./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS --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 f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 --- 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-8393723 [2022-11-19 07:38:25,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:38:25,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:38:25,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:38:25,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:38:25,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:38:26,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:38:26,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:38:26,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:38:26,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:38:26,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:38:26,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:38:26,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:38:26,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:38:26,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:38:26,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:38:26,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:38:26,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:38:26,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:38:26,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:38:26,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:38:26,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:38:26,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:38:26,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:38:26,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:38:26,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:38:26,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:38:26,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:38:26,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:38:26,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:38:26,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:38:26,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:38:26,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:38:26,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:38:26,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:38:26,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:38:26,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:38:26,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:38:26,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:38:26,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:38:26,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:38:26,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:38:26,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:38:26,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:38:26,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:38:26,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:38:26,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:38:26,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:38:26,140 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:38:26,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:38:26,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:38:26,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:38:26,142 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:38:26,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:38:26,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:38:26,143 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:38:26,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:38:26,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:38:26,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:38:26,144 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:38:26,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:38:26,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:38:26,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:38:26,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:38:26,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:38:26,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:38:26,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:38:26,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:38:26,148 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:38:26,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:38:26,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:38:26,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:38:26,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:38:26,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:38:26,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:26,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:38:26,151 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:38:26,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:38:26,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:38:26,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:38:26,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:38:26,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:38:26,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:38:26,153 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_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 [2022-11-19 07:38:26,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:38:26,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:38:26,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:38:26,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:38:26,599 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:38:26,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-11-19 07:38:26,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/data/b0b6c1b1a/74d2c7f2b8db4019bc9546221e0c0195/FLAG76cc995d1 [2022-11-19 07:38:27,398 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:38:27,399 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-11-19 07:38:27,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/data/b0b6c1b1a/74d2c7f2b8db4019bc9546221e0c0195/FLAG76cc995d1 [2022-11-19 07:38:27,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/data/b0b6c1b1a/74d2c7f2b8db4019bc9546221e0c0195 [2022-11-19 07:38:27,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:38:27,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:38:27,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:27,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:38:27,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:38:27,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:27" (1/1) ... [2022-11-19 07:38:27,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6917fca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:27, skipping insertion in model container [2022-11-19 07:38:27,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:27" (1/1) ... [2022-11-19 07:38:27,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:38:27,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:38:28,606 WARN L234 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_179f7a90-50cf-46a4-a208-cd8be2737f3f/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c[63627,63640] [2022-11-19 07:38:28,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:28,641 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:38:28,815 WARN L234 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_179f7a90-50cf-46a4-a208-cd8be2737f3f/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c[63627,63640] [2022-11-19 07:38:28,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:28,868 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:38:28,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28 WrapperNode [2022-11-19 07:38:28,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:28,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:28,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:38:28,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:38:28,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:28,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,000 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1089 [2022-11-19 07:38:29,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:29,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:38:29,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:38:29,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:38:29,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:38:29,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:38:29,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:38:29,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:38:29,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (1/1) ... [2022-11-19 07:38:29,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:29,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:29,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:38:29,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:38:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 07:38:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 07:38:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 07:38:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 07:38:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 07:38:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 07:38:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 07:38:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 07:38:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 07:38:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 07:38:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-19 07:38:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-19 07:38:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 07:38:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 07:38:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 07:38:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 07:38:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 07:38:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 07:38:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 07:38:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 07:38:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 07:38:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 07:38:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 07:38:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 07:38:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 07:38:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-19 07:38:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-19 07:38:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 07:38:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 07:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 07:38:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 07:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 07:38:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 07:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 07:38:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 07:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 07:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 07:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 07:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 07:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 07:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 07:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 07:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 07:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 07:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 07:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 07:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 07:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 07:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 07:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:38:29,620 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:38:29,627 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:38:30,916 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:31,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:31,675 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:38:31,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:31 BoogieIcfgContainer [2022-11-19 07:38:31,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:31,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:31,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:31,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:31,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:27" (1/3) ... [2022-11-19 07:38:31,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8bc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:31, skipping insertion in model container [2022-11-19 07:38:31,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:28" (2/3) ... [2022-11-19 07:38:31,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8bc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:31, skipping insertion in model container [2022-11-19 07:38:31,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:31" (3/3) ... [2022-11-19 07:38:31,694 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2022-11-19 07:38:31,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:31,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:38:31,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:31,805 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;@763e0935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:31,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:38:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:38:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:38:31,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:31,829 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:31,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:31,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:31,838 INFO L85 PathProgramCache]: Analyzing trace with hash 120790459, now seen corresponding path program 1 times [2022-11-19 07:38:31,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:31,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716343271] [2022-11-19 07:38:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:31,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:38:32,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:32,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716343271] [2022-11-19 07:38:32,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716343271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:32,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:32,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:38:32,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098101148] [2022-11-19 07:38:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:32,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:38:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:38:32,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:38:32,472 INFO L87 Difference]: Start difference. First operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:38:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:32,704 INFO L93 Difference]: Finished difference Result 310 states and 415 transitions. [2022-11-19 07:38:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:38:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2022-11-19 07:38:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:32,721 INFO L225 Difference]: With dead ends: 310 [2022-11-19 07:38:32,721 INFO L226 Difference]: Without dead ends: 198 [2022-11-19 07:38:32,729 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 [2022-11-19 07:38:32,734 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:38:32,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-19 07:38:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-19 07:38:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 115 states have internal predecessors, (142), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-19 07:38:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-11-19 07:38:32,829 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 84 [2022-11-19 07:38:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:32,831 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-11-19 07:38:32,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:38:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-11-19 07:38:32,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:38:32,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:32,836 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] [2022-11-19 07:38:32,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:38:32,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:32,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:32,838 INFO L85 PathProgramCache]: Analyzing trace with hash 458755224, now seen corresponding path program 1 times [2022-11-19 07:38:32,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:32,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557140057] [2022-11-19 07:38:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:32,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:38:33,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557140057] [2022-11-19 07:38:33,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557140057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:33,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:33,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697660401] [2022-11-19 07:38:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:33,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:33,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:33,124 INFO L87 Difference]: Start difference. First operand 198 states and 265 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:38:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:33,344 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2022-11-19 07:38:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:33,345 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-11-19 07:38:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:33,351 INFO L225 Difference]: With dead ends: 306 [2022-11-19 07:38:33,351 INFO L226 Difference]: Without dead ends: 200 [2022-11-19 07:38:33,353 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 [2022-11-19 07:38:33,355 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:33,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:38:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-19 07:38:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-19 07:38:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 117 states have internal predecessors, (144), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-19 07:38:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-11-19 07:38:33,403 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 74 [2022-11-19 07:38:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:33,405 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-11-19 07:38:33,405 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:38:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-11-19 07:38:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:38:33,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:33,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:33,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:33,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:33,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1350248299, now seen corresponding path program 1 times [2022-11-19 07:38:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:33,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217931873] [2022-11-19 07:38:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:38:33,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:33,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217931873] [2022-11-19 07:38:33,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217931873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:33,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:33,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28559804] [2022-11-19 07:38:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:33,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:33,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:33,648 INFO L87 Difference]: Start difference. First operand 200 states and 267 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:38:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:33,819 INFO L93 Difference]: Finished difference Result 435 states and 601 transitions. [2022-11-19 07:38:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:33,820 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-11-19 07:38:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:33,823 INFO L225 Difference]: With dead ends: 435 [2022-11-19 07:38:33,823 INFO L226 Difference]: Without dead ends: 253 [2022-11-19 07:38:33,825 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 [2022-11-19 07:38:33,827 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 59 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:33,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 464 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:38:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-19 07:38:33,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 248. [2022-11-19 07:38:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 151 states have internal predecessors, (199), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-19 07:38:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 350 transitions. [2022-11-19 07:38:33,894 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 350 transitions. Word has length 79 [2022-11-19 07:38:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:33,894 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 350 transitions. [2022-11-19 07:38:33,895 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:38:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 350 transitions. [2022-11-19 07:38:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 07:38:33,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:33,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:33,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:38:33,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:33,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:33,900 INFO L85 PathProgramCache]: Analyzing trace with hash -184388308, now seen corresponding path program 1 times [2022-11-19 07:38:33,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:33,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95102317] [2022-11-19 07:38:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:33,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:38:34,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:34,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95102317] [2022-11-19 07:38:34,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95102317] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:34,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540298892] [2022-11-19 07:38:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:34,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:34,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:34,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:34,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:38:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:34,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:38:34,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:38:34,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:38:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:38:34,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540298892] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:38:34,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [907024231] [2022-11-19 07:38:34,932 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-11-19 07:38:34,932 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:38:34,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:38:34,947 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:38:34,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:22,152 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-19 07:39:22,587 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:39:22,999 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:39:38,431 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:39:44,431 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:40:06,485 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:40:14,506 WARN L233 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:40:20,697 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:40:30,387 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 508 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:40:54,193 WARN L233 SmtUtils]: Spent 23.41s on a formula simplification. DAG size of input: 589 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:15,454 WARN L233 SmtUtils]: Spent 20.84s on a formula simplification. DAG size of input: 591 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:36,170 WARN L233 SmtUtils]: Spent 20.31s on a formula simplification. DAG size of input: 590 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:41:56,867 WARN L233 SmtUtils]: Spent 20.26s on a formula simplification. DAG size of input: 588 DAG size of output: 462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:01,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [907024231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:01,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:42:01,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-19 07:42:01,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468630782] [2022-11-19 07:42:01,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:01,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:42:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:42:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:42:01,283 INFO L87 Difference]: Start difference. First operand 248 states and 350 transitions. Second operand has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-19 07:42:13,466 WARN L233 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 511 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:24,030 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 511 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:35,043 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 518 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:45,558 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 509 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:54,605 INFO L93 Difference]: Finished difference Result 547 states and 807 transitions. [2022-11-19 07:42:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:42:54,607 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 91 [2022-11-19 07:42:54,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:54,611 INFO L225 Difference]: With dead ends: 547 [2022-11-19 07:42:54,611 INFO L226 Difference]: Without dead ends: 317 [2022-11-19 07:42:54,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 200.5s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:42:54,614 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 129 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:54,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 3515 Invalid, 1941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-11-19 07:42:54,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-11-19 07:42:54,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 276. [2022-11-19 07:42:54,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.367816091954023) internal successors, (238), 178 states have internal predecessors, (238), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-19 07:42:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 389 transitions. [2022-11-19 07:42:54,799 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 389 transitions. Word has length 91 [2022-11-19 07:42:54,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:54,800 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 389 transitions. [2022-11-19 07:42:54,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.8125) internal successors, (45), 15 states have internal predecessors, (45), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-19 07:42:54,800 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 389 transitions. [2022-11-19 07:42:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 07:42:54,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:54,803 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:54,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:42:55,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:55,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 990561314, now seen corresponding path program 1 times [2022-11-19 07:42:55,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:55,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253098428] [2022-11-19 07:42:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:55,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:42:55,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:55,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253098428] [2022-11-19 07:42:55,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253098428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:55,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038508767] [2022-11-19 07:42:55,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:55,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:42:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:55,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:42:55,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:42:55,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:42:55,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038508767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:55,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1433588439] [2022-11-19 07:42:55,694 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:42:55,694 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:55,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:55,696 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:55,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:43:45,735 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-19 07:43:46,085 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 07:43:46,405 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-19 07:43:48,208 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-19 07:43:48,245 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 250 for LOIs [2022-11-19 07:43:48,933 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 257 for LOIs [2022-11-19 07:43:56,747 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 435 for LOIs [2022-11-19 07:43:57,404 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 468 for LOIs [2022-11-19 07:44:00,641 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 222 for LOIs [2022-11-19 07:44:00,676 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:44:35,841 WARN L233 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:44:42,708 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:44:48,047 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:44:56,569 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 508 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:09,752 WARN L233 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:30,382 WARN L233 SmtUtils]: Spent 20.27s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:54,661 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 468 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:27,244 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 435 DAG size of output: 241 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:34,066 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 454 DAG size of output: 249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:55,804 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 543 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:03,026 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 587 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:10,507 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 588 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:19,080 WARN L233 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 652 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:19,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1433588439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:19,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:47:19,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-19 07:47:19,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600958226] [2022-11-19 07:47:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:19,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-19 07:47:19,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-19 07:47:19,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3262, Unknown=0, NotChecked=0, Total=3422 [2022-11-19 07:47:19,088 INFO L87 Difference]: Start difference. First operand 276 states and 389 transitions. Second operand has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-19 07:47:30,751 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 458 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:55,347 WARN L233 SmtUtils]: Spent 24.05s on a formula simplification. DAG size of input: 504 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:06,314 WARN L233 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 458 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:17,400 WARN L233 SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 456 DAG size of output: 378 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:23,556 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 445 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:29,874 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 441 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:36,199 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 447 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:42,354 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 449 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:49:00,198 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 338 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:49:40,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:40,603 INFO L93 Difference]: Finished difference Result 663 states and 976 transitions. [2022-11-19 07:49:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-19 07:49:40,603 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 86 [2022-11-19 07:49:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:40,608 INFO L225 Difference]: With dead ends: 663 [2022-11-19 07:49:40,608 INFO L226 Difference]: Without dead ends: 433 [2022-11-19 07:49:40,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 201 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 304.6s TimeCoverageRelationStatistics Valid=257, Invalid=5293, Unknown=0, NotChecked=0, Total=5550 [2022-11-19 07:49:40,613 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 223 mSDsluCounter, 5398 mSDsCounter, 0 mSdLazyCounter, 6820 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 5628 SdHoareTripleChecker+Invalid, 6858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:40,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 5628 Invalid, 6858 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [38 Valid, 6820 Invalid, 0 Unknown, 0 Unchecked, 34.2s Time] [2022-11-19 07:49:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-19 07:49:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 350. [2022-11-19 07:49:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 230 states have (on average 1.3608695652173912) internal successors, (313), 235 states have internal predecessors, (313), 88 states have call successors, (88), 33 states have call predecessors, (88), 31 states have return successors, (88), 83 states have call predecessors, (88), 87 states have call successors, (88) [2022-11-19 07:49:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 489 transitions. [2022-11-19 07:49:40,972 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 489 transitions. Word has length 86 [2022-11-19 07:49:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:40,973 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 489 transitions. [2022-11-19 07:49:40,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-19 07:49:40,973 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 489 transitions. [2022-11-19 07:49:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 07:49:40,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:40,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:40,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:49:41,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:41,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:49:41,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2014060439, now seen corresponding path program 1 times [2022-11-19 07:49:41,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:41,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225318240] [2022-11-19 07:49:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:41,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:49:41,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:41,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225318240] [2022-11-19 07:49:41,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225318240] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:49:41,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931316266] [2022-11-19 07:49:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:41,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:41,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:49:41,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:49:41,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_179f7a90-50cf-46a4-a208-cd8be2737f3f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:49:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:41,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:49:41,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:49:41,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:49:41,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:49:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:49:41,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931316266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:49:41,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2030271370] [2022-11-19 07:49:41,995 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-19 07:49:41,995 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:49:41,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:49:41,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:49:41,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:39,478 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-19 07:50:39,864 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-19 07:50:39,948 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-11-19 07:50:40,036 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-11-19 07:50:40,123 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:50:40,514 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:50:55,945 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:02,446 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:24,955 WARN L233 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:33,198 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 486 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:38,913 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:48,129 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 508 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:52:00,266 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 632 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)