./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan --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 5826109f3da002ef221ffbad3510db88b48ab8f7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:05:29,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:05:29,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:05:29,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:05:29,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:05:29,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:05:29,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:05:29,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:05:29,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:05:29,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:05:29,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:05:29,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:05:29,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:05:29,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:05:29,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:05:29,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:05:29,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:05:29,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:05:29,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:05:29,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:05:29,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:05:29,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:05:29,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:05:29,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:05:29,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:05:29,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:05:29,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:05:29,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:05:29,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:05:29,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:05:29,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:05:29,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:05:29,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:05:29,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:05:29,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:05:29,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:05:29,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:05:29,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:05:29,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:05:29,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:05:29,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:05:29,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:05:29,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:05:29,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:05:29,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:05:29,260 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:05:29,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:05:29,261 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:05:29,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:05:29,261 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:05:29,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:05:29,262 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:05:29,265 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:05:29,265 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:05:29,266 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:05:29,266 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:05:29,266 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:05:29,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:05:29,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:05:29,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:05:29,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:05:29,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:05:29,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:05:29,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:05:29,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:05:29,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:05:29,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:05:29,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:05:29,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:05:29,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:05:29,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:05:29,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:05:29,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:05:29,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:05:29,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:05:29,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:05:29,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:05:29,277 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:05:29,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:05:29,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:05:29,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:05:29,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:05:29,279 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-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5826109f3da002ef221ffbad3510db88b48ab8f7 [2020-11-30 02:05:29,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:05:29,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:05:29,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:05:29,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:05:29,681 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:05:29,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-30 02:05:29,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/data/326b82431/ff3a9d0552b44dff9aadb74bb67dd8c7/FLAG9edff6f21 [2020-11-30 02:05:30,356 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:05:30,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-30 02:05:30,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/data/326b82431/ff3a9d0552b44dff9aadb74bb67dd8c7/FLAG9edff6f21 [2020-11-30 02:05:30,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/data/326b82431/ff3a9d0552b44dff9aadb74bb67dd8c7 [2020-11-30 02:05:30,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:05:30,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:05:30,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:05:30,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:05:30,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:05:30,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:05:30" (1/1) ... [2020-11-30 02:05:30,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6909957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:30, skipping insertion in model container [2020-11-30 02:05:30,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:05:30" (1/1) ... [2020-11-30 02:05:30,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:05:30,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:05:31,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:05:31,059 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:05:31,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:05:31,142 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:05:31,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31 WrapperNode [2020-11-30 02:05:31,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:05:31,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:05:31,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:05:31,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:05:31,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:05:31,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:05:31,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:05:31,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:05:31,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:05:31,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:05:31,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:05:31,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:05:31,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:05:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:05:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:05:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:05:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:05:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-30 02:05:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:05:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:05:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:05:32,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:05:32,249 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 02:05:32,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32 BoogieIcfgContainer [2020-11-30 02:05:32,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:05:32,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:05:32,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:05:32,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:05:32,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:05:30" (1/3) ... [2020-11-30 02:05:32,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abfdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:05:32, skipping insertion in model container [2020-11-30 02:05:32,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31" (2/3) ... [2020-11-30 02:05:32,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abfdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:05:32, skipping insertion in model container [2020-11-30 02:05:32,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32" (3/3) ... [2020-11-30 02:05:32,266 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-30 02:05:32,282 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:05:32,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:05:32,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:05:32,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:05:32,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:05:32,350 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:05:32,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:05:32,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:05:32,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:05:32,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:05:32,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:05:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-30 02:05:32,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:05:32,376 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:32,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:32,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:32,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1491113676, now seen corresponding path program 1 times [2020-11-30 02:05:32,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:32,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332297287] [2020-11-30 02:05:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:32,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332297287] [2020-11-30 02:05:32,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:05:32,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:05:32,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784957424] [2020-11-30 02:05:32,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:05:32,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:05:32,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:05:32,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:05:32,701 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2020-11-30 02:05:32,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:32,745 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2020-11-30 02:05:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:05:32,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-30 02:05:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:32,770 INFO L225 Difference]: With dead ends: 46 [2020-11-30 02:05:32,770 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 02:05:32,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:05:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 02:05:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 02:05:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 02:05:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-11-30 02:05:32,831 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-11-30 02:05:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:32,832 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-11-30 02:05:32,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:05:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-11-30 02:05:32,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:05:32,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:32,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:32,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:05:32,835 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:32,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:32,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1804189808, now seen corresponding path program 1 times [2020-11-30 02:05:32,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:32,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947139117] [2020-11-30 02:05:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:32,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947139117] [2020-11-30 02:05:32,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393123769] [2020-11-30 02:05:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:33,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:05:33,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:33,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:33,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048563460] [2020-11-30 02:05:33,287 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2020-11-30 02:05:33,287 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:05:33,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:05:33,303 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:05:33,304 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:05:34,566 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:05:34,904 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:35,162 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-30 02:05:35,507 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-11-30 02:05:35,910 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-11-30 02:05:36,379 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2020-11-30 02:05:36,926 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 66 [2020-11-30 02:05:37,377 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-11-30 02:05:37,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:05:37,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [3, 3, 3] total 14 [2020-11-30 02:05:37,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713582694] [2020-11-30 02:05:37,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:05:37,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:05:37,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:05:37,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-11-30 02:05:37,383 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 10 states. [2020-11-30 02:05:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:37,690 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-11-30 02:05:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:05:37,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-30 02:05:37,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:37,692 INFO L225 Difference]: With dead ends: 48 [2020-11-30 02:05:37,692 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 02:05:37,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-11-30 02:05:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 02:05:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-11-30 02:05:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 02:05:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-11-30 02:05:37,699 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-11-30 02:05:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:37,700 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-11-30 02:05:37,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:05:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-30 02:05:37,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 02:05:37,701 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:37,701 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:37,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 02:05:37,927 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:37,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2056090777, now seen corresponding path program 1 times [2020-11-30 02:05:37,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:37,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799849483] [2020-11-30 02:05:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:05:37,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799849483] [2020-11-30 02:05:37,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938799995] [2020-11-30 02:05:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:38,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:05:38,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:05:38,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:05:38,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1210894483] [2020-11-30 02:05:38,142 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-30 02:05:38,142 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:05:38,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:05:38,143 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:05:38,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:05:39,079 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:05:39,464 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:40,131 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-30 02:05:40,355 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-30 02:05:40,591 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-30 02:05:40,845 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-30 02:05:41,111 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-30 02:05:41,486 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-11-30 02:05:41,784 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-11-30 02:05:42,078 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-11-30 02:05:42,486 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-11-30 02:05:42,913 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-11-30 02:05:43,285 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-11-30 02:05:43,778 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2020-11-30 02:05:44,648 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-11-30 02:05:44,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:05:44,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [3, 3, 3] total 21 [2020-11-30 02:05:44,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174076217] [2020-11-30 02:05:44,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 02:05:44,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:05:44,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 02:05:44,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:05:44,652 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 17 states. [2020-11-30 02:05:44,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:44,969 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-30 02:05:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-30 02:05:44,970 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-11-30 02:05:44,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:44,971 INFO L225 Difference]: With dead ends: 40 [2020-11-30 02:05:44,971 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 02:05:44,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:05:44,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 02:05:44,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-11-30 02:05:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 02:05:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-11-30 02:05:44,993 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 21 [2020-11-30 02:05:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:44,993 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-11-30 02:05:44,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 02:05:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-11-30 02:05:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 02:05:44,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:44,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:45,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-30 02:05:45,213 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:45,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1845042433, now seen corresponding path program 1 times [2020-11-30 02:05:45,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:45,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147123400] [2020-11-30 02:05:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:45,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147123400] [2020-11-30 02:05:45,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913753702] [2020-11-30 02:05:45,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:45,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:05:45,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:45,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:45,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1824090741] [2020-11-30 02:05:45,442 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-30 02:05:45,442 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:05:45,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:05:45,443 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:05:45,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:05:46,490 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:05:46,843 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:47,550 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-30 02:05:47,740 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-30 02:05:47,971 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-30 02:05:48,224 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-30 02:05:48,480 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-30 02:05:48,891 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-11-30 02:05:49,154 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-11-30 02:05:49,330 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-11-30 02:05:49,534 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-11-30 02:05:49,745 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-30 02:05:50,127 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-11-30 02:05:50,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:05:50,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [3, 3, 3] total 19 [2020-11-30 02:05:50,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805229719] [2020-11-30 02:05:50,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 02:05:50,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:05:50,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 02:05:50,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-30 02:05:50,130 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 15 states. [2020-11-30 02:05:50,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:50,350 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-11-30 02:05:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 02:05:50,351 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-11-30 02:05:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:50,353 INFO L225 Difference]: With dead ends: 49 [2020-11-30 02:05:50,353 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 02:05:50,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-30 02:05:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 02:05:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-11-30 02:05:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 02:05:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-11-30 02:05:50,364 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 23 [2020-11-30 02:05:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:50,364 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-11-30 02:05:50,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 02:05:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-11-30 02:05:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 02:05:50,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:50,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:50,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:50,587 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:50,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:50,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1694810672, now seen corresponding path program 1 times [2020-11-30 02:05:50,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:50,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796319162] [2020-11-30 02:05:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:50,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796319162] [2020-11-30 02:05:50,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759525318] [2020-11-30 02:05:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:50,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:05:50,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:50,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 02:05:50,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [432133082] [2020-11-30 02:05:50,812 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-30 02:05:50,813 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:05:50,813 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:05:50,813 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:05:50,813 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:05:51,568 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:05:51,881 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:52,418 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-30 02:05:52,625 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-30 02:05:52,841 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-30 02:05:53,052 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-30 02:05:53,381 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:53,547 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-30 02:05:53,779 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-11-30 02:05:54,175 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-11-30 02:05:54,429 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-11-30 02:05:54,810 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-11-30 02:05:55,290 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-11-30 02:05:56,224 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2020-11-30 02:05:56,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:05:56,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [3, 3, 3] total 20 [2020-11-30 02:05:56,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956570592] [2020-11-30 02:05:56,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 02:05:56,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:05:56,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 02:05:56,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-11-30 02:05:56,228 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 16 states. [2020-11-30 02:05:56,526 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-30 02:05:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:56,772 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2020-11-30 02:05:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 02:05:56,772 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2020-11-30 02:05:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:56,773 INFO L225 Difference]: With dead ends: 55 [2020-11-30 02:05:56,773 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 02:05:56,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:05:56,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 02:05:56,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2020-11-30 02:05:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 02:05:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-11-30 02:05:56,784 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 23 [2020-11-30 02:05:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:56,784 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-11-30 02:05:56,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 02:05:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-11-30 02:05:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 02:05:56,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:56,786 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:57,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:57,007 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:57,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:57,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1311193718, now seen corresponding path program 1 times [2020-11-30 02:05:57,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:57,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749950406] [2020-11-30 02:05:57,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 02:05:57,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749950406] [2020-11-30 02:05:57,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613929315] [2020-11-30 02:05:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:05:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:57,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:05:57,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 02:05:57,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 02:05:57,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2099702908] [2020-11-30 02:05:57,241 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-30 02:05:57,241 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:05:57,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:05:57,242 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:05:57,242 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:05:58,205 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:05:58,476 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:05:59,019 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-30 02:05:59,205 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-30 02:05:59,404 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-30 02:05:59,666 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-30 02:06:00,045 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-30 02:06:00,233 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-30 02:06:00,405 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-11-30 02:06:00,640 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-11-30 02:06:00,862 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-11-30 02:06:01,286 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-11-30 02:06:01,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:06:01,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [3, 3, 3] total 18 [2020-11-30 02:06:01,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548739269] [2020-11-30 02:06:01,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 02:06:01,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:06:01,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 02:06:01,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-11-30 02:06:01,289 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 14 states. [2020-11-30 02:06:01,669 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-30 02:06:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:06:01,808 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-11-30 02:06:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 02:06:01,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-11-30 02:06:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:06:01,810 INFO L225 Difference]: With dead ends: 41 [2020-11-30 02:06:01,810 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:06:01,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-30 02:06:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:06:01,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:06:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:06:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:06:01,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-11-30 02:06:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:06:01,812 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:06:01,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 02:06:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:06:01,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:06:02,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:06:02,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:06:02,577 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-11-30 02:06:03,000 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2020-11-30 02:06:03,212 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 56 [2020-11-30 02:06:03,399 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 43 [2020-11-30 02:06:03,559 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-11-30 02:06:03,562 INFO L277 CegarLoopResult]: At program point L85(lines 58 86) the Hoare annotation is: true [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point L70-6(line 70) no Hoare annotation was computed. [2020-11-30 02:06:03,562 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 02:06:03,563 INFO L270 CegarLoopResult]: At program point L70-8(line 70) the Hoare annotation is: (and (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= |#t~string1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-30 02:06:03,563 INFO L274 CegarLoopResult]: For program point L70-9(line 70) no Hoare annotation was computed. [2020-11-30 02:06:03,563 INFO L274 CegarLoopResult]: For program point L71-4(lines 65 83) no Hoare annotation was computed. [2020-11-30 02:06:03,563 INFO L274 CegarLoopResult]: For program point L63-2(lines 63 84) no Hoare annotation was computed. [2020-11-30 02:06:03,563 INFO L270 CegarLoopResult]: At program point L63-4(lines 63 84) the Hoare annotation is: (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (<= 0 |#t~string0.base|)) (.cse3 (= |#NULL.base| 0)) (.cse4 (<= 0 |#t~string1.base|)) (.cse5 (= |ULTIMATE.start_main_~#A~0.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~#A~0.base|)) (.cse7 (<= 8 ULTIMATE.start_main_~i~1)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (= |#t~string0.offset| 0)) (.cse10 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse2 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse2 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse2 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) .cse3 (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) .cse7 .cse8 (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) .cse9 .cse10) (and .cse0 .cse1 (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ |ULTIMATE.start_main_~#A~0.offset| 8)) 0) (= |ULTIMATE.start_parse_expression_list_#in~str.offset| |ULTIMATE.start_main_~#A~0.offset|) .cse3 (= (select |#length| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) 2) (= ULTIMATE.start_parse_expression_list_~str.offset |ULTIMATE.start_parse_expression_list_#in~str.offset|) (= |ULTIMATE.start_parse_expression_list_#in~str.base| |ULTIMATE.start_main_~#A~0.base|) (not (= ULTIMATE.start_parse_expression_list_~str.base 0)) (= ULTIMATE.start_parse_expression_list_~start~0 0) (= ULTIMATE.start_parse_expression_list_~str.base |ULTIMATE.start_parse_expression_list_#in~str.base|) (= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) .cse4 .cse5 (= (+ ULTIMATE.start_parse_expression_list_~i~0 1) 0) .cse6 (< |#StackHeapBarrier| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= (+ ULTIMATE.start_parse_expression_list_~j~0 1) 0) .cse7 (= (select |#valid| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) 1) .cse8 .cse9 .cse10))) [2020-11-30 02:06:03,563 INFO L274 CegarLoopResult]: For program point L63-5(lines 63 84) no Hoare annotation was computed. [2020-11-30 02:06:03,563 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-30 02:06:03,564 INFO L270 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: (let ((.cse1 (< ULTIMATE.start_parse_expression_list_~j~0 (+ ULTIMATE.start_parse_expression_list_~start~0 1)))) (and (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_r_strncpy_~dest.offset |ULTIMATE.start_r_strncpy_#in~dest.offset|) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) .cse1 (<= ULTIMATE.start_parse_expression_list_~start~0 ULTIMATE.start_parse_expression_list_~j~0) (= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| |ULTIMATE.start_r_strncpy_#in~dest.offset|) (= (+ ULTIMATE.start_parse_expression_list_~start~0 |ULTIMATE.start_r_strncpy_#in~n|) (+ ULTIMATE.start_parse_expression_list_~j~0 1)) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (= (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~start~0) |ULTIMATE.start_r_strncpy_#in~src.offset|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (= ULTIMATE.start_parse_expression_list_~str.base |ULTIMATE.start_r_strncpy_#in~src.base|) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (= (ite .cse1 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (<= 0 |#StackHeapBarrier|) (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (= ULTIMATE.start_r_strncpy_~src.offset |ULTIMATE.start_r_strncpy_#in~src.offset|) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 |#t~string1.base|) (= ULTIMATE.start_r_strncpy_~dest.base |ULTIMATE.start_r_strncpy_#in~dest.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (= ULTIMATE.start_r_strncpy_~n |ULTIMATE.start_r_strncpy_#in~n|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (= ULTIMATE.start_r_strncpy_~src.base |ULTIMATE.start_r_strncpy_#in~src.base|) (= |ULTIMATE.start_parse_expression_list_~#str2~0.base| |ULTIMATE.start_r_strncpy_#in~dest.base|) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (= |#t~string0.offset| 0))) [2020-11-30 02:06:03,564 INFO L270 CegarLoopResult]: At program point L73(lines 73 75) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= ULTIMATE.start_parse_expression_list_~start~0 ULTIMATE.start_parse_expression_list_~j~0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-30 02:06:03,564 INFO L274 CegarLoopResult]: For program point L65(lines 65 83) no Hoare annotation was computed. [2020-11-30 02:06:03,564 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 02:06:03,565 INFO L270 CegarLoopResult]: At program point L90-3(lines 90 92) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (= |#NULL.base| 0) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (<= 0 ULTIMATE.start_main_~i~1) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-30 02:06:03,565 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-30 02:06:03,565 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:06:03,565 INFO L274 CegarLoopResult]: For program point L67-3(line 67) no Hoare annotation was computed. [2020-11-30 02:06:03,565 INFO L270 CegarLoopResult]: At program point L67-5(line 67) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-30 02:06:03,565 INFO L274 CegarLoopResult]: For program point L67-6(line 67) no Hoare annotation was computed. [2020-11-30 02:06:03,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:06:03,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:06:03,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,616 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,616 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:06:03 BoogieIcfgContainer [2020-11-30 02:06:03,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:06:03,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:06:03,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:06:03,636 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:06:03,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32" (3/4) ... [2020-11-30 02:06:03,640 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:06:03,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-11-30 02:06:03,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 02:06:03,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 02:06:03,656 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:06:03,689 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((0 <= str && \old(cond) == cond) && dest == dest) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && j < start + 1) && start <= j) && str2 == dest) && start + \old(n) == j + 1) && 0 <= i) && 0 <= A) && str + start == src) && 0 <= start) && str == src) && 8 <= i) && #NULL == 0) && 0 <= str2) && (if j < start + 1 then 1 else 0) == \old(cond)) && 0 <= str2) && 0 <= unknown-#StackHeapBarrier-unknown) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0) && 0 <= "0") && src == src) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && dest == dest) && A == 0) && n == \old(n)) && 0 <= str) && src == src) && str2 == dest) && str <= 0) && "0" == 0 [2020-11-30 02:06:03,719 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a975ce5e-d881-4e45-8a6a-2c5f475b3f80/bin/utaipan/witness.graphml [2020-11-30 02:06:03,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:06:03,721 INFO L168 Benchmark]: Toolchain (without parser) took 33049.74 ms. Allocated memory was 86.0 MB in the beginning and 283.1 MB in the end (delta: 197.1 MB). Free memory was 53.3 MB in the beginning and 245.3 MB in the end (delta: -192.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,722 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:06:03,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.07 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 61.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.13 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 59.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,723 INFO L168 Benchmark]: Boogie Preprocessor took 60.20 ms. Allocated memory is still 86.0 MB. Free memory was 59.0 MB in the beginning and 57.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,724 INFO L168 Benchmark]: RCFGBuilder took 988.81 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 57.6 MB in the beginning and 78.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,724 INFO L168 Benchmark]: TraceAbstraction took 31380.94 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 77.5 MB in the beginning and 250.5 MB in the end (delta: -173.0 MB). Peak memory consumption was 162.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,725 INFO L168 Benchmark]: Witness Printer took 84.33 ms. Allocated memory is still 283.1 MB. Free memory was 250.5 MB in the beginning and 245.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:06:03,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.07 ms. Allocated memory is still 86.0 MB. Free memory was 53.3 MB in the beginning and 61.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.13 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 59.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.20 ms. Allocated memory is still 86.0 MB. Free memory was 59.0 MB in the beginning and 57.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 988.81 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 57.6 MB in the beginning and 78.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31380.94 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 77.5 MB in the beginning and 250.5 MB in the end (delta: -173.0 MB). Peak memory consumption was 162.6 MB. Max. memory is 16.1 GB. * Witness Printer took 84.33 ms. Allocated memory is still 283.1 MB. Free memory was 250.5 MB in the beginning and 245.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant [2020-11-30 02:06:03,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:06:03,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:06:03,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && unknown-#memory_int-unknown[A][A + 8] == 0) && str == A) && #NULL == 0) && unknown-#length-unknown[str2] == 2) && str == str) && str == A) && !(str == 0)) && start == 0) && str == str) && str2 == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && i + 1 == 0) && 0 <= A) && unknown-#StackHeapBarrier-unknown < str2) && j + 1 == 0) && 8 <= i) && \valid[str2] == 1) && #NULL == 0) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 90]: Loop Invariant [2020-11-30 02:06:03,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" <= 0 && 0 <= "0") && 0 <= A) && #NULL == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && #NULL == 0) && 0 <= i) && "0" == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 14]: Loop Invariant [2020-11-30 02:06:03,779 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((((((((((((((((((((((((((((((0 <= str && \old(cond) == cond) && dest == dest) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && j < start + 1) && start <= j) && str2 == dest) && start + \old(n) == j + 1) && 0 <= i) && 0 <= A) && str + start == src) && 0 <= start) && str == src) && 8 <= i) && #NULL == 0) && 0 <= str2) && (if j < start + 1 then 1 else 0) == \old(cond)) && 0 <= str2) && 0 <= unknown-#StackHeapBarrier-unknown) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0) && 0 <= "0") && src == src) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && dest == dest) && A == 0) && n == \old(n)) && 0 <= str) && src == src) && str2 == dest) && str <= 0) && "0" == 0 - InvariantResult [Line: 67]: Loop Invariant [2020-11-30 02:06:03,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 70]: Loop Invariant [2020-11-30 02:06:03,792 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,792 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,792 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((0 <= "0" && 0 <= str) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" <= 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 73]: Loop Invariant [2020-11-30 02:06:03,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:06:03,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,798 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:06:03,798 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,798 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:06:03,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && start <= j) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 237 SDslu, 164 SDs, 0 SdLazy, 553 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=5, 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, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 23 NumberOfFragments, 600 HoareAnnotationTreeSize, 7 FomulaSimplifications, 3414 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 771 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 8043 SizeOfPredicates, 5 NumberOfNonLiveVariables, 630 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 48/63 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: OVERALL_TIME[ms]: 4988, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 81, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 151, TOOLS_POST_TIME[ms]: 2408, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 151, TOOLS_QUANTIFIERELIM_TIME[ms]: 2347, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 229, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 311, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME[ms]: 492, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 192, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME[ms]: 1328, DOMAIN_ISSUBSETEQ_APPLICATIONS: 33, DOMAIN_ISSUBSETEQ_TIME[ms]: 144, DOMAIN_ISBOTTOM_APPLICATIONS: 81, DOMAIN_ISBOTTOM_TIME[ms]: 252, LOOP_SUMMARIZER_APPLICATIONS: 13, LOOP_SUMMARIZER_CACHE_MISSES: 13, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 2651, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2650, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 33, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 10, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 56, DAG_COMPRESSION_PROCESSED_NODES: 1182, DAG_COMPRESSION_RETAINED_NODES: 264, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...