./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7 --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 a65335ed794a80f1ca394ca36923b36cd04a5678d21ae98cca1d59ae759f86b2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:51:05,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:51:05,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:51:05,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:51:05,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:51:05,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:51:05,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:51:05,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:51:05,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:51:05,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:51:05,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:51:05,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:51:05,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:51:05,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:51:05,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:51:05,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:51:05,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:51:05,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:51:05,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:51:05,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:51:05,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:51:05,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:51:05,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:51:05,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:51:05,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:51:05,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:51:05,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:51:05,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:51:05,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:51:05,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:51:05,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:51:05,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:51:05,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:51:05,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:51:05,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:51:05,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:51:05,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:51:05,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:51:05,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:51:05,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:51:05,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:51:05,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:51:05,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:51:05,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:51:05,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:51:05,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:51:05,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:51:05,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:51:05,309 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:51:05,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:51:05,309 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:51:05,309 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:51:05,310 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:51:05,311 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:51:05,311 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:51:05,311 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:51:05,311 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:51:05,312 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:51:05,312 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:51:05,312 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:51:05,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:51:05,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:51:05,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:51:05,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:51:05,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:51:05,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:51:05,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:51:05,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:51:05,317 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:51:05,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:51:05,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:51:05,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:51:05,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:51:05,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:51:05,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:51:05,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:51:05,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:51:05,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:51:05,319 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:51:05,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:51:05,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:51:05,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:51:05,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:51:05,321 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a65335ed794a80f1ca394ca36923b36cd04a5678d21ae98cca1d59ae759f86b2 [2021-11-25 17:51:05,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:51:05,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:51:05,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:51:05,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:51:05,619 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:51:05,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2021-11-25 17:51:05,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/data/2aa31d95c/fa0f01a43dd34f87a79e73cf8f1bf627/FLAGc04d38378 [2021-11-25 17:51:06,157 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:51:06,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2021-11-25 17:51:06,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/data/2aa31d95c/fa0f01a43dd34f87a79e73cf8f1bf627/FLAGc04d38378 [2021-11-25 17:51:06,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/data/2aa31d95c/fa0f01a43dd34f87a79e73cf8f1bf627 [2021-11-25 17:51:06,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:51:06,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:51:06,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:51:06,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:51:06,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:51:06,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190741f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06, skipping insertion in model container [2021-11-25 17:51:06,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:51:06,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:51:06,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i[840,853] [2021-11-25 17:51:06,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:06,776 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:51:06,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i[840,853] [2021-11-25 17:51:06,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:06,818 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:51:06,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06 WrapperNode [2021-11-25 17:51:06,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:51:06,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:06,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:51:06,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:51:06,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,863 INFO L137 Inliner]: procedures = 41, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 136 [2021-11-25 17:51:06,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:06,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:51:06,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:51:06,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:51:06,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:51:06,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:51:06,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:51:06,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:51:06,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (1/1) ... [2021-11-25 17:51:06,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:51:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:06,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:51:06,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:51:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:51:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:51:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:51:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:51:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:51:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 17:51:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:51:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:51:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:51:07,055 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:51:07,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:51:07,293 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:51:07,390 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:51:07,390 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 17:51:07,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:51:07 BoogieIcfgContainer [2021-11-25 17:51:07,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:51:07,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:51:07,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:51:07,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:51:07,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:51:06" (1/3) ... [2021-11-25 17:51:07,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463991da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:51:07, skipping insertion in model container [2021-11-25 17:51:07,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:06" (2/3) ... [2021-11-25 17:51:07,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463991da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:51:07, skipping insertion in model container [2021-11-25 17:51:07,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:51:07" (3/3) ... [2021-11-25 17:51:07,402 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i [2021-11-25 17:51:07,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:51:07,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:51:07,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:51:07,458 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:51:07,459 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:51:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:07,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 17:51:07,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:07,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:07,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:07,485 INFO L85 PathProgramCache]: Analyzing trace with hash -211002652, now seen corresponding path program 1 times [2021-11-25 17:51:07,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:07,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66721773] [2021-11-25 17:51:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:07,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:07,655 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66721773] [2021-11-25 17:51:07,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66721773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:07,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:07,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:51:07,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803253234] [2021-11-25 17:51:07,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:07,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 17:51:07,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 17:51:07,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:51:07,692 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:07,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:07,728 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2021-11-25 17:51:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 17:51:07,730 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 17:51:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:07,737 INFO L225 Difference]: With dead ends: 38 [2021-11-25 17:51:07,738 INFO L226 Difference]: Without dead ends: 17 [2021-11-25 17:51:07,740 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:51:07,744 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:07,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:51:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-25 17:51:07,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-25 17:51:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-11-25 17:51:07,776 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2021-11-25 17:51:07,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:07,777 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-25 17:51:07,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-25 17:51:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:51:07,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:07,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:07,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:51:07,779 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:07,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:07,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1792796919, now seen corresponding path program 1 times [2021-11-25 17:51:07,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:07,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937038394] [2021-11-25 17:51:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:07,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:08,075 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:08,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937038394] [2021-11-25 17:51:08,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937038394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:08,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:08,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:51:08,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646926974] [2021-11-25 17:51:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:08,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 17:51:08,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 17:51:08,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:51:08,080 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:08,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:08,281 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2021-11-25 17:51:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:51:08,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:51:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:08,284 INFO L225 Difference]: With dead ends: 55 [2021-11-25 17:51:08,284 INFO L226 Difference]: Without dead ends: 35 [2021-11-25 17:51:08,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:51:08,293 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 34 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:08,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 72 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:51:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-25 17:51:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 21. [2021-11-25 17:51:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-25 17:51:08,311 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2021-11-25 17:51:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:08,313 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-25 17:51:08,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-25 17:51:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 17:51:08,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:08,319 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:08,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:51:08,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash 783629684, now seen corresponding path program 1 times [2021-11-25 17:51:08,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063628818] [2021-11-25 17:51:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:08,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:08,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:08,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063628818] [2021-11-25 17:51:08,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063628818] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:51:08,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620803884] [2021-11-25 17:51:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:08,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:08,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:08,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:08,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:51:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:08,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 17:51:08,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:08,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-11-25 17:51:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:09,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:09,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620803884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:09,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:51:09,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2021-11-25 17:51:09,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392719495] [2021-11-25 17:51:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:09,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 17:51:09,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 17:51:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-25 17:51:09,016 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:09,143 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-11-25 17:51:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:51:09,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 17:51:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:09,146 INFO L225 Difference]: With dead ends: 46 [2021-11-25 17:51:09,146 INFO L226 Difference]: Without dead ends: 22 [2021-11-25 17:51:09,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-25 17:51:09,152 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:09,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 53 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:51:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-25 17:51:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-11-25 17:51:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:09,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-11-25 17:51:09,163 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 15 [2021-11-25 17:51:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:09,163 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-11-25 17:51:09,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-25 17:51:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 17:51:09,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:09,165 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:09,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:51:09,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:09,387 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1186046424, now seen corresponding path program 1 times [2021-11-25 17:51:09,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:09,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736362241] [2021-11-25 17:51:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:09,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:09,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:09,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736362241] [2021-11-25 17:51:09,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736362241] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:51:09,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079987094] [2021-11-25 17:51:09,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:09,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:09,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:09,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:09,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:51:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:09,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 17:51:09,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:09,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-11-25 17:51:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:09,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:51:10,159 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 17:51:10,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 42 [2021-11-25 17:51:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:10,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079987094] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:51:10,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1853677539] [2021-11-25 17:51:10,273 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-25 17:51:10,274 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:51:10,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:51:10,283 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:51:10,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:51:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:51:10,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:51:10,378 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-25 17:51:10,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2021-11-25 17:51:10,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:51:10,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:51:10,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2021-11-25 17:51:10,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:51:10,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 17:51:10,938 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 17:51:12,723 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '468#(and (= |ULTIMATE.start_parse_expression_list_~#str2~0#1.base| |ULTIMATE.start_r_strncpy_#in~dest#1.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) |ULTIMATE.start_parse_expression_list_~str#1.offset|) 9)) (= |ULTIMATE.start_r_strncpy_~src#1.offset| |ULTIMATE.start_r_strncpy_#in~src#1.offset|) (<= |ULTIMATE.start_parse_expression_list_~str#1.offset| 0) (= (+ |ULTIMATE.start_r_strncpy_#in~n#1| |ULTIMATE.start_parse_expression_list_~start~0#1|) (+ |ULTIMATE.start_parse_expression_list_~j~0#1| 1)) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0#1.base|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (< |ULTIMATE.start_parse_expression_list_~j~0#1| (+ |ULTIMATE.start_parse_expression_list_~start~0#1| 1)) 1 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) |ULTIMATE.start_parse_expression_list_~str#1.offset|) 34)) (= |ULTIMATE.start_parse_expression_list_~start~0#1| 0)) (and (= |ULTIMATE.start_parse_expression_list_~start~0#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) |ULTIMATE.start_parse_expression_list_~str#1.offset|) 34))) (not (= 32 (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) (+ (- 1) |ULTIMATE.start_parse_expression_list_~i~0#1| |ULTIMATE.start_parse_expression_list_~str#1.offset|)))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_parse_expression_list_~str#1.base| |ULTIMATE.start_r_strncpy_#in~src#1.base|) (<= 0 |ULTIMATE.start_parse_expression_list_~str#1.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str#1.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str#1.offset|) (not (= 32 (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) |ULTIMATE.start_parse_expression_list_~str#1.offset|))) (= (+ |ULTIMATE.start_parse_expression_list_~start~0#1| |ULTIMATE.start_parse_expression_list_~str#1.offset|) |ULTIMATE.start_r_strncpy_#in~src#1.offset|) (= |ULTIMATE.start_r_strncpy_~n#1| |ULTIMATE.start_r_strncpy_#in~n#1|) (or (and (= |ULTIMATE.start_parse_expression_list_~i~0#1| (+ |ULTIMATE.start_parse_expression_list_~j~0#1| 1)) (not (= (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) (+ (- 1) |ULTIMATE.start_parse_expression_list_~i~0#1| |ULTIMATE.start_parse_expression_list_~str#1.offset|)) 34))) (and (= (+ 2 |ULTIMATE.start_parse_expression_list_~j~0#1|) |ULTIMATE.start_parse_expression_list_~i~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) (+ (- 1) |ULTIMATE.start_parse_expression_list_~i~0#1| |ULTIMATE.start_parse_expression_list_~str#1.offset|)) 34))) (= |ULTIMATE.start_r_strncpy_~dest#1.offset| |ULTIMATE.start_r_strncpy_#in~dest#1.offset|) (= |ULTIMATE.start_parse_expression_list_~#str2~0#1.offset| |ULTIMATE.start_r_strncpy_#in~dest#1.offset|) (= |ULTIMATE.start_r_strncpy_~dest#1.base| |ULTIMATE.start_r_strncpy_#in~dest#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~str#1.base|) (= |ULTIMATE.start_parse_expression_list_~#str2~0#1.offset| 0) (not (= 9 (select (select |#memory_int| |ULTIMATE.start_parse_expression_list_~str#1.base|) (+ (- 1) |ULTIMATE.start_parse_expression_list_~i~0#1| |ULTIMATE.start_parse_expression_list_~str#1.offset|)))) |ULTIMATE.start_parse_expression_list_#t~switch5#1| (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_r_strncpy_#in~src#1.base| |ULTIMATE.start_r_strncpy_~src#1.base|) (<= |ULTIMATE.start_parse_expression_list_#in~str#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 17:51:12,724 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 17:51:12,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 17:51:12,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2021-11-25 17:51:12,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477880569] [2021-11-25 17:51:12,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 17:51:12,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 17:51:12,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:12,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 17:51:12,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2021-11-25 17:51:12,726 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:13,600 INFO L93 Difference]: Finished difference Result 147 states and 184 transitions. [2021-11-25 17:51:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 17:51:13,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 17:51:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:13,608 INFO L225 Difference]: With dead ends: 147 [2021-11-25 17:51:13,608 INFO L226 Difference]: Without dead ends: 145 [2021-11-25 17:51:13,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=469, Invalid=2501, Unknown=0, NotChecked=0, Total=2970 [2021-11-25 17:51:13,611 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 215 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:13,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 133 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:51:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-25 17:51:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 35. [2021-11-25 17:51:13,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:13,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-25 17:51:13,626 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 17 [2021-11-25 17:51:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:13,627 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-25 17:51:13,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-25 17:51:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 17:51:13,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:13,628 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:13,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:51:13,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:13,829 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 231681319, now seen corresponding path program 2 times [2021-11-25 17:51:13,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124463238] [2021-11-25 17:51:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:13,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:51:13,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 17:51:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:51:13,938 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 17:51:13,939 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 17:51:13,940 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 17:51:13,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:51:13,945 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-25 17:51:13,948 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 17:51:13,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:51:13 BoogieIcfgContainer [2021-11-25 17:51:13,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 17:51:13,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 17:51:13,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 17:51:13,991 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 17:51:13,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:51:07" (3/4) ... [2021-11-25 17:51:13,993 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 17:51:14,053 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 17:51:14,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 17:51:14,054 INFO L158 Benchmark]: Toolchain (without parser) took 7548.88ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.5MB in the beginning and 59.5MB in the end (delta: -6.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-25 17:51:14,055 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:51:14,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.02ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.3MB in the beginning and 81.2MB in the end (delta: -28.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 17:51:14,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.70ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:51:14,056 INFO L158 Benchmark]: Boogie Preprocessor took 42.86ms. Allocated memory is still 109.1MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 17:51:14,056 INFO L158 Benchmark]: RCFGBuilder took 485.55ms. Allocated memory is still 109.1MB. Free memory was 78.0MB in the beginning and 62.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 17:51:14,060 INFO L158 Benchmark]: TraceAbstraction took 6595.23ms. Allocated memory is still 109.1MB. Free memory was 61.8MB in the beginning and 62.6MB in the end (delta: -834.3kB). Peak memory consumption was 285.6kB. Max. memory is 16.1GB. [2021-11-25 17:51:14,061 INFO L158 Benchmark]: Witness Printer took 63.24ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 59.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 17:51:14,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.02ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.3MB in the beginning and 81.2MB in the end (delta: -28.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.70ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.86ms. Allocated memory is still 109.1MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.55ms. Allocated memory is still 109.1MB. Free memory was 78.0MB in the beginning and 62.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6595.23ms. Allocated memory is still 109.1MB. Free memory was 61.8MB in the beginning and 62.6MB in the end (delta: -834.3kB). Peak memory consumption was 285.6kB. Max. memory is 16.1GB. * Witness Printer took 63.24ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 59.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L85] char A [2 + 2 + 4 +1]; [L86] A[2 + 2 + 4] = 0 [L87] CALL parse_expression_list (A) [L59] int start=0, i=-1, j=-1; [L60] char str2[2]; VAL [i=-1, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}] [L61] COND FALSE !(!str) VAL [i=-1, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}] [L63] i++ [L64] str[i] [L65] case 0: VAL [i=0, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=50] [L80] EXPR str[i] VAL [i=0, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=50] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: VAL [i=1, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=51] [L80] EXPR str[i] VAL [i=1, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=51] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: VAL [i=2, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=0] [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') VAL [(str[start] == ' ') || (str[start] == '\t')=0, i=2, j=-1, start=0, str={3:0}, str={3:0}, str2={4:0}, str[i]=0, str[start]=50, str[start]=50] [L66] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L67] EXPR str[start] [L67] COND FALSE !(str[start] == '"') [L68] j = i-1 VAL [i=2, j=1, start=0, start++=49, str={3:0}, str={3:0}, str2={4:0}, str[i]=0] [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) VAL [(0 < j) && ((str[j] == ' ') || (str[j] == '\t'))=0, (str[j] == ' ') || (str[j] == '\t')=0, i=2, j=1, start=0, start++=49, str={3:0}, str={3:0}, str2={4:0}, str[i]=0, str[j]=51, str[j]=51] [L69] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L70] (0 < j) && (str[j] == '"') [L70] EXPR str[j] [L70] (0 < j) && (str[j] == '"') [L70] COND FALSE !((0 < j) && (str[j] == '"')) [L71] COND TRUE start<=j [L72] CALL r_strncpy(str2, str+start, j-start+1) [L41] return strncpy(dest,src,n); [L72] RET r_strncpy(str2, str+start, j-start+1) [L73] CALL __VERIFIER_assert(j - start + 1 < 2) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L15] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 274 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 153 mSolverCounterUnsat, 61 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 127 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 811 SizeOfPredicates, 21 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-25 17:51:14,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2823bfd1-37ab-4e81-860d-5b509f88a96f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE