./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/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_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/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_8a41f22e-b2fe-447e-bc66-a4127667edb9/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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- 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 06:37:48,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:37:48,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:37:49,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:37:49,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:37:49,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:37:49,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:37:49,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:37:49,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:37:49,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:37:49,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:37:49,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:37:49,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:37:49,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:37:49,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:37:49,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:37:49,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:37:49,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:37:49,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:37:49,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:37:49,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:37:49,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:37:49,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:37:49,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:37:49,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:37:49,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:37:49,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:37:49,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:37:49,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:37:49,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:37:49,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:37:49,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:37:49,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:37:49,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:37:49,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:37:49,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:37:49,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:37:49,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:37:49,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:37:49,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:37:49,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:37:49,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:37:49,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:37:49,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:37:49,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:37:49,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:37:49,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:37:49,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:37:49,089 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:37:49,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:37:49,090 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:37:49,090 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:37:49,090 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:37:49,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:37:49,091 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:37:49,091 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:37:49,091 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:37:49,092 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:37:49,092 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:37:49,092 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:37:49,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:37:49,093 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:37:49,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:37:49,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:37:49,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:37:49,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:37:49,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:37:49,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:37:49,095 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:37:49,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:37:49,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:37:49,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:37:49,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:37:49,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:37:49,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:37:49,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:37:49,097 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:37:49,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:37:49,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:37:49,098 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:37:49,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:37:49,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:37:49,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:37:49,099 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_8a41f22e-b2fe-447e-bc66-a4127667edb9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2022-11-19 06:37:49,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:37:49,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:37:49,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:37:49,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:37:49,514 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:37:49,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-11-19 06:37:49,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/data/23965dd14/ded7e92c1f6541b89f90e3c577e529cb/FLAG983ee5807 [2022-11-19 06:37:50,251 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:37:50,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-11-19 06:37:50,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/data/23965dd14/ded7e92c1f6541b89f90e3c577e529cb/FLAG983ee5807 [2022-11-19 06:37:50,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/data/23965dd14/ded7e92c1f6541b89f90e3c577e529cb [2022-11-19 06:37:50,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:37:50,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:37:50,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:37:50,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:37:50,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:37:50,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:37:50" (1/1) ... [2022-11-19 06:37:50,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee497ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:50, skipping insertion in model container [2022-11-19 06:37:50,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:37:50" (1/1) ... [2022-11-19 06:37:50,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:37:50,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:37:50,890 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_8a41f22e-b2fe-447e-bc66-a4127667edb9/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-11-19 06:37:51,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:51,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:37:51,373 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_8a41f22e-b2fe-447e-bc66-a4127667edb9/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-11-19 06:37:51,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:51,485 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:37:51,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51 WrapperNode [2022-11-19 06:37:51,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:37:51,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:51,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:37:51,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:37:51,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,580 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 864 [2022-11-19 06:37:51,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:51,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:37:51,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:37:51,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:37:51,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:37:51,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:37:51,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:37:51,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:37:51,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (1/1) ... [2022-11-19 06:37:51,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:37:51,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:37:51,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:37:51,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:37:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 06:37:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 06:37:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 06:37:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 06:37:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 06:37:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 06:37:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 06:37:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 06:37:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 06:37:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 06:37:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 06:37:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 06:37:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 06:37:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 06:37:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 06:37:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 06:37:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 06:37:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 06:37:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 06:37:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 06:37:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 06:37:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:37:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 06:37:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 06:37:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 06:37:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 06:37:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 06:37:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 06:37:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 06:37:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 06:37:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 06:37:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 06:37:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 06:37:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 06:37:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 06:37:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 06:37:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 06:37:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 06:37:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:37:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 06:37:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 06:37:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:37:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:37:52,032 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:37:52,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:37:53,166 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:37:53,645 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:37:53,645 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:37:53,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:53 BoogieIcfgContainer [2022-11-19 06:37:53,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:37:53,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:37:53,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:37:53,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:37:53,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:37:50" (1/3) ... [2022-11-19 06:37:53,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c55cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:53, skipping insertion in model container [2022-11-19 06:37:53,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:51" (2/3) ... [2022-11-19 06:37:53,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c55cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:53, skipping insertion in model container [2022-11-19 06:37:53,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:53" (3/3) ... [2022-11-19 06:37:53,664 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2022-11-19 06:37:53,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:37:53,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:37:53,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:37:53,776 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;@205ae325, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:37:53,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:37:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-19 06:37:53,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 06:37:53,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:53,797 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] [2022-11-19 06:37:53,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1959815282, now seen corresponding path program 1 times [2022-11-19 06:37:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:53,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507394425] [2022-11-19 06:37:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:54,339 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 06:37:54,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:54,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507394425] [2022-11-19 06:37:54,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507394425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:54,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:54,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:37:54,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528421127] [2022-11-19 06:37:54,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:54,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:37:54,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:54,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:37:54,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:37:54,404 INFO L87 Difference]: Start difference. First operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:54,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:54,594 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2022-11-19 06:37:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:37:54,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2022-11-19 06:37:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:54,621 INFO L225 Difference]: With dead ends: 243 [2022-11-19 06:37:54,621 INFO L226 Difference]: Without dead ends: 160 [2022-11-19 06:37:54,627 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 06:37:54,632 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:54,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:37:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-19 06:37:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-19 06:37:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 97 states have internal predecessors, (124), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 06:37:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2022-11-19 06:37:54,719 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2022-11-19 06:37:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:54,721 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2022-11-19 06:37:54,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2022-11-19 06:37:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 06:37:54,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:54,726 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] [2022-11-19 06:37:54,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:37:54,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1814457245, now seen corresponding path program 1 times [2022-11-19 06:37:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447921958] [2022-11-19 06:37:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:55,021 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 06:37:55,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:55,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447921958] [2022-11-19 06:37:55,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447921958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:55,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:55,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890955819] [2022-11-19 06:37:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:55,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:55,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:55,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:55,027 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:55,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:55,156 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2022-11-19 06:37:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:55,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-11-19 06:37:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:55,159 INFO L225 Difference]: With dead ends: 239 [2022-11-19 06:37:55,160 INFO L226 Difference]: Without dead ends: 162 [2022-11-19 06:37:55,161 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 06:37:55,163 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:55,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:37:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-19 06:37:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-19 06:37:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 06:37:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2022-11-19 06:37:55,184 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2022-11-19 06:37:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:55,185 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2022-11-19 06:37:55,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2022-11-19 06:37:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 06:37:55,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:55,190 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] [2022-11-19 06:37:55,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:37:55,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:55,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:55,191 INFO L85 PathProgramCache]: Analyzing trace with hash 227648781, now seen corresponding path program 1 times [2022-11-19 06:37:55,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:55,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695747962] [2022-11-19 06:37:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:55,338 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 06:37:55,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:55,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695747962] [2022-11-19 06:37:55,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695747962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:55,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:55,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:55,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752550897] [2022-11-19 06:37:55,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:55,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:55,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:55,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:55,343 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:55,502 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2022-11-19 06:37:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:55,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2022-11-19 06:37:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:55,505 INFO L225 Difference]: With dead ends: 354 [2022-11-19 06:37:55,505 INFO L226 Difference]: Without dead ends: 210 [2022-11-19 06:37:55,507 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 06:37:55,514 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 57 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:55,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 385 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:37:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-19 06:37:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2022-11-19 06:37:55,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3984375) internal successors, (179), 131 states have internal predecessors, (179), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-19 06:37:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2022-11-19 06:37:55,546 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2022-11-19 06:37:55,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:55,548 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2022-11-19 06:37:55,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:37:55,550 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2022-11-19 06:37:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 06:37:55,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:55,563 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 06:37:55,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:37:55,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:55,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:55,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1387919924, now seen corresponding path program 1 times [2022-11-19 06:37:55,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:55,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088293002] [2022-11-19 06:37:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:55,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:55,853 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 06:37:55,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:55,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088293002] [2022-11-19 06:37:55,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088293002] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:37:55,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83110615] [2022-11-19 06:37:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:55,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:37:55,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:37:55,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:37:55,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:37:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:56,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:37:56,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:37:56,360 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 06:37:56,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:37:56,470 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 06:37:56,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83110615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:37:56,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [740040117] [2022-11-19 06:37:56,500 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-19 06:37:56,501 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:37:56,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:37:56,513 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:37:56,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:38:51,099 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 06:38:51,422 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:38:51,747 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-11-19 06:39:25,483 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-11-19 06:39:25,800 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-19 06:39:37,143 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 441 for LOIs [2022-11-19 06:39:37,441 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-11-19 06:39:38,202 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-11-19 06:39:38,253 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:40:16,035 WARN L233 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:40:22,248 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 490 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:40:34,340 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 512 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:40:56,498 WARN L233 SmtUtils]: Spent 21.80s on a formula simplification. DAG size of input: 594 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:41:18,345 WARN L233 SmtUtils]: Spent 21.46s on a formula simplification. DAG size of input: 596 DAG size of output: 469 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:41:24,881 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 356 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:41:30,268 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 568 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:41:38,695 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 587 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:42:04,117 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 524 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:42:18,314 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 520 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:42:27,152 WARN L233 SmtUtils]: Spent 8.28s on a formula simplification. DAG size of input: 533 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:42:32,731 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 469 DAG size of output: 285 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:42:38,370 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 473 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:11,071 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 570 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:22,823 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 581 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:27,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [740040117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:27,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:43:27,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-19 06:43:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291299537] [2022-11-19 06:43:27,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:27,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-19 06:43:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-19 06:43:27,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=2423, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 06:43:27,445 INFO L87 Difference]: Start difference. First operand 205 states and 292 transitions. Second operand has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-19 06:43:42,772 WARN L233 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 546 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:43:54,469 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 548 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:09,226 WARN L233 SmtUtils]: Spent 14.19s on a formula simplification. DAG size of input: 600 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:25,362 WARN L233 SmtUtils]: Spent 15.51s on a formula simplification. DAG size of input: 601 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:40,561 WARN L233 SmtUtils]: Spent 14.47s on a formula simplification. DAG size of input: 602 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:44:52,742 WARN L233 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 586 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:45:11,024 WARN L233 SmtUtils]: Spent 16.92s on a formula simplification. DAG size of input: 604 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:45:36,951 WARN L233 SmtUtils]: Spent 24.73s on a formula simplification. DAG size of input: 599 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:46:14,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:14,821 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-11-19 06:46:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-19 06:46:14,823 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 79 [2022-11-19 06:46:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:14,828 INFO L225 Difference]: With dead ends: 540 [2022-11-19 06:46:14,828 INFO L226 Difference]: Without dead ends: 353 [2022-11-19 06:46:14,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 362.7s TimeCoverageRelationStatistics Valid=214, Invalid=3568, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 06:46:14,832 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 318 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 6280 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 6314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:14,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 5493 Invalid, 6314 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [34 Valid, 6280 Invalid, 0 Unknown, 0 Unchecked, 33.0s Time] [2022-11-19 06:46:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-19 06:46:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 294. [2022-11-19 06:46:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 199 states have (on average 1.3869346733668342) internal successors, (276), 203 states have internal predecessors, (276), 69 states have call successors, (69), 26 states have call predecessors, (69), 25 states have return successors, (69), 66 states have call predecessors, (69), 68 states have call successors, (69) [2022-11-19 06:46:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2022-11-19 06:46:15,100 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 79 [2022-11-19 06:46:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:15,101 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2022-11-19 06:46:15,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 28 states have internal predecessors, (40), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-19 06:46:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2022-11-19 06:46:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 06:46:15,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:15,104 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] [2022-11-19 06:46:15,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:46:15,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:15,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:46:15,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash 719779240, now seen corresponding path program 1 times [2022-11-19 06:46:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:15,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472162520] [2022-11-19 06:46:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:15,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:15,524 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 06:46:15,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472162520] [2022-11-19 06:46:15,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472162520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460306011] [2022-11-19 06:46:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:15,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:15,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:15,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:15,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:46:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:15,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:46:15,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:15,896 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 06:46:15,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:15,982 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 06:46:15,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460306011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:46:15,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1805488650] [2022-11-19 06:46:15,990 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-11-19 06:46:15,990 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:46:15,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:46:15,993 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:46:15,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:47:05,173 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 06:47:05,486 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:47:05,937 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:47:32,083 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 468 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:47:43,673 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:01,388 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 512 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:14,686 WARN L233 SmtUtils]: Spent 12.98s on a formula simplification. DAG size of input: 583 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:35,079 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 580 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:42,265 WARN L233 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 551 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:48,957 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 553 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:57,931 WARN L233 SmtUtils]: Spent 8.52s on a formula simplification. DAG size of input: 584 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:48:58,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1805488650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:48:58,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:48:58,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 06:48:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782414374] [2022-11-19 06:48:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:48:58,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 06:48:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:48:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 06:48:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-19 06:48:58,145 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-19 06:49:18,326 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 410 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:29,092 WARN L233 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 521 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:37,175 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 571 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:49:45,772 WARN L233 SmtUtils]: Spent 7.92s 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 06:49:55,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:55,209 INFO L93 Difference]: Finished difference Result 597 states and 893 transitions. [2022-11-19 06:49:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-19 06:49:55,211 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2022-11-19 06:49:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:55,220 INFO L225 Difference]: With dead ends: 597 [2022-11-19 06:49:55,220 INFO L226 Difference]: Without dead ends: 410 [2022-11-19 06:49:55,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 159.1s TimeCoverageRelationStatistics Valid=196, Invalid=1286, Unknown=0, NotChecked=0, Total=1482 [2022-11-19 06:49:55,223 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 146 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:55,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3096 Invalid, 2175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-19 06:49:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-19 06:49:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 337. [2022-11-19 06:49:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 239 states have (on average 1.4309623430962344) internal successors, (342), 244 states have internal predecessors, (342), 71 states have call successors, (71), 27 states have call predecessors, (71), 26 states have return successors, (71), 67 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-19 06:49:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 484 transitions. [2022-11-19 06:49:55,499 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 484 transitions. Word has length 85 [2022-11-19 06:49:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:55,500 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 484 transitions. [2022-11-19 06:49:55,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-19 06:49:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 484 transitions. [2022-11-19 06:49:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-19 06:49:55,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:55,503 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] [2022-11-19 06:49:55,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 06:49:55,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:49:55,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:49:55,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash 462120641, now seen corresponding path program 1 times [2022-11-19 06:49:55,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:55,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791336987] [2022-11-19 06:49:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:55,909 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 06:49:55,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:55,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791336987] [2022-11-19 06:49:55,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791336987] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:49:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145338792] [2022-11-19 06:49:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:55,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:49:55,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:49:55,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:49:55,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a41f22e-b2fe-447e-bc66-a4127667edb9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:49:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:56,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:49:56,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:49:56,297 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 06:49:56,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:49:56,390 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 06:49:56,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145338792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:49:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1033632798] [2022-11-19 06:49:56,396 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-19 06:49:56,397 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:49:56,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:49:56,397 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:49:56,398 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:50:41,758 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 06:50:42,058 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-19 06:50:42,125 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-11-19 06:50:42,194 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-11-19 06:50:42,272 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:50:42,582 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:51:17,504 WARN L233 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 480 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)