37:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 02:37:58,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:58,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:58,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:37:58,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1248864448, now seen corresponding path program 1 times [2022-11-03 02:37:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635437687] [2022-11-03 02:37:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:37:58,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:58,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635437687] [2022-11-03 02:37:58,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635437687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:37:58,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:37:58,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:37:58,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603331722] [2022-11-03 02:37:58,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:37:58,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:37:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:37:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:58,391 INFO L87 Difference]: Start difference. First operand 7376 states and 12050 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:37:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:59,253 INFO L93 Difference]: Finished difference Result 18579 states and 30582 transitions. [2022-11-03 02:37:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:37:59,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2022-11-03 02:37:59,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:59,316 INFO L225 Difference]: With dead ends: 18579 [2022-11-03 02:37:59,316 INFO L226 Difference]: Without dead ends: 12325 [2022-11-03 02:37:59,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:37:59,339 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 45 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:59,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 486 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12325 states. [2022-11-03 02:38:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12325 to 12320. [2022-11-03 02:38:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 9012 states have (on average 1.5002219263204617) internal successors, (13520), 9016 states have internal predecessors, (13520), 3279 states have call successors, (3279), 28 states have call predecessors, (3279), 28 states have return successors, (3278), 3277 states have call predecessors, (3278), 3278 states have call successors, (3278) [2022-11-03 02:38:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 20077 transitions. [2022-11-03 02:38:00,424 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 20077 transitions. Word has length 94 [2022-11-03 02:38:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:00,424 INFO L495 AbstractCegarLoop]: Abstraction has 12320 states and 20077 transitions. [2022-11-03 02:38:00,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 20077 transitions. [2022-11-03 02:38:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-03 02:38:00,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:00,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:00,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:38:00,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:00,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1355024112, now seen corresponding path program 1 times [2022-11-03 02:38:00,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:00,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322060315] [2022-11-03 02:38:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:00,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:38:00,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:00,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322060315] [2022-11-03 02:38:00,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322060315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:00,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:00,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972168463] [2022-11-03 02:38:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:00,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:00,552 INFO L87 Difference]: Start difference. First operand 12320 states and 20077 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:02,189 INFO L93 Difference]: Finished difference Result 32583 states and 53444 transitions. [2022-11-03 02:38:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:02,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2022-11-03 02:38:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:02,296 INFO L225 Difference]: With dead ends: 32583 [2022-11-03 02:38:02,296 INFO L226 Difference]: Without dead ends: 21837 [2022-11-03 02:38:02,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:02,341 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 43 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:02,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 490 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:38:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21837 states. [2022-11-03 02:38:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21837 to 21832. [2022-11-03 02:38:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21832 states, 16074 states have (on average 1.4926589523454026) internal successors, (23993), 16078 states have internal predecessors, (23993), 5729 states have call successors, (5729), 28 states have call predecessors, (5729), 28 states have return successors, (5728), 5727 states have call predecessors, (5728), 5728 states have call successors, (5728) [2022-11-03 02:38:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21832 states to 21832 states and 35450 transitions. [2022-11-03 02:38:04,317 INFO L78 Accepts]: Start accepts. Automaton has 21832 states and 35450 transitions. Word has length 95 [2022-11-03 02:38:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:04,318 INFO L495 AbstractCegarLoop]: Abstraction has 21832 states and 35450 transitions. [2022-11-03 02:38:04,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 21832 states and 35450 transitions. [2022-11-03 02:38:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 02:38:04,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:04,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:04,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:38:04,360 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1383184794, now seen corresponding path program 1 times [2022-11-03 02:38:04,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:04,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812240770] [2022-11-03 02:38:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:04,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:38:04,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:04,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812240770] [2022-11-03 02:38:04,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812240770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:04,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:04,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863487153] [2022-11-03 02:38:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:04,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:04,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:04,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:04,461 INFO L87 Difference]: Start difference. First operand 21832 states and 35450 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:07,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:07,284 INFO L93 Difference]: Finished difference Result 59270 states and 96696 transitions. [2022-11-03 02:38:07,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:07,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2022-11-03 02:38:07,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:07,460 INFO L225 Difference]: With dead ends: 59270 [2022-11-03 02:38:07,461 INFO L226 Difference]: Without dead ends: 39607 [2022-11-03 02:38:07,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:07,514 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 41 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:07,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:38:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39607 states. [2022-11-03 02:38:10,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39607 to 39602. [2022-11-03 02:38:10,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39602 states, 29331 states have (on average 1.4820156148784562) internal successors, (43469), 29335 states have internal predecessors, (43469), 10242 states have call successors, (10242), 28 states have call predecessors, (10242), 28 states have return successors, (10241), 10240 states have call predecessors, (10241), 10241 states have call successors, (10241) [2022-11-03 02:38:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39602 states to 39602 states and 63952 transitions. [2022-11-03 02:38:11,301 INFO L78 Accepts]: Start accepts. Automaton has 39602 states and 63952 transitions. Word has length 96 [2022-11-03 02:38:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:11,302 INFO L495 AbstractCegarLoop]: Abstraction has 39602 states and 63952 transitions. [2022-11-03 02:38:11,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 39602 states and 63952 transitions. [2022-11-03 02:38:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 02:38:11,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:11,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:11,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:38:11,348 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1202529456, now seen corresponding path program 1 times [2022-11-03 02:38:11,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:11,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177762697] [2022-11-03 02:38:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:38:11,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:11,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177762697] [2022-11-03 02:38:11,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177762697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:11,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:11,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177566276] [2022-11-03 02:38:11,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:11,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:11,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:11,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:11,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:11,446 INFO L87 Difference]: Start difference. First operand 39602 states and 63952 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:15,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:15,718 INFO L93 Difference]: Finished difference Result 73168 states and 118331 transitions. [2022-11-03 02:38:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-11-03 02:38:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:16,038 INFO L225 Difference]: With dead ends: 73168 [2022-11-03 02:38:16,038 INFO L226 Difference]: Without dead ends: 73050 [2022-11-03 02:38:16,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:16,068 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 39 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:16,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 488 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:38:16,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73050 states. [2022-11-03 02:38:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73050 to 73045. [2022-11-03 02:38:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73045 states, 54406 states have (on average 1.4680549939344925) internal successors, (79871), 54410 states have internal predecessors, (79871), 18610 states have call successors, (18610), 28 states have call predecessors, (18610), 28 states have return successors, (18609), 18608 states have call predecessors, (18609), 18609 states have call successors, (18609) [2022-11-03 02:38:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73045 states to 73045 states and 117090 transitions. [2022-11-03 02:38:21,378 INFO L78 Accepts]: Start accepts. Automaton has 73045 states and 117090 transitions. Word has length 97 [2022-11-03 02:38:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:21,379 INFO L495 AbstractCegarLoop]: Abstraction has 73045 states and 117090 transitions. [2022-11-03 02:38:21,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:38:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 73045 states and 117090 transitions. [2022-11-03 02:38:21,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 02:38:21,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:21,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:38:21,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:38:21,418 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:21,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1977489465, now seen corresponding path program 1 times [2022-11-03 02:38:21,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:21,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220322944] [2022-11-03 02:38:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:21,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:38:23,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:23,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220322944] [2022-11-03 02:38:23,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220322944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:23,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:23,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-03 02:38:23,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896262929] [2022-11-03 02:38:23,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:23,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:38:23,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:23,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:38:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:38:23,618 INFO L87 Difference]: Start difference. First operand 73045 states and 117090 transitions. Second operand has 22 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-03 02:38:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:30,901 INFO L93 Difference]: Finished difference Result 73191 states and 117312 transitions. [2022-11-03 02:38:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:38:30,901 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 98 [2022-11-03 02:38:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:31,188 INFO L225 Difference]: With dead ends: 73191 [2022-11-03 02:38:31,188 INFO L226 Difference]: Without dead ends: 73187 [2022-11-03 02:38:31,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=1151, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 02:38:31,219 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 504 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:31,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 3300 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:38:31,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73187 states.