./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product34.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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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 82e24cc91d79ad041473748268d13bac909e458d30ed1ab080cccaeb5ccb7cec --- 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 03:28:02,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:28:02,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:28:02,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:28:02,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:28:02,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:28:02,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:28:02,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:28:02,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:28:02,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:28:02,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:28:02,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:28:02,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:28:02,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:28:02,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:28:02,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:28:02,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:28:02,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:28:02,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:28:02,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:28:02,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:28:02,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:28:02,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:28:02,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:28:02,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:28:02,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:28:02,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:28:02,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:28:02,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:28:02,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:28:02,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:28:02,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:28:02,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:28:02,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:28:02,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:28:02,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:28:02,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:28:02,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:28:02,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:28:02,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:28:02,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:28:02,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:28:02,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:28:02,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:28:02,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:28:02,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:28:02,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:28:02,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:28:02,217 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:28:02,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:28:02,218 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:28:02,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:28:02,218 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:28:02,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:28:02,219 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:28:02,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:28:02,219 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:28:02,220 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:28:02,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:28:02,220 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:28:02,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:28:02,221 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:28:02,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:28:02,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:28:02,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:28:02,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:28:02,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:28:02,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:28:02,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:28:02,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:28:02,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:28:02,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:28:02,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:28:02,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:28:02,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:02,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:28:02,225 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:28:02,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:28:02,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:28:02,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:28:02,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:28:02,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:28:02,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:28:02,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e24cc91d79ad041473748268d13bac909e458d30ed1ab080cccaeb5ccb7cec [2022-11-03 03:28:02,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:28:02,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:28:02,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:28:02,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:28:02,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:28:02,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec4_product34.cil.c [2022-11-03 03:28:02,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/5a1bf049a/17a2adb4eb7f4b149f092e3c1c35e680/FLAGf3229b119 [2022-11-03 03:28:03,181 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:28:03,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c [2022-11-03 03:28:03,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/5a1bf049a/17a2adb4eb7f4b149f092e3c1c35e680/FLAGf3229b119 [2022-11-03 03:28:03,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/5a1bf049a/17a2adb4eb7f4b149f092e3c1c35e680 [2022-11-03 03:28:03,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:28:03,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:28:03,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:03,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:28:03,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:28:03,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:03" (1/1) ... [2022-11-03 03:28:03,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab9e580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:03, skipping insertion in model container [2022-11-03 03:28:03,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:03" (1/1) ... [2022-11-03 03:28:03,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:28:03,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:28:03,676 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c[1542,1555] [2022-11-03 03:28:04,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:04,227 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:28:04,239 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c[1542,1555] [2022-11-03 03:28:04,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:04,411 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:28:04,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04 WrapperNode [2022-11-03 03:28:04,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:04,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:04,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:28:04,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:28:04,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,529 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1096 [2022-11-03 03:28:04,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:04,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:28:04,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:28:04,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:28:04,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:28:04,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:28:04,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:28:04,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:28:04,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (1/1) ... [2022-11-03 03:28:04,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:04,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:04,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:28:04,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:28:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:28:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:28:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:28:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:28:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:28:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:28:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:28:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:28:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:28:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:28:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:28:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:28:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:28:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:28:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:28:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:28:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:28:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:28:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:28:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:28:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:28:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:28:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:28:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:28:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:28:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:28:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:28:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:28:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:28:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:28:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:28:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:28:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:28:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:28:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:28:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:28:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:28:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:28:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:28:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:28:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:28:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:28:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 03:28:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 03:28:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:28:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:28:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:28:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:28:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:28:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:28:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:28:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:28:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:28:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:28:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:28:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:28:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:28:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:28:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:28:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:28:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:28:05,077 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:28:05,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:28:06,274 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:28:06,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:28:06,980 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:28:06,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:06 BoogieIcfgContainer [2022-11-03 03:28:06,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:28:06,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:28:06,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:28:06,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:28:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:28:03" (1/3) ... [2022-11-03 03:28:06,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64645691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:06, skipping insertion in model container [2022-11-03 03:28:06,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:04" (2/3) ... [2022-11-03 03:28:07,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64645691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:07, skipping insertion in model container [2022-11-03 03:28:07,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:06" (3/3) ... [2022-11-03 03:28:07,002 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2022-11-03 03:28:07,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:28:07,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:28:07,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:28:07,120 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;@672fb4c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:28:07,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:28:07,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-03 03:28:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 03:28:07,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:07,154 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 03:28:07,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:07,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2085917459, now seen corresponding path program 1 times [2022-11-03 03:28:07,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:07,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010757530] [2022-11-03 03:28:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:07,589 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 03:28:07,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:07,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010757530] [2022-11-03 03:28:07,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010757530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:07,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:07,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:28:07,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798986067] [2022-11-03 03:28:07,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:07,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:28:07,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:28:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:28:07,628 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) 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 03:28:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:07,864 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2022-11-03 03:28:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:28:07,867 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 03:28:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:07,892 INFO L225 Difference]: With dead ends: 370 [2022-11-03 03:28:07,893 INFO L226 Difference]: Without dead ends: 228 [2022-11-03 03:28:07,902 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 03:28:07,908 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:07,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-03 03:28:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-03 03:28:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-03 03:28:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2022-11-03 03:28:07,979 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 75 [2022-11-03 03:28:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:07,981 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2022-11-03 03:28:07,981 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 03:28:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2022-11-03 03:28:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 03:28:07,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:07,985 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 03:28:07,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:28:07,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -974911515, now seen corresponding path program 1 times [2022-11-03 03:28:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136537016] [2022-11-03 03:28:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:07,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:08,332 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 03:28:08,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:08,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136537016] [2022-11-03 03:28:08,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136537016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:08,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:08,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:28:08,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611712364] [2022-11-03 03:28:08,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:08,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:08,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:08,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:08,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:08,338 INFO L87 Difference]: Start difference. First operand 228 states and 303 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 03:28:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:08,522 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2022-11-03 03:28:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:08,523 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 03:28:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:08,529 INFO L225 Difference]: With dead ends: 366 [2022-11-03 03:28:08,530 INFO L226 Difference]: Without dead ends: 230 [2022-11-03 03:28:08,535 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 03:28:08,537 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:08,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:08,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-03 03:28:08,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-03 03:28:08,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-03 03:28:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2022-11-03 03:28:08,607 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 76 [2022-11-03 03:28:08,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:08,608 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2022-11-03 03:28:08,608 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 03:28:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2022-11-03 03:28:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 03:28:08,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:08,612 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 03:28:08,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:28:08,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:08,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash -859081256, now seen corresponding path program 1 times [2022-11-03 03:28:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:08,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042064669] [2022-11-03 03:28:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:08,859 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 03:28:08,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:08,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042064669] [2022-11-03 03:28:08,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042064669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:08,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:08,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:28:08,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249480691] [2022-11-03 03:28:08,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:08,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:08,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:08,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:08,866 INFO L87 Difference]: Start difference. First operand 230 states and 305 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 03:28:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:09,061 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2022-11-03 03:28:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:09,061 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 03:28:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:09,066 INFO L225 Difference]: With dead ends: 495 [2022-11-03 03:28:09,066 INFO L226 Difference]: Without dead ends: 283 [2022-11-03 03:28:09,069 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 03:28:09,075 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 59 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:09,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 538 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:09,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-11-03 03:28:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2022-11-03 03:28:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2022-11-03 03:28:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2022-11-03 03:28:09,123 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 81 [2022-11-03 03:28:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:09,125 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2022-11-03 03:28:09,125 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 03:28:09,126 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2022-11-03 03:28:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 03:28:09,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:09,135 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 03:28:09,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:28:09,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash 937438112, now seen corresponding path program 1 times [2022-11-03 03:28:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:09,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088077859] [2022-11-03 03:28:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:09,402 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 03:28:09,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:09,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088077859] [2022-11-03 03:28:09,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088077859] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:28:09,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086214930] [2022-11-03 03:28:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:09,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:09,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:09,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:28:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:28:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:09,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:28:09,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:28:09,862 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 03:28:09,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:28:09,969 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 03:28:09,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086214930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:28:09,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [318456336] [2022-11-03 03:28:09,993 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-03 03:28:09,994 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:28:09,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:28:10,004 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:28:10,005 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:28:47,240 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:28:47,545 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 480 for LOIs [2022-11-03 03:28:57,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:28:58,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:58,109 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 03:28:58,112 INFO L158 Benchmark]: Toolchain (without parser) took 54720.13ms. Allocated memory was 109.1MB in the beginning and 488.6MB in the end (delta: 379.6MB). Free memory was 70.4MB in the beginning and 243.3MB in the end (delta: -172.9MB). Peak memory consumption was 296.2MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,112 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:28:58,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1018.45ms. Allocated memory is still 109.1MB. Free memory was 70.2MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.38ms. Allocated memory is still 109.1MB. Free memory was 56.3MB in the beginning and 50.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,113 INFO L158 Benchmark]: Boogie Preprocessor took 58.51ms. Allocated memory is still 109.1MB. Free memory was 49.8MB in the beginning and 44.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,114 INFO L158 Benchmark]: RCFGBuilder took 2396.20ms. Allocated memory was 109.1MB in the beginning and 155.2MB in the end (delta: 46.1MB). Free memory was 44.6MB in the beginning and 96.0MB in the end (delta: -51.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,114 INFO L158 Benchmark]: TraceAbstraction took 51120.63ms. Allocated memory was 155.2MB in the beginning and 488.6MB in the end (delta: 333.4MB). Free memory was 95.0MB in the beginning and 243.3MB in the end (delta: -148.4MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. [2022-11-03 03:28:58,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1018.45ms. Allocated memory is still 109.1MB. Free memory was 70.2MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.38ms. Allocated memory is still 109.1MB. Free memory was 56.3MB in the beginning and 50.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.51ms. Allocated memory is still 109.1MB. Free memory was 49.8MB in the beginning and 44.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2396.20ms. Allocated memory was 109.1MB in the beginning and 155.2MB in the end (delta: 46.1MB). Free memory was 44.6MB in the beginning and 96.0MB in the end (delta: -51.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * TraceAbstraction took 51120.63ms. Allocated memory was 155.2MB in the beginning and 488.6MB in the end (delta: 333.4MB). Free memory was 95.0MB in the beginning and 243.3MB in the end (delta: -148.4MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 03:28:58,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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 82e24cc91d79ad041473748268d13bac909e458d30ed1ab080cccaeb5ccb7cec --- 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 03:29:00,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:29:00,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:29:00,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:29:00,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:29:00,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:29:00,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:29:00,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:29:00,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:29:00,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:29:00,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:29:00,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:29:00,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:29:00,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:29:00,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:29:00,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:29:00,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:29:00,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:29:00,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:29:00,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:29:00,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:29:00,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:29:00,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:29:00,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:29:00,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:29:00,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:29:00,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:29:00,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:29:00,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:29:00,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:29:00,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:29:00,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:29:00,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:29:00,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:29:00,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:29:00,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:29:00,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:29:00,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:29:00,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:29:00,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:29:00,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:29:00,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:29:00,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:29:00,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:29:00,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:29:00,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:29:00,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:29:00,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:29:00,681 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:29:00,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:29:00,682 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:29:00,682 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:29:00,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:29:00,682 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:29:00,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:29:00,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:29:00,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:29:00,684 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:29:00,685 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:29:00,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:29:00,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:29:00,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:29:00,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:29:00,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:29:00,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:29:00,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:29:00,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:00,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:29:00,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:29:00,687 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e24cc91d79ad041473748268d13bac909e458d30ed1ab080cccaeb5ccb7cec [2022-11-03 03:29:01,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:29:01,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:29:01,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:29:01,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:29:01,097 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:29:01,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec4_product34.cil.c [2022-11-03 03:29:01,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/de829cfc8/031c4acb147f4c5eb75bdca4c9f6d6d1/FLAGfb0d599a3 [2022-11-03 03:29:01,818 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:29:01,818 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c [2022-11-03 03:29:01,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/de829cfc8/031c4acb147f4c5eb75bdca4c9f6d6d1/FLAGfb0d599a3 [2022-11-03 03:29:02,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/data/de829cfc8/031c4acb147f4c5eb75bdca4c9f6d6d1 [2022-11-03 03:29:02,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:29:02,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:29:02,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:02,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:29:02,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:29:02,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:02" (1/1) ... [2022-11-03 03:29:02,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b93ad1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:02, skipping insertion in model container [2022-11-03 03:29:02,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:02" (1/1) ... [2022-11-03 03:29:02,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:29:02,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:29:02,336 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c[1542,1555] [2022-11-03 03:29:02,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:02,892 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 03:29:02,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:29:02,917 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c[1542,1555] [2022-11-03 03:29:03,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:03,060 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:29:03,073 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_93f1a7f0-5b78-4a3f-8621-cf366cd85172/sv-benchmarks/c/product-lines/email_spec4_product34.cil.c[1542,1555] [2022-11-03 03:29:03,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:03,177 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:29:03,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03 WrapperNode [2022-11-03 03:29:03,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:03,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:03,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:29:03,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:29:03,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,269 INFO L138 Inliner]: procedures = 136, calls = 237, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1033 [2022-11-03 03:29:03,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:03,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:29:03,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:29:03,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:29:03,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,354 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:29:03,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:29:03,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:29:03,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:29:03,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (1/1) ... [2022-11-03 03:29:03,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:03,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:03,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:29:03,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:29:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:29:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:29:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:29:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:29:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:29:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:29:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:29:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:29:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:29:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:29:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:29:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:29:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:29:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:29:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:29:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:29:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:29:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:29:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:29:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:29:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:29:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:29:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:29:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:29:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:29:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:29:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:29:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:29:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:29:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:29:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:29:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:29:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:29:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:29:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:29:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:29:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:29:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:29:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:29:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:29:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:29:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:29:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:29:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 03:29:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 03:29:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:29:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:29:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:29:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:29:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:29:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:29:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:29:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:29:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:29:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:29:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:29:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:29:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:29:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:29:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:29:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:29:03,759 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:29:03,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:29:05,150 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:29:05,174 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:29:05,174 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:29:05,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:29:05 BoogieIcfgContainer [2022-11-03 03:29:05,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:29:05,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:29:05,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:29:05,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:29:05,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:29:02" (1/3) ... [2022-11-03 03:29:05,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffece78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:29:05, skipping insertion in model container [2022-11-03 03:29:05,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:03" (2/3) ... [2022-11-03 03:29:05,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffece78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:29:05, skipping insertion in model container [2022-11-03 03:29:05,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:29:05" (3/3) ... [2022-11-03 03:29:05,192 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2022-11-03 03:29:05,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:29:05,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:29:05,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:29:05,348 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;@4d1ec061, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:29:05,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:29:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 447 states, 346 states have (on average 1.5375722543352601) internal successors, (532), 351 states have internal predecessors, (532), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-03 03:29:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-03 03:29:05,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:05,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:05,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:05,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash 469008212, now seen corresponding path program 1 times [2022-11-03 03:29:05,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:05,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860539829] [2022-11-03 03:29:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:05,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:05,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:05,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:05,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:29:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:06,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:29:06,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:29:06,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:06,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:06,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860539829] [2022-11-03 03:29:06,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860539829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:06,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:06,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:29:06,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952214175] [2022-11-03 03:29:06,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:06,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:29:06,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:29:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:29:06,118 INFO L87 Difference]: Start difference. First operand has 447 states, 346 states have (on average 1.5375722543352601) internal successors, (532), 351 states have internal predecessors, (532), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:06,194 INFO L93 Difference]: Finished difference Result 701 states and 1038 transitions. [2022-11-03 03:29:06,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:29:06,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-11-03 03:29:06,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:06,213 INFO L225 Difference]: With dead ends: 701 [2022-11-03 03:29:06,213 INFO L226 Difference]: Without dead ends: 440 [2022-11-03 03:29:06,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 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 03:29:06,223 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:06,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:06,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-03 03:29:06,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-11-03 03:29:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 340 states have (on average 1.5323529411764707) internal successors, (521), 344 states have internal predecessors, (521), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-03 03:29:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 662 transitions. [2022-11-03 03:29:06,303 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 662 transitions. Word has length 116 [2022-11-03 03:29:06,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:06,305 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 662 transitions. [2022-11-03 03:29:06,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 662 transitions. [2022-11-03 03:29:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 03:29:06,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:06,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:06,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:06,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:06,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:06,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1635745970, now seen corresponding path program 1 times [2022-11-03 03:29:06,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:06,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831133434] [2022-11-03 03:29:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:06,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:06,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:06,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:29:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:06,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:29:06,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 03:29:07,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:07,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:07,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831133434] [2022-11-03 03:29:07,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831133434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:07,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:07,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607379942] [2022-11-03 03:29:07,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:07,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:07,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:07,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:07,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:07,076 INFO L87 Difference]: Start difference. First operand 440 states and 662 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:07,260 INFO L93 Difference]: Finished difference Result 871 states and 1314 transitions. [2022-11-03 03:29:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:07,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2022-11-03 03:29:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:07,270 INFO L225 Difference]: With dead ends: 871 [2022-11-03 03:29:07,270 INFO L226 Difference]: Without dead ends: 442 [2022-11-03 03:29:07,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:07,278 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 152 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:07,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2437 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-03 03:29:07,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-11-03 03:29:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 341 states have (on average 1.530791788856305) internal successors, (522), 346 states have internal predecessors, (522), 71 states have call successors, (71), 28 states have call predecessors, (71), 29 states have return successors, (72), 69 states have call predecessors, (72), 70 states have call successors, (72) [2022-11-03 03:29:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 665 transitions. [2022-11-03 03:29:07,351 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 665 transitions. Word has length 117 [2022-11-03 03:29:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:07,354 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 665 transitions. [2022-11-03 03:29:07,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 665 transitions. [2022-11-03 03:29:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-03 03:29:07,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:07,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:07,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-03 03:29:07,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:07,585 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:07,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:07,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1852429124, now seen corresponding path program 1 times [2022-11-03 03:29:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:07,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991545649] [2022-11-03 03:29:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:07,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:07,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:29:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:08,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:29:08,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 03:29:08,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:08,092 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:08,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991545649] [2022-11-03 03:29:08,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991545649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:08,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:08,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360127844] [2022-11-03 03:29:08,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:08,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:08,096 INFO L87 Difference]: Start difference. First operand 442 states and 665 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:08,232 INFO L93 Difference]: Finished difference Result 873 states and 1318 transitions. [2022-11-03 03:29:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2022-11-03 03:29:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:08,237 INFO L225 Difference]: With dead ends: 873 [2022-11-03 03:29:08,237 INFO L226 Difference]: Without dead ends: 444 [2022-11-03 03:29:08,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:08,240 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 151 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:08,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2426 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:08,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-03 03:29:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-11-03 03:29:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 342 states have (on average 1.5292397660818713) internal successors, (523), 348 states have internal predecessors, (523), 71 states have call successors, (71), 28 states have call predecessors, (71), 30 states have return successors, (76), 69 states have call predecessors, (76), 70 states have call successors, (76) [2022-11-03 03:29:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 670 transitions. [2022-11-03 03:29:08,270 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 670 transitions. Word has length 118 [2022-11-03 03:29:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:08,271 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 670 transitions. [2022-11-03 03:29:08,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 670 transitions. [2022-11-03 03:29:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-03 03:29:08,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:08,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:08,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:08,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:08,492 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:08,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1315077925, now seen corresponding path program 1 times [2022-11-03 03:29:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:08,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460293976] [2022-11-03 03:29:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:08,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:08,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:08,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:08,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:29:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:08,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:29:08,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 03:29:08,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:08,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:08,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460293976] [2022-11-03 03:29:08,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460293976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:08,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:08,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884374337] [2022-11-03 03:29:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:08,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:08,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:08,970 INFO L87 Difference]: Start difference. First operand 444 states and 670 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:09,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:09,077 INFO L93 Difference]: Finished difference Result 865 states and 1308 transitions. [2022-11-03 03:29:09,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:09,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2022-11-03 03:29:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:09,082 INFO L225 Difference]: With dead ends: 865 [2022-11-03 03:29:09,082 INFO L226 Difference]: Without dead ends: 444 [2022-11-03 03:29:09,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:09,090 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 150 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:09,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 2440 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-03 03:29:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-11-03 03:29:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 342 states have (on average 1.5292397660818713) internal successors, (523), 348 states have internal predecessors, (523), 71 states have call successors, (71), 28 states have call predecessors, (71), 30 states have return successors, (75), 69 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-03 03:29:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 669 transitions. [2022-11-03 03:29:09,140 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 669 transitions. Word has length 119 [2022-11-03 03:29:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:09,142 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 669 transitions. [2022-11-03 03:29:09,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 669 transitions. [2022-11-03 03:29:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 03:29:09,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:09,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:09,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:09,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1758056601, now seen corresponding path program 2 times [2022-11-03 03:29:09,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:09,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098941517] [2022-11-03 03:29:09,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:29:09,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:09,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:09,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:29:09,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-03 03:29:09,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:29:09,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:09,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 03:29:09,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:09,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:09,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098941517] [2022-11-03 03:29:09,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098941517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:09,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:09,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:09,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699207469] [2022-11-03 03:29:09,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:09,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:09,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:09,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:09,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:09,704 INFO L87 Difference]: Start difference. First operand 444 states and 669 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:09,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:09,745 INFO L93 Difference]: Finished difference Result 695 states and 1023 transitions. [2022-11-03 03:29:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:09,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2022-11-03 03:29:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:09,753 INFO L225 Difference]: With dead ends: 695 [2022-11-03 03:29:09,753 INFO L226 Difference]: Without dead ends: 447 [2022-11-03 03:29:09,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 03:29:09,755 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 1 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:09,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1318 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:09,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-03 03:29:09,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2022-11-03 03:29:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 344 states have (on average 1.5261627906976745) internal successors, (525), 350 states have internal predecessors, (525), 71 states have call successors, (71), 28 states have call predecessors, (71), 30 states have return successors, (75), 69 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-03 03:29:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 671 transitions. [2022-11-03 03:29:09,793 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 671 transitions. Word has length 120 [2022-11-03 03:29:09,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:09,793 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 671 transitions. [2022-11-03 03:29:09,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:09,794 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 671 transitions. [2022-11-03 03:29:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-03 03:29:09,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:09,798 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:09,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:10,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:10,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:10,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1364310110, now seen corresponding path program 1 times [2022-11-03 03:29:10,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:10,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974393536] [2022-11-03 03:29:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:10,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:10,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:10,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:29:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:10,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:29:10,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:29:10,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:10,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:10,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974393536] [2022-11-03 03:29:10,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974393536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:10,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:10,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827770613] [2022-11-03 03:29:10,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:10,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:10,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:10,485 INFO L87 Difference]: Start difference. First operand 446 states and 671 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:10,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:10,598 INFO L93 Difference]: Finished difference Result 871 states and 1315 transitions. [2022-11-03 03:29:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:10,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2022-11-03 03:29:10,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:10,609 INFO L225 Difference]: With dead ends: 871 [2022-11-03 03:29:10,609 INFO L226 Difference]: Without dead ends: 448 [2022-11-03 03:29:10,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:10,612 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 148 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:10,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2442 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-03 03:29:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2022-11-03 03:29:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 345 states have (on average 1.5246376811594202) internal successors, (526), 352 states have internal predecessors, (526), 71 states have call successors, (71), 28 states have call predecessors, (71), 31 states have return successors, (77), 69 states have call predecessors, (77), 70 states have call successors, (77) [2022-11-03 03:29:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 674 transitions. [2022-11-03 03:29:10,643 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 674 transitions. Word has length 126 [2022-11-03 03:29:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:10,644 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 674 transitions. [2022-11-03 03:29:10,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 674 transitions. [2022-11-03 03:29:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-03 03:29:10,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:10,647 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:10,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:10,864 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 724729879, now seen corresponding path program 1 times [2022-11-03 03:29:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:10,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406285734] [2022-11-03 03:29:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:10,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:10,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:10,867 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:10,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:29:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:11,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:29:11,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 03:29:11,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:11,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:11,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406285734] [2022-11-03 03:29:11,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406285734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:11,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:11,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:11,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068534611] [2022-11-03 03:29:11,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:11,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:11,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:11,347 INFO L87 Difference]: Start difference. First operand 448 states and 674 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:11,494 INFO L93 Difference]: Finished difference Result 869 states and 1310 transitions. [2022-11-03 03:29:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:11,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-11-03 03:29:11,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:11,499 INFO L225 Difference]: With dead ends: 869 [2022-11-03 03:29:11,500 INFO L226 Difference]: Without dead ends: 448 [2022-11-03 03:29:11,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:11,506 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 149 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:11,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2429 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-03 03:29:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2022-11-03 03:29:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 345 states have (on average 1.5246376811594202) internal successors, (526), 352 states have internal predecessors, (526), 71 states have call successors, (71), 28 states have call predecessors, (71), 31 states have return successors, (76), 69 states have call predecessors, (76), 70 states have call successors, (76) [2022-11-03 03:29:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 673 transitions. [2022-11-03 03:29:11,540 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 673 transitions. Word has length 127 [2022-11-03 03:29:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:11,541 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 673 transitions. [2022-11-03 03:29:11,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 673 transitions. [2022-11-03 03:29:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-03 03:29:11,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:11,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:11,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:11,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:11,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:11,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1327167273, now seen corresponding path program 1 times [2022-11-03 03:29:11,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:11,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286503886] [2022-11-03 03:29:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:11,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:11,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:11,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:29:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:12,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:29:12,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 03:29:12,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:12,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:12,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286503886] [2022-11-03 03:29:12,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286503886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:12,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:12,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:12,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93708264] [2022-11-03 03:29:12,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:12,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:12,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:12,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:12,209 INFO L87 Difference]: Start difference. First operand 448 states and 673 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 03:29:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:12,336 INFO L93 Difference]: Finished difference Result 871 states and 1315 transitions. [2022-11-03 03:29:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2022-11-03 03:29:12,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:12,340 INFO L225 Difference]: With dead ends: 871 [2022-11-03 03:29:12,340 INFO L226 Difference]: Without dead ends: 450 [2022-11-03 03:29:12,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:12,343 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 147 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:12,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 2431 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-03 03:29:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-11-03 03:29:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 346 states have (on average 1.523121387283237) internal successors, (527), 354 states have internal predecessors, (527), 71 states have call successors, (71), 28 states have call predecessors, (71), 32 states have return successors, (80), 69 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-03 03:29:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 678 transitions. [2022-11-03 03:29:12,371 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 678 transitions. Word has length 147 [2022-11-03 03:29:12,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:12,372 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 678 transitions. [2022-11-03 03:29:12,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 03:29:12,372 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 678 transitions. [2022-11-03 03:29:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-03 03:29:12,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:12,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:12,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:12,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:12,589 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:12,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash -984048642, now seen corresponding path program 1 times [2022-11-03 03:29:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:12,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126802245] [2022-11-03 03:29:12,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:12,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:12,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:12,593 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:12,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 03:29:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:12,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:29:12,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 03:29:12,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:12,963 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:12,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126802245] [2022-11-03 03:29:12,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126802245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:12,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:12,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500360142] [2022-11-03 03:29:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:12,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:12,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:12,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:12,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:12,965 INFO L87 Difference]: Start difference. First operand 450 states and 678 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:13,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:13,084 INFO L93 Difference]: Finished difference Result 875 states and 1323 transitions. [2022-11-03 03:29:13,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:13,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2022-11-03 03:29:13,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:13,087 INFO L225 Difference]: With dead ends: 875 [2022-11-03 03:29:13,087 INFO L226 Difference]: Without dead ends: 452 [2022-11-03 03:29:13,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:13,090 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 147 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:13,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2429 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:29:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-03 03:29:13,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2022-11-03 03:29:13,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 346 states have (on average 1.523121387283237) internal successors, (527), 354 states have internal predecessors, (527), 71 states have call successors, (71), 28 states have call predecessors, (71), 32 states have return successors, (80), 69 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-03 03:29:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 678 transitions. [2022-11-03 03:29:13,116 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 678 transitions. Word has length 129 [2022-11-03 03:29:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:13,117 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 678 transitions. [2022-11-03 03:29:13,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 03:29:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 678 transitions. [2022-11-03 03:29:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-03 03:29:13,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:13,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:13,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:13,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash 296954095, now seen corresponding path program 1 times [2022-11-03 03:29:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:13,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018613971] [2022-11-03 03:29:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:13,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:13,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:13,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:13,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 03:29:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:13,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:13,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-03 03:29:13,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:13,728 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018613971] [2022-11-03 03:29:13,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018613971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:13,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:13,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:13,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377025116] [2022-11-03 03:29:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:13,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:13,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:13,731 INFO L87 Difference]: Start difference. First operand 450 states and 678 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:13,783 INFO L93 Difference]: Finished difference Result 944 states and 1442 transitions. [2022-11-03 03:29:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:13,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2022-11-03 03:29:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:13,787 INFO L225 Difference]: With dead ends: 944 [2022-11-03 03:29:13,787 INFO L226 Difference]: Without dead ends: 525 [2022-11-03 03:29:13,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 03:29:13,790 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 134 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:13,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1303 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:13,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-11-03 03:29:13,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 517. [2022-11-03 03:29:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 399 states have (on average 1.543859649122807) internal successors, (616), 407 states have internal predecessors, (616), 85 states have call successors, (85), 28 states have call predecessors, (85), 32 states have return successors, (96), 83 states have call predecessors, (96), 84 states have call successors, (96) [2022-11-03 03:29:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 797 transitions. [2022-11-03 03:29:13,840 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 797 transitions. Word has length 148 [2022-11-03 03:29:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:13,840 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 797 transitions. [2022-11-03 03:29:13,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 797 transitions. [2022-11-03 03:29:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 03:29:13,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:13,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:13,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:14,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:14,065 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1484941036, now seen corresponding path program 1 times [2022-11-03 03:29:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:14,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573276479] [2022-11-03 03:29:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:14,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:14,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:14,067 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:14,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 03:29:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:14,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:29:14,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:14,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:14,513 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:14,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573276479] [2022-11-03 03:29:14,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573276479] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:14,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [145866503] [2022-11-03 03:29:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:14,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:29:14,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:29:14,523 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:29:14,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-03 03:29:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:14,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:29:14,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 03:29:15,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:29:15,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [145866503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:15,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072583884] [2022-11-03 03:29:15,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:15,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:29:15,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:15,615 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:29:15,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 03:29:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:15,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:29:15,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 03:29:16,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:29:16,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072583884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:16,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:29:16,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 9, 9, 9, 9] total 20 [2022-11-03 03:29:16,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380806092] [2022-11-03 03:29:16,332 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:29:16,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 03:29:16,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 03:29:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:29:16,335 INFO L87 Difference]: Start difference. First operand 517 states and 797 transitions. Second operand has 20 states, 20 states have (on average 9.5) internal successors, (190), 18 states have internal predecessors, (190), 4 states have call successors, (45), 6 states have call predecessors, (45), 9 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-03 03:29:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:31,271 INFO L93 Difference]: Finished difference Result 2683 states and 4419 transitions. [2022-11-03 03:29:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:29:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.5) internal successors, (190), 18 states have internal predecessors, (190), 4 states have call successors, (45), 6 states have call predecessors, (45), 9 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) Word has length 130 [2022-11-03 03:29:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:31,292 INFO L225 Difference]: With dead ends: 2683 [2022-11-03 03:29:31,293 INFO L226 Difference]: Without dead ends: 2433 [2022-11-03 03:29:31,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=1479, Unknown=0, NotChecked=0, Total=1722 [2022-11-03 03:29:31,298 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 3278 mSDsluCounter, 9096 mSDsCounter, 0 mSdLazyCounter, 9978 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 10364 SdHoareTripleChecker+Invalid, 10876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 9978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:31,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 10364 Invalid, 10876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 9978 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-11-03 03:29:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2022-11-03 03:29:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 1867. [2022-11-03 03:29:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1475 states have (on average 1.6128813559322035) internal successors, (2379), 1488 states have internal predecessors, (2379), 326 states have call successors, (326), 57 states have call predecessors, (326), 65 states have return successors, (393), 325 states have call predecessors, (393), 324 states have call successors, (393) [2022-11-03 03:29:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 3098 transitions. [2022-11-03 03:29:31,618 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 3098 transitions. Word has length 130 [2022-11-03 03:29:31,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:31,618 INFO L495 AbstractCegarLoop]: Abstraction has 1867 states and 3098 transitions. [2022-11-03 03:29:31,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.5) internal successors, (190), 18 states have internal predecessors, (190), 4 states have call successors, (45), 6 states have call predecessors, (45), 9 states have return successors, (40), 6 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-03 03:29:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 3098 transitions. [2022-11-03 03:29:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-03 03:29:31,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:31,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:31,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:31,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:32,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:32,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:29:32,256 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:32,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1898162585, now seen corresponding path program 1 times [2022-11-03 03:29:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:32,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781674627] [2022-11-03 03:29:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:32,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:32,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:32,259 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:32,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 03:29:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:32,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:32,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-03 03:29:32,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:32,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:32,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781674627] [2022-11-03 03:29:32,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781674627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:32,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:32,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:32,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854520951] [2022-11-03 03:29:32,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:32,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:32,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:32,739 INFO L87 Difference]: Start difference. First operand 1867 states and 3098 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:33,110 INFO L93 Difference]: Finished difference Result 4455 states and 7508 transitions. [2022-11-03 03:29:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2022-11-03 03:29:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:33,128 INFO L225 Difference]: With dead ends: 4455 [2022-11-03 03:29:33,128 INFO L226 Difference]: Without dead ends: 2713 [2022-11-03 03:29:33,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 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 03:29:33,136 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 132 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:33,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1357 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2022-11-03 03:29:33,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2697. [2022-11-03 03:29:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2147 states have (on average 1.6297158826269214) internal successors, (3499), 2160 states have internal predecessors, (3499), 484 states have call successors, (484), 57 states have call predecessors, (484), 65 states have return successors, (591), 483 states have call predecessors, (591), 482 states have call successors, (591) [2022-11-03 03:29:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 4574 transitions. [2022-11-03 03:29:33,541 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 4574 transitions. Word has length 156 [2022-11-03 03:29:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:33,542 INFO L495 AbstractCegarLoop]: Abstraction has 2697 states and 4574 transitions. [2022-11-03 03:29:33,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 4574 transitions. [2022-11-03 03:29:33,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-03 03:29:33,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:33,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:33,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:33,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:33,780 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1286383163, now seen corresponding path program 1 times [2022-11-03 03:29:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716939944] [2022-11-03 03:29:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:33,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:33,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:33,782 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:33,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 03:29:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:34,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:34,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:34,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:34,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:34,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716939944] [2022-11-03 03:29:34,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716939944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:34,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:34,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:34,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889529173] [2022-11-03 03:29:34,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:34,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:34,142 INFO L87 Difference]: Start difference. First operand 2697 states and 4574 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:34,732 INFO L93 Difference]: Finished difference Result 6483 states and 11084 transitions. [2022-11-03 03:29:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:34,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2022-11-03 03:29:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:34,763 INFO L225 Difference]: With dead ends: 6483 [2022-11-03 03:29:34,763 INFO L226 Difference]: Without dead ends: 4017 [2022-11-03 03:29:34,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 03:29:34,777 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 130 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:34,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1334 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2022-11-03 03:29:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 4001. [2022-11-03 03:29:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3213 states have (on average 1.6411453470277) internal successors, (5273), 3226 states have internal predecessors, (5273), 722 states have call successors, (722), 57 states have call predecessors, (722), 65 states have return successors, (861), 721 states have call predecessors, (861), 720 states have call successors, (861) [2022-11-03 03:29:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6856 transitions. [2022-11-03 03:29:35,513 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6856 transitions. Word has length 138 [2022-11-03 03:29:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:35,514 INFO L495 AbstractCegarLoop]: Abstraction has 4001 states and 6856 transitions. [2022-11-03 03:29:35,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6856 transitions. [2022-11-03 03:29:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-03 03:29:35,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:35,543 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:35,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:35,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:35,759 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:35,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash 579813143, now seen corresponding path program 1 times [2022-11-03 03:29:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:35,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087851274] [2022-11-03 03:29:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:35,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:35,763 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:35,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 03:29:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:36,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:36,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-03 03:29:36,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:36,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:36,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087851274] [2022-11-03 03:29:36,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087851274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:36,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:36,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995936588] [2022-11-03 03:29:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:36,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:36,226 INFO L87 Difference]: Start difference. First operand 4001 states and 6856 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:37,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:37,344 INFO L93 Difference]: Finished difference Result 9543 states and 16504 transitions. [2022-11-03 03:29:37,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:37,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2022-11-03 03:29:37,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:37,390 INFO L225 Difference]: With dead ends: 9543 [2022-11-03 03:29:37,390 INFO L226 Difference]: Without dead ends: 6023 [2022-11-03 03:29:37,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 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 03:29:37,406 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 128 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:37,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1328 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2022-11-03 03:29:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6007. [2022-11-03 03:29:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6007 states, 4895 states have (on average 1.6500510725229827) internal successors, (8077), 4908 states have internal predecessors, (8077), 1046 states have call successors, (1046), 57 states have call predecessors, (1046), 65 states have return successors, (1269), 1045 states have call predecessors, (1269), 1044 states have call successors, (1269) [2022-11-03 03:29:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6007 states to 6007 states and 10392 transitions. [2022-11-03 03:29:38,425 INFO L78 Accepts]: Start accepts. Automaton has 6007 states and 10392 transitions. Word has length 158 [2022-11-03 03:29:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:38,425 INFO L495 AbstractCegarLoop]: Abstraction has 6007 states and 10392 transitions. [2022-11-03 03:29:38,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6007 states and 10392 transitions. [2022-11-03 03:29:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-03 03:29:38,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:38,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:38,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:38,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:38,683 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:38,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:38,684 INFO L85 PathProgramCache]: Analyzing trace with hash 582612453, now seen corresponding path program 1 times [2022-11-03 03:29:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:38,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412491963] [2022-11-03 03:29:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:38,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:38,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:38,686 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:38,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 03:29:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:39,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:39,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-03 03:29:39,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:39,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:39,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412491963] [2022-11-03 03:29:39,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412491963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:39,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:39,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:39,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839417001] [2022-11-03 03:29:39,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:39,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:39,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:39,074 INFO L87 Difference]: Start difference. First operand 6007 states and 10392 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:40,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:40,667 INFO L93 Difference]: Finished difference Result 14391 states and 25108 transitions. [2022-11-03 03:29:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:40,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2022-11-03 03:29:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:40,721 INFO L225 Difference]: With dead ends: 14391 [2022-11-03 03:29:40,721 INFO L226 Difference]: Without dead ends: 9273 [2022-11-03 03:29:40,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 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 03:29:40,740 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 126 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:40,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1328 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2022-11-03 03:29:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9257. [2022-11-03 03:29:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9257 states, 7655 states have (on average 1.6563030698889614) internal successors, (12679), 7668 states have internal predecessors, (12679), 1536 states have call successors, (1536), 57 states have call predecessors, (1536), 65 states have return successors, (1899), 1535 states have call predecessors, (1899), 1534 states have call successors, (1899) [2022-11-03 03:29:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 16114 transitions. [2022-11-03 03:29:42,221 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 16114 transitions. Word has length 159 [2022-11-03 03:29:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:42,221 INFO L495 AbstractCegarLoop]: Abstraction has 9257 states and 16114 transitions. [2022-11-03 03:29:42,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:29:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 16114 transitions. [2022-11-03 03:29:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 03:29:42,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:42,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:42,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:42,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:42,508 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1075658800, now seen corresponding path program 1 times [2022-11-03 03:29:42,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:42,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069438204] [2022-11-03 03:29:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:42,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:42,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 03:29:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:42,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:42,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:42,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:42,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069438204] [2022-11-03 03:29:42,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069438204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:42,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:42,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228876123] [2022-11-03 03:29:42,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:42,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:42,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:42,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:42,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:42,870 INFO L87 Difference]: Start difference. First operand 9257 states and 16114 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:44,638 INFO L93 Difference]: Finished difference Result 22483 states and 39472 transitions. [2022-11-03 03:29:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:44,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2022-11-03 03:29:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:44,721 INFO L225 Difference]: With dead ends: 22483 [2022-11-03 03:29:44,721 INFO L226 Difference]: Without dead ends: 14739 [2022-11-03 03:29:44,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 03:29:44,757 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 124 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:44,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1332 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14739 states. [2022-11-03 03:29:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14739 to 14723. [2022-11-03 03:29:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14723 states, 12135 states have (on average 1.6554594149155335) internal successors, (20089), 12148 states have internal predecessors, (20089), 2522 states have call successors, (2522), 57 states have call predecessors, (2522), 65 states have return successors, (3129), 2521 states have call predecessors, (3129), 2520 states have call successors, (3129) [2022-11-03 03:29:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 25740 transitions. [2022-11-03 03:29:47,067 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 25740 transitions. Word has length 141 [2022-11-03 03:29:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:47,067 INFO L495 AbstractCegarLoop]: Abstraction has 14723 states and 25740 transitions. [2022-11-03 03:29:47,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 25740 transitions. [2022-11-03 03:29:47,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 03:29:47,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:47,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:47,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:47,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:47,339 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1460781206, now seen corresponding path program 1 times [2022-11-03 03:29:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:47,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385047713] [2022-11-03 03:29:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:47,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:47,341 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:47,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-03 03:29:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:47,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:47,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:47,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:47,749 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:47,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385047713] [2022-11-03 03:29:47,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385047713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:47,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:47,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104298530] [2022-11-03 03:29:47,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:47,752 INFO L87 Difference]: Start difference. First operand 14723 states and 25740 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:51,669 INFO L93 Difference]: Finished difference Result 37153 states and 65274 transitions. [2022-11-03 03:29:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:29:51,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-11-03 03:29:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:51,807 INFO L225 Difference]: With dead ends: 37153 [2022-11-03 03:29:51,807 INFO L226 Difference]: Without dead ends: 24697 [2022-11-03 03:29:51,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 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 03:29:51,861 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 122 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:51,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1342 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:29:52,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24697 states. [2022-11-03 03:29:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24697 to 24681. [2022-11-03 03:29:55,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24681 states, 20449 states have (on average 1.656266810112964) internal successors, (33869), 20462 states have internal predecessors, (33869), 4166 states have call successors, (4166), 57 states have call predecessors, (4166), 65 states have return successors, (5073), 4165 states have call predecessors, (5073), 4164 states have call successors, (5073) [2022-11-03 03:29:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24681 states to 24681 states and 43108 transitions. [2022-11-03 03:29:55,707 INFO L78 Accepts]: Start accepts. Automaton has 24681 states and 43108 transitions. Word has length 142 [2022-11-03 03:29:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:55,708 INFO L495 AbstractCegarLoop]: Abstraction has 24681 states and 43108 transitions. [2022-11-03 03:29:55,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:29:55,709 INFO L276 IsEmpty]: Start isEmpty. Operand 24681 states and 43108 transitions. [2022-11-03 03:29:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-03 03:29:55,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:55,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:55,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:56,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:29:56,033 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:56,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2013886786, now seen corresponding path program 1 times [2022-11-03 03:29:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:29:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740338886] [2022-11-03 03:29:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:56,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:29:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:29:56,036 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:29:56,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f1a7f0-5b78-4a3f-8621-cf366cd85172/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 03:29:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:56,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:29:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:29:56,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:29:56,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:29:56,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740338886] [2022-11-03 03:29:56,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740338886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:56,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:56,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:29:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615907307] [2022-11-03 03:29:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:56,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:29:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:29:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:29:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:29:56,464 INFO L87 Difference]: Start difference. First operand 24681 states and 43108 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 03:30:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:01,909 INFO L93 Difference]: Finished difference Result 59069 states and 103204 transitions. [2022-11-03 03:30:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:01,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-11-03 03:30:01,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:02,074 INFO L225 Difference]: With dead ends: 59069 [2022-11-03 03:30:02,074 INFO L226 Difference]: Without dead ends: 38603 [2022-11-03 03:30:02,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 03:30:02,137 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 120 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:02,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1312 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:30:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38603 states.