./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/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_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 11:33:52,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:33:52,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:33:52,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:33:52,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:33:52,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:33:52,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:33:52,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:33:52,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:33:52,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:33:52,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:33:52,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:33:52,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:33:52,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:33:52,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:33:52,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:33:52,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:33:52,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:33:52,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:33:52,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:33:52,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:33:52,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:33:52,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:33:52,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:33:52,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:33:52,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:33:52,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:33:52,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:33:52,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:33:52,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:33:52,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:33:52,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:33:52,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:33:52,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:33:52,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:33:52,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:33:52,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:33:52,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:33:52,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:33:52,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:33:52,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:33:52,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:33:52,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:33:52,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:33:52,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:33:52,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:33:52,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:33:52,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:33:52,177 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:33:52,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:33:52,178 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:33:52,178 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:33:52,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:33:52,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:33:52,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:33:52,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:33:52,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:33:52,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:33:52,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:33:52,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:33:52,180 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_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2022-12-14 11:33:52,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:33:52,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:33:52,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:33:52,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:33:52,413 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:33:52,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-12-14 11:33:55,058 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:33:55,274 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:33:55,274 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2022-12-14 11:33:55,287 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/data/eb06a8625/6403a6362e8c4a928ebce8234950713a/FLAG752081c57 [2022-12-14 11:33:55,301 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/data/eb06a8625/6403a6362e8c4a928ebce8234950713a [2022-12-14 11:33:55,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:33:55,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:33:55,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:33:55,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:33:55,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:33:55,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:55,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da7ec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55, skipping insertion in model container [2022-12-14 11:33:55,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:55,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:33:55,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:33:55,561 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-12-14 11:33:55,616 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,622 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,637 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,779 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,781 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,800 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,801 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,804 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:33:55,853 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:33:55,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2022-12-14 11:33:55,871 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,873 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,878 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,934 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,935 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,937 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,940 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:33:55,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:33:55,982 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:33:55,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55 WrapperNode [2022-12-14 11:33:55,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:33:55,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:33:55,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:33:55,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:33:55,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,050 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 864 [2022-12-14 11:33:56,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:33:56,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:33:56,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:33:56,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:33:56,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:33:56,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:33:56,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:33:56,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:33:56,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (1/1) ... [2022-12-14 11:33:56,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:33:56,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:33:56,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:33:56,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:33:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 11:33:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 11:33:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 11:33:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 11:33:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 11:33:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 11:33:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:33:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:33:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:33:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:33:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:33:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:33:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 11:33:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 11:33:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:33:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:33:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:33:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:33:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:33:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:33:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:33:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:33:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 11:33:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 11:33:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:33:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:33:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:33:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:33:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:33:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:33:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:33:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:33:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 11:33:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 11:33:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:33:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:33:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:33:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:33:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:33:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:33:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:33:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:33:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:33:56,298 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:33:56,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:33:56,811 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:33:57,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:33:57,119 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:33:57,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:33:57 BoogieIcfgContainer [2022-12-14 11:33:57,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:33:57,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:33:57,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:33:57,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:33:57,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:33:55" (1/3) ... [2022-12-14 11:33:57,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9c2bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:33:57, skipping insertion in model container [2022-12-14 11:33:57,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:55" (2/3) ... [2022-12-14 11:33:57,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9c2bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:33:57, skipping insertion in model container [2022-12-14 11:33:57,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:33:57" (3/3) ... [2022-12-14 11:33:57,130 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2022-12-14 11:33:57,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:33:57,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:33:57,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:33:57,200 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;@3bf81eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:33:57,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:33:57,204 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) [2022-12-14 11:33:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 11:33:57,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:57,213 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] [2022-12-14 11:33:57,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:33:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:57,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1900184316, now seen corresponding path program 1 times [2022-12-14 11:33:57,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:57,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537683508] [2022-12-14 11:33:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:57,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:57,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:57,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537683508] [2022-12-14 11:33:57,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537683508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:57,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:57,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:33:57,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716856405] [2022-12-14 11:33:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:57,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:33:57,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:57,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:33:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:33:57,520 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) [2022-12-14 11:33:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:57,625 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2022-12-14 11:33:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:33:57,628 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 [2022-12-14 11:33:57,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:57,637 INFO L225 Difference]: With dead ends: 243 [2022-12-14 11:33:57,638 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 11:33:57,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:33:57,644 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 [2022-12-14 11:33:57,645 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] [2022-12-14 11:33:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 11:33:57,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-12-14 11:33:57,686 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) [2022-12-14 11:33:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2022-12-14 11:33:57,691 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2022-12-14 11:33:57,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:57,693 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2022-12-14 11:33:57,693 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) [2022-12-14 11:33:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2022-12-14 11:33:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:33:57,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:57,697 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] [2022-12-14 11:33:57,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:33:57,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:33:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2059133351, now seen corresponding path program 1 times [2022-12-14 11:33:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:57,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212548762] [2022-12-14 11:33:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:57,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:57,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:57,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212548762] [2022-12-14 11:33:57,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212548762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:57,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:57,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:33:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276727729] [2022-12-14 11:33:57,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:57,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:33:57,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:57,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:33:57,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:33:57,897 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) [2022-12-14 11:33:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:57,992 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2022-12-14 11:33:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:33:57,992 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 [2022-12-14 11:33:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:57,994 INFO L225 Difference]: With dead ends: 239 [2022-12-14 11:33:57,994 INFO L226 Difference]: Without dead ends: 162 [2022-12-14 11:33:57,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:33:57,995 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 [2022-12-14 11:33:57,995 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] [2022-12-14 11:33:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-12-14 11:33:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-12-14 11:33:58,005 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) [2022-12-14 11:33:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2022-12-14 11:33:58,006 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2022-12-14 11:33:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:58,006 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2022-12-14 11:33:58,006 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) [2022-12-14 11:33:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2022-12-14 11:33:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 11:33:58,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:58,008 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] [2022-12-14 11:33:58,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:33:58,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:33:58,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1889934530, now seen corresponding path program 1 times [2022-12-14 11:33:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:58,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614114571] [2022-12-14 11:33:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:58,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:58,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614114571] [2022-12-14 11:33:58,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614114571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:58,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:58,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:33:58,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831259999] [2022-12-14 11:33:58,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:58,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:33:58,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:33:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:33:58,091 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) [2022-12-14 11:33:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:58,190 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2022-12-14 11:33:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:33:58,190 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 [2022-12-14 11:33:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:58,192 INFO L225 Difference]: With dead ends: 354 [2022-12-14 11:33:58,193 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 11:33:58,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:33:58,195 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 [2022-12-14 11:33:58,196 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] [2022-12-14 11:33:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 11:33:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2022-12-14 11:33:58,216 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) [2022-12-14 11:33:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2022-12-14 11:33:58,218 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2022-12-14 11:33:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:58,218 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2022-12-14 11:33:58,218 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) [2022-12-14 11:33:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2022-12-14 11:33:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:33:58,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:58,221 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] [2022-12-14 11:33:58,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:33:58,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:33:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:58,222 INFO L85 PathProgramCache]: Analyzing trace with hash -714065461, now seen corresponding path program 1 times [2022-12-14 11:33:58,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:58,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721084663] [2022-12-14 11:33:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:58,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:58,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721084663] [2022-12-14 11:33:58,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721084663] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:33:58,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224465820] [2022-12-14 11:33:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:58,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:33:58,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:33:58,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:33:58,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:33:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:58,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:33:58,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:33:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:58,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:33:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:33:58,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224465820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:33:58,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1908377297] [2022-12-14 11:33:58,748 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 11:33:58,749 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:33:58,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:33:58,758 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:33:58,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:34:26,061 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:34:26,355 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:34:26,649 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 11:34:28,266 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 11:34:28,303 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 11:34:42,429 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 452 for LOIs [2022-12-14 11:34:42,988 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 11:34:46,098 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 246 for LOIs [2022-12-14 11:34:46,136 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:35:27,518 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 569 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:36:18,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1908377297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:18,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:36:18,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-12-14 11:36:18,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350013896] [2022-12-14 11:36:18,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:18,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 11:36:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 11:36:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2415, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 11:36:18,053 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) [2022-12-14 11:36:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:54,845 INFO L93 Difference]: Finished difference Result 595 states and 931 transitions. [2022-12-14 11:36:54,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 11:36:54,846 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 [2022-12-14 11:36:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:54,848 INFO L225 Difference]: With dead ends: 595 [2022-12-14 11:36:54,848 INFO L226 Difference]: Without dead ends: 408 [2022-12-14 11:36:54,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 110.3s TimeCoverageRelationStatistics Valid=200, Invalid=3340, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 11:36:54,850 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 331 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 6285 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 6314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:54,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 5141 Invalid, 6314 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 6285 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2022-12-14 11:36:54,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-12-14 11:36:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 313. [2022-12-14 11:36:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 218 states have (on average 1.4495412844036697) internal successors, (316), 222 states have internal predecessors, (316), 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) [2022-12-14 11:36:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 454 transitions. [2022-12-14 11:36:55,002 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 454 transitions. Word has length 79 [2022-12-14 11:36:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:55,003 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 454 transitions. [2022-12-14 11:36:55,003 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) [2022-12-14 11:36:55,003 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 454 transitions. [2022-12-14 11:36:55,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 11:36:55,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:55,005 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] [2022-12-14 11:36:55,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:36:55,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:36:55,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:36:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1476692903, now seen corresponding path program 1 times [2022-12-14 11:36:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:55,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339617778] [2022-12-14 11:36:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:55,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:36:55,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:55,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339617778] [2022-12-14 11:36:55,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339617778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:55,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:55,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:36:55,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237584567] [2022-12-14 11:36:55,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:55,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:36:55,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:36:55,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:55,278 INFO L87 Difference]: Start difference. First operand 313 states and 454 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:36:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:55,539 INFO L93 Difference]: Finished difference Result 699 states and 1042 transitions. [2022-12-14 11:36:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:36:55,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-12-14 11:36:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:55,543 INFO L225 Difference]: With dead ends: 699 [2022-12-14 11:36:55,543 INFO L226 Difference]: Without dead ends: 428 [2022-12-14 11:36:55,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:55,545 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 55 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:55,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 396 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:36:55,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-12-14 11:36:55,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 421. [2022-12-14 11:36:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 301 states have (on average 1.4817275747508305) internal successors, (446), 305 states have internal predecessors, (446), 94 states have call successors, (94), 26 states have call predecessors, (94), 25 states have return successors, (94), 91 states have call predecessors, (94), 93 states have call successors, (94) [2022-12-14 11:36:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 634 transitions. [2022-12-14 11:36:55,738 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 634 transitions. Word has length 84 [2022-12-14 11:36:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:55,738 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 634 transitions. [2022-12-14 11:36:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:36:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 634 transitions. [2022-12-14 11:36:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 11:36:55,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:55,740 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] [2022-12-14 11:36:55,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:36:55,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:36:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:55,740 INFO L85 PathProgramCache]: Analyzing trace with hash 355534975, now seen corresponding path program 1 times [2022-12-14 11:36:55,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:55,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851275422] [2022-12-14 11:36:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:55,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:36:55,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:55,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851275422] [2022-12-14 11:36:55,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851275422] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:36:55,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804182404] [2022-12-14 11:36:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:55,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:36:55,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:36:55,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:36:55,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:36:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:56,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:36:56,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:36:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:36:56,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:36:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:36:56,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804182404] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:36:56,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [737877239] [2022-12-14 11:36:56,090 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 11:36:56,091 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:36:56,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:36:56,091 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:36:56,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:37:35,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:37:35,869 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:37:36,159 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:38:13,076 WARN L233 SmtUtils]: Spent 7.50s 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) [2022-12-14 11:38:35,436 WARN L233 SmtUtils]: Spent 5.45s 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) [2022-12-14 11:38:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [737877239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:35,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:38:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:38:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759210012] [2022-12-14 11:38:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:35,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:38:35,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:35,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:38:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:38:35,580 INFO L87 Difference]: Start difference. First operand 421 states and 634 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) [2022-12-14 11:38:57,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:57,736 INFO L93 Difference]: Finished difference Result 805 states and 1254 transitions. [2022-12-14 11:38:57,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 11:38:57,737 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 [2022-12-14 11:38:57,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:57,739 INFO L225 Difference]: With dead ends: 805 [2022-12-14 11:38:57,739 INFO L226 Difference]: Without dead ends: 528 [2022-12-14 11:38:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 74.9s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 11:38:57,740 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 152 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:57,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3113 Invalid, 2216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 11:38:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-12-14 11:38:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 477. [2022-12-14 11:38:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 354 states have (on average 1.497175141242938) internal successors, (530), 359 states have internal predecessors, (530), 96 states have call successors, (96), 27 states have call predecessors, (96), 26 states have return successors, (96), 92 states have call predecessors, (96), 95 states have call successors, (96) [2022-12-14 11:38:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 722 transitions. [2022-12-14 11:38:57,990 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 722 transitions. Word has length 85 [2022-12-14 11:38:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:57,991 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 722 transitions. [2022-12-14 11:38:57,991 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) [2022-12-14 11:38:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 722 transitions. [2022-12-14 11:38:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 11:38:57,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:57,992 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] [2022-12-14 11:38:57,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:38:58,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:38:58,194 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1470616650, now seen corresponding path program 1 times [2022-12-14 11:38:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:58,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325070970] [2022-12-14 11:38:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:58,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:58,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325070970] [2022-12-14 11:38:58,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325070970] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:38:58,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470801242] [2022-12-14 11:38:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:58,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:38:58,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:38:58,314 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:38:58,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:38:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:58,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:38:58,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:38:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:58,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:38:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:58,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470801242] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:38:58,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1214793193] [2022-12-14 11:38:58,606 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 11:38:58,606 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:38:58,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:38:58,606 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:38:58,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:38,552 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:39:38,838 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 11:39:38,901 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 11:39:38,964 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-12-14 11:39:39,027 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:39:39,321 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:40:12,176 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:40:18,411 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:40:30,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1214793193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:30,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:40:30,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 11:40:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269904723] [2022-12-14 11:40:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:30,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 11:40:30,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:30,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 11:40:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:40:30,027 INFO L87 Difference]: Start difference. First operand 477 states and 722 transitions. Second operand has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 11:40:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:44,336 INFO L93 Difference]: Finished difference Result 874 states and 1361 transitions. [2022-12-14 11:40:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:40:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 88 [2022-12-14 11:40:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:44,339 INFO L225 Difference]: With dead ends: 874 [2022-12-14 11:40:44,339 INFO L226 Difference]: Without dead ends: 597 [2022-12-14 11:40:44,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 54.9s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:40:44,341 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 194 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:44,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 3380 Invalid, 3244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-12-14 11:40:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-12-14 11:40:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 544. [2022-12-14 11:40:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 414 states have (on average 1.5048309178743962) internal successors, (623), 420 states have internal predecessors, (623), 100 states have call successors, (100), 30 states have call predecessors, (100), 29 states have return successors, (100), 95 states have call predecessors, (100), 99 states have call successors, (100) [2022-12-14 11:40:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 823 transitions. [2022-12-14 11:40:44,668 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 823 transitions. Word has length 88 [2022-12-14 11:40:44,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:44,668 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 823 transitions. [2022-12-14 11:40:44,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 11:40:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 823 transitions. [2022-12-14 11:40:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 11:40:44,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:44,670 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:40:44,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:40:44,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:44,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:40:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash -304341593, now seen corresponding path program 1 times [2022-12-14 11:40:44,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:44,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506678214] [2022-12-14 11:40:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:40:45,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:45,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506678214] [2022-12-14 11:40:45,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506678214] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:40:45,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589046763] [2022-12-14 11:40:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:45,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:45,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:40:45,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:40:45,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:40:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:45,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:40:45,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:40:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:40:45,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:40:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:40:45,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589046763] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:40:45,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [35606249] [2022-12-14 11:40:45,721 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 11:40:45,721 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:40:45,722 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:40:45,722 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:40:45,722 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:41:55,647 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:41:55,936 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2022-12-14 11:41:56,235 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 11:41:57,720 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 11:41:57,758 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 11:42:04,307 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 447 for LOIs [2022-12-14 11:42:04,857 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 468 for LOIs [2022-12-14 11:42:09,466 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 243 for LOIs [2022-12-14 11:42:09,506 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:42:58,116 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 571 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:55,130 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 576 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:57,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [35606249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:43:57,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:43:57,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [14, 5, 5] total 66 [2022-12-14 11:43:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421544631] [2022-12-14 11:43:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:43:57,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 11:43:57,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:43:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 11:43:57,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=3916, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 11:43:57,520 INFO L87 Difference]: Start difference. First operand 544 states and 823 transitions. Second operand has 50 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 16 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 11:44:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:44:37,329 INFO L93 Difference]: Finished difference Result 1007 states and 1564 transitions. [2022-12-14 11:44:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 11:44:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 16 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 90 [2022-12-14 11:44:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:44:37,333 INFO L225 Difference]: With dead ends: 1007 [2022-12-14 11:44:37,333 INFO L226 Difference]: Without dead ends: 730 [2022-12-14 11:44:37,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 126.2s TimeCoverageRelationStatistics Valid=485, Invalid=5215, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 11:44:37,335 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 326 mSDsluCounter, 4859 mSDsCounter, 0 mSdLazyCounter, 7007 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 5100 SdHoareTripleChecker+Invalid, 7058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 7007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:44:37,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 5100 Invalid, 7058 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [51 Valid, 7007 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2022-12-14 11:44:37,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-12-14 11:44:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 556. [2022-12-14 11:44:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 421 states have (on average 1.503562945368171) internal successors, (633), 428 states have internal predecessors, (633), 103 states have call successors, (103), 32 states have call predecessors, (103), 31 states have return successors, (103), 97 states have call predecessors, (103), 102 states have call successors, (103) [2022-12-14 11:44:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 839 transitions. [2022-12-14 11:44:37,746 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 839 transitions. Word has length 90 [2022-12-14 11:44:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:44:37,746 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 839 transitions. [2022-12-14 11:44:37,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 16 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 11:44:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 839 transitions. [2022-12-14 11:44:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 11:44:37,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:44:37,748 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, 1, 1] [2022-12-14 11:44:37,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 11:44:37,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:44:37,949 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:44:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:44:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash -406527611, now seen corresponding path program 1 times [2022-12-14 11:44:37,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:44:37,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662044165] [2022-12-14 11:44:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:37,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:44:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:44:38,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:44:38,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662044165] [2022-12-14 11:44:38,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662044165] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:44:38,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068613857] [2022-12-14 11:44:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:38,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:44:38,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:44:38,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:44:38,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:44:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:38,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:44:38,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:44:38,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:44:38,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:44:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:44:38,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068613857] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:44:38,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [933894050] [2022-12-14 11:44:38,629 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 11:44:38,630 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:44:38,630 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:44:38,630 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:44:38,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:45:29,875 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 11:45:30,173 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 11:45:30,234 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 11:45:30,299 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 242 for LOIs [2022-12-14 11:45:31,579 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-12-14 11:45:31,643 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 222 for LOIs [2022-12-14 11:45:31,677 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:45:31,961 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 242 for LOIs [2022-12-14 11:45:32,740 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 212 for LOIs [2022-12-14 11:45:32,769 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 222 for LOIs [2022-12-14 11:45:32,802 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:46:12,146 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 642 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:46:17,968 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 644 DAG size of output: 413 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:46:57,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [933894050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:46:57,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:46:57,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [14, 5, 5] total 64 [2022-12-14 11:46:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790978616] [2022-12-14 11:46:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:46:57,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 11:46:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:46:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 11:46:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=3699, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 11:46:57,103 INFO L87 Difference]: Start difference. First operand 556 states and 839 transitions. Second operand has 48 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 28 states have internal predecessors, (46), 15 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) [2022-12-14 11:47:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:47:25,212 INFO L93 Difference]: Finished difference Result 947 states and 1471 transitions. [2022-12-14 11:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 11:47:25,214 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 28 states have internal predecessors, (46), 15 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) Word has length 93 [2022-12-14 11:47:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:47:25,216 INFO L225 Difference]: With dead ends: 947 [2022-12-14 11:47:25,216 INFO L226 Difference]: Without dead ends: 670 [2022-12-14 11:47:25,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 93.6s TimeCoverageRelationStatistics Valid=386, Invalid=4306, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 11:47:25,219 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 170 mSDsluCounter, 5251 mSDsCounter, 0 mSdLazyCounter, 6753 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 5491 SdHoareTripleChecker+Invalid, 6771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 6753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:47:25,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 5491 Invalid, 6771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 6753 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2022-12-14 11:47:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-14 11:47:25,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 596. [2022-12-14 11:47:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 453 states have (on average 1.4944812362030906) internal successors, (677), 460 states have internal predecessors, (677), 108 states have call successors, (108), 37 states have call predecessors, (108), 34 states have return successors, (108), 100 states have call predecessors, (108), 107 states have call successors, (108) [2022-12-14 11:47:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 893 transitions. [2022-12-14 11:47:25,714 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 893 transitions. Word has length 93 [2022-12-14 11:47:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:47:25,715 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 893 transitions. [2022-12-14 11:47:25,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 28 states have internal predecessors, (46), 15 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) [2022-12-14 11:47:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 893 transitions. [2022-12-14 11:47:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 11:47:25,716 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:47:25,716 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, 1, 1, 1, 1, 1] [2022-12-14 11:47:25,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:47:25,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:47:25,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:47:25,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:47:25,919 INFO L85 PathProgramCache]: Analyzing trace with hash 238199217, now seen corresponding path program 1 times [2022-12-14 11:47:25,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:47:25,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011117307] [2022-12-14 11:47:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:47:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:47:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:47:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:47:26,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:47:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011117307] [2022-12-14 11:47:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011117307] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:47:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843416448] [2022-12-14 11:47:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:47:26,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:47:26,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:47:26,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:47:26,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff001833-4db7-4b43-87dc-fedc94149646/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:47:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:47:26,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:47:26,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:47:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:47:26,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:47:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:47:26,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843416448] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:47:26,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1825614331] [2022-12-14 11:47:26,331 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 11:47:26,331 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:47:26,332 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:47:26,332 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:47:26,332 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs