./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/mea8000.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/mea8000.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8 --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 688cd48525df4512c06ddb0666ca8f1253a00b0c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/mea8000.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8 --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 688cd48525df4512c06ddb0666ca8f1253a00b0c ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:44:04,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:04,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:04,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:04,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:04,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:04,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:04,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:04,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:04,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:04,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:04,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:04,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:04,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:04,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:04,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:04,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:04,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:04,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:04,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:04,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:04,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:04,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:04,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:04,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:04,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:04,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:04,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:04,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:04,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:04,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:04,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:04,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:04,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:04,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:04,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:04,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:04,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:04,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:04,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:04,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:04,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:04,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:04,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:04,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:04,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:04,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:04,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:04,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:04,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:04,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:04,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:04,354 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:04,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:04,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:04,355 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:04,355 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:04,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:04,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:04,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:04,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:04,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:04,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:04,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:04,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:04,357 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:04,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:04,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:04,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:04,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:04,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:04,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:04,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:04,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:04,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:04,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:04,359 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:04,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:04,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:04,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:04,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:04,360 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688cd48525df4512c06ddb0666ca8f1253a00b0c [2021-10-13 06:44:04,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:04,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:04,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:04,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:04,649 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:04,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-benchs/mea8000.c [2021-10-13 06:44:04,741 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/a21925a3b/99b33dc4a42d4dbeab0b46f2e128d208/FLAGce429901f [2021-10-13 06:44:05,250 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:05,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c [2021-10-13 06:44:05,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/a21925a3b/99b33dc4a42d4dbeab0b46f2e128d208/FLAGce429901f [2021-10-13 06:44:05,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/a21925a3b/99b33dc4a42d4dbeab0b46f2e128d208 [2021-10-13 06:44:05,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:05,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:05,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:05,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:05,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:05,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:05" (1/1) ... [2021-10-13 06:44:05,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ee91b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:05, skipping insertion in model container [2021-10-13 06:44:05,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:05" (1/1) ... [2021-10-13 06:44:05,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:05,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:05,816 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c[649,662] [2021-10-13 06:44:05,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:05,930 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:05,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c[649,662] [2021-10-13 06:44:06,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:06,036 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:06,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06 WrapperNode [2021-10-13 06:44:06,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:06,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:06,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:06,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:06,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:06,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:06,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:06,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:06,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:06,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:06,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:06,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:06,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (1/1) ... [2021-10-13 06:44:06,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:06,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:06,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:06,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 06:44:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 06:44:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 06:44:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 06:44:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_char [2021-10-13 06:44:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:44:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:08,014 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:08,014 INFO L299 CfgBuilder]: Removed 121 assume(true) statements. [2021-10-13 06:44:08,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:08 BoogieIcfgContainer [2021-10-13 06:44:08,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:08,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:08,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:08,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:08,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:05" (1/3) ... [2021-10-13 06:44:08,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448a20ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:08, skipping insertion in model container [2021-10-13 06:44:08,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:06" (2/3) ... [2021-10-13 06:44:08,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448a20ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:08, skipping insertion in model container [2021-10-13 06:44:08,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:08" (3/3) ... [2021-10-13 06:44:08,026 INFO L111 eAbstractionObserver]: Analyzing ICFG mea8000.c [2021-10-13 06:44:08,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:08,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-13 06:44:08,082 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:08,088 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:44:08,088 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-13 06:44:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 60 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 06:44:08,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:08,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:08,112 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:44:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:08,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1840231915, now seen corresponding path program 1 times [2021-10-13 06:44:08,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:08,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031149761] [2021-10-13 06:44:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:08,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:08,381 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:08,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031149761] [2021-10-13 06:44:08,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031149761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:08,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:08,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:44:08,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912111220] [2021-10-13 06:44:08,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:44:08,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:44:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:44:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:08,405 INFO L87 Difference]: Start difference. First operand has 61 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 60 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:08,437 INFO L93 Difference]: Finished difference Result 120 states and 185 transitions. [2021-10-13 06:44:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:08,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 06:44:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:08,448 INFO L225 Difference]: With dead ends: 120 [2021-10-13 06:44:08,449 INFO L226 Difference]: Without dead ends: 61 [2021-10-13 06:44:08,452 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-13 06:44:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-13 06:44:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 60 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2021-10-13 06:44:08,523 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 85 transitions. Word has length 11 [2021-10-13 06:44:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:08,524 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 85 transitions. [2021-10-13 06:44:08,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2021-10-13 06:44:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 06:44:08,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:08,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:08,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:44:08,527 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:44:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:08,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1481253990, now seen corresponding path program 1 times [2021-10-13 06:44:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:08,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752422862] [2021-10-13 06:44:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:08,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:08,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:08,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752422862] [2021-10-13 06:44:08,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752422862] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:44:08,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195462039] [2021-10-13 06:44:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:08,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:44:08,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:08,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:44:08,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:44:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:08,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:08,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:08,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 06:44:08,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 06:44:08,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195462039] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:08,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:44:08,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2021-10-13 06:44:08,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824789743] [2021-10-13 06:44:08,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:08,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:44:08,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:08,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:44:08,975 INFO L87 Difference]: Start difference. First operand 61 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:09,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:09,015 INFO L93 Difference]: Finished difference Result 120 states and 168 transitions. [2021-10-13 06:44:09,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:44:09,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 06:44:09,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:09,018 INFO L225 Difference]: With dead ends: 120 [2021-10-13 06:44:09,018 INFO L226 Difference]: Without dead ends: 63 [2021-10-13 06:44:09,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:44:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-13 06:44:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-13 06:44:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 55 states have (on average 1.5818181818181818) internal successors, (87), 62 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2021-10-13 06:44:09,027 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 12 [2021-10-13 06:44:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:09,027 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2021-10-13 06:44:09,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2021-10-13 06:44:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 06:44:09,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:09,029 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:09,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:44:09,254 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:44:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:09,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1955631066, now seen corresponding path program 1 times [2021-10-13 06:44:09,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:09,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693741442] [2021-10-13 06:44:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:09,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 06:44:09,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:09,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693741442] [2021-10-13 06:44:09,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693741442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:44:09,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614318774] [2021-10-13 06:44:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:09,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:44:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:09,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:44:09,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 06:44:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:09,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:44:09,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 06:44:09,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 06:44:09,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614318774] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:44:09,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2055826001] [2021-10-13 06:44:09,708 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-10-13 06:44:09,708 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:44:09,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:44:09,725 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:44:09,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:44:09,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:09,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:44:09,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:09,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-13 06:44:09,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:44:09,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:09,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-13 06:44:09,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:44:09,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:09,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-13 06:44:09,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:44:09,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:09,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 384 [2021-10-13 06:44:10,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1812 [2021-10-13 06:44:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:10,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:14,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:14,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:14,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:15,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:15,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:15,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:17,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:19,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:20,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:20,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:20,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:20,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:21,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:23,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:23,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:24,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:25,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:25,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:44:26,060 INFO L244 Elim1Store]: Index analysis took 9094 ms [2021-10-13 06:44:29,864 INFO L354 Elim1Store]: treesize reduction 1202, result has 2.1 percent of original size [2021-10-13 06:44:29,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 55 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 47 case distinctions, treesize of input 259 treesize of output 258 [2021-10-13 06:44:29,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:29,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-10-13 06:44:29,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:29,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-10-13 06:44:29,901 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:44:29,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:44:30,195 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:30,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:30,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1641 [2021-10-13 06:44:30,422 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:44:30,423 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:1806, output treesize:1641 [2021-10-13 06:44:30,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:30,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:44:30,642 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_19| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 06:44:30,646 INFO L168 Benchmark]: Toolchain (without parser) took 25080.46 ms. Allocated memory was 94.4 MB in the beginning and 172.0 MB in the end (delta: 77.6 MB). Free memory was 57.3 MB in the beginning and 112.8 MB in the end (delta: -55.5 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,647 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 74.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:30,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.09 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 57.1 MB in the beginning and 101.2 MB in the end (delta: -44.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.62 ms. Allocated memory is still 136.3 MB. Free memory was 101.2 MB in the beginning and 95.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,652 INFO L168 Benchmark]: Boogie Preprocessor took 83.45 ms. Allocated memory is still 136.3 MB. Free memory was 95.6 MB in the beginning and 91.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,655 INFO L168 Benchmark]: RCFGBuilder took 1793.04 ms. Allocated memory is still 136.3 MB. Free memory was 91.4 MB in the beginning and 72.8 MB in the end (delta: 18.6 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,656 INFO L168 Benchmark]: TraceAbstraction took 22626.83 ms. Allocated memory was 136.3 MB in the beginning and 172.0 MB in the end (delta: 35.7 MB). Free memory was 72.8 MB in the beginning and 112.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:30,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 74.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.09 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 57.1 MB in the beginning and 101.2 MB in the end (delta: -44.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.62 ms. Allocated memory is still 136.3 MB. Free memory was 101.2 MB in the beginning and 95.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.45 ms. Allocated memory is still 136.3 MB. Free memory was 95.6 MB in the beginning and 91.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1793.04 ms. Allocated memory is still 136.3 MB. Free memory was 91.4 MB in the beginning and 72.8 MB in the end (delta: 18.6 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22626.83 ms. Allocated memory was 136.3 MB in the beginning and 172.0 MB in the end (delta: 35.7 MB). Free memory was 72.8 MB in the beginning and 112.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_19| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_19|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:44:30,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:44:33,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:33,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:33,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:33,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:33,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:33,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:33,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:33,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:33,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:33,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:33,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:33,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:33,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:33,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:33,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:33,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:33,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:33,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:33,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:33,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:33,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:33,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:33,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:33,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:33,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:33,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:33,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:33,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:33,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:33,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:33,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:33,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:33,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:33,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:33,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:33,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:33,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:33,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:33,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:33,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:33,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:44:33,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:33,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:33,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:33,146 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:33,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:33,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:33,147 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:33,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:33,148 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:33,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:33,149 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:33,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:33,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:33,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:33,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:33,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:33,151 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:33,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:44:33,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:44:33,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:33,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:33,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:33,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:33,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:33,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:44:33,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:33,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:33,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:33,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:33,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:33,155 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:44:33,155 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:44:33,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:33,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:33,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:33,156 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688cd48525df4512c06ddb0666ca8f1253a00b0c [2021-10-13 06:44:33,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:33,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:33,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:33,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:33,629 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:33,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-benchs/mea8000.c [2021-10-13 06:44:33,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/ffb2c994d/d6cc93992f7c465b8709001dbeb44597/FLAG20cebc7d2 [2021-10-13 06:44:34,271 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:34,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c [2021-10-13 06:44:34,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/ffb2c994d/d6cc93992f7c465b8709001dbeb44597/FLAG20cebc7d2 [2021-10-13 06:44:34,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/data/ffb2c994d/d6cc93992f7c465b8709001dbeb44597 [2021-10-13 06:44:34,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:34,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:34,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:34,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:34,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:34,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:34" (1/1) ... [2021-10-13 06:44:34,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33331e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:34, skipping insertion in model container [2021-10-13 06:44:34,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:34" (1/1) ... [2021-10-13 06:44:34,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:34,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:34,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c[649,662] [2021-10-13 06:44:34,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:35,025 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:35,037 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/sv-benchmarks/c/float-benchs/mea8000.c[649,662] [2021-10-13 06:44:35,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:35,168 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:35,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35 WrapperNode [2021-10-13 06:44:35,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:35,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:35,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:35,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:35,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:35,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:35,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:35,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:35,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:35,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:35,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:35,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:35,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (1/1) ... [2021-10-13 06:44:35,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:35,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:35,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:35,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 06:44:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 06:44:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-13 06:44:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:44:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 06:44:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 06:44:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_char [2021-10-13 06:44:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-13 06:44:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 06:45:14,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:45:14,158 INFO L299 CfgBuilder]: Removed 121 assume(true) statements. [2021-10-13 06:45:14,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:14 BoogieIcfgContainer [2021-10-13 06:45:14,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:45:14,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:45:14,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:45:14,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:45:14,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:34" (1/3) ... [2021-10-13 06:45:14,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48681b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:14, skipping insertion in model container [2021-10-13 06:45:14,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:35" (2/3) ... [2021-10-13 06:45:14,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48681b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:14, skipping insertion in model container [2021-10-13 06:45:14,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:14" (3/3) ... [2021-10-13 06:45:14,171 INFO L111 eAbstractionObserver]: Analyzing ICFG mea8000.c [2021-10-13 06:45:14,177 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:45:14,177 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-13 06:45:14,242 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:45:14,248 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:45:14,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-13 06:45:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 114 states have (on average 1.5701754385964912) internal successors, (179), 122 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:14,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 06:45:14,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:14,276 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:45:14,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:45:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:14,283 INFO L82 PathProgramCache]: Analyzing trace with hash 380360779, now seen corresponding path program 1 times [2021-10-13 06:45:14,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:45:14,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254875601] [2021-10-13 06:45:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:14,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:45:14,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:45:14,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:45:14,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:45:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:14,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:45:14,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:45:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:14,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:45:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:15,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:45:15,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254875601] [2021-10-13 06:45:15,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254875601] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:45:15,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:45:15,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:45:15,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056135744] [2021-10-13 06:45:15,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:45:15,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:45:15,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:45:15,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:45:15,230 INFO L87 Difference]: Start difference. First operand has 123 states, 114 states have (on average 1.5701754385964912) internal successors, (179), 122 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:15,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:45:15,266 INFO L93 Difference]: Finished difference Result 240 states and 353 transitions. [2021-10-13 06:45:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:45:15,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 06:45:15,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:45:15,279 INFO L225 Difference]: With dead ends: 240 [2021-10-13 06:45:15,280 INFO L226 Difference]: Without dead ends: 119 [2021-10-13 06:45:15,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:45:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-13 06:45:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-13 06:45:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 118 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 152 transitions. [2021-10-13 06:45:15,327 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 152 transitions. Word has length 13 [2021-10-13 06:45:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:45:15,327 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 152 transitions. [2021-10-13 06:45:15,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 152 transitions. [2021-10-13 06:45:15,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 06:45:15,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:15,330 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:45:15,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:45:15,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:45:15,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:45:15,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:15,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1302106954, now seen corresponding path program 1 times [2021-10-13 06:45:15,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:45:15,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842575044] [2021-10-13 06:45:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:15,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:45:15,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:45:15,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:45:15,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:45:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:16,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:45:16,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:45:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:16,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:45:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:16,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:45:16,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842575044] [2021-10-13 06:45:16,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842575044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:45:16,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:45:16,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:45:16,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977920300] [2021-10-13 06:45:16,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:45:16,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:45:16,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:45:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:45:16,651 INFO L87 Difference]: Start difference. First operand 119 states and 152 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:45:26,860 INFO L93 Difference]: Finished difference Result 225 states and 289 transitions. [2021-10-13 06:45:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:45:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 06:45:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:45:27,016 INFO L225 Difference]: With dead ends: 225 [2021-10-13 06:45:27,016 INFO L226 Difference]: Without dead ends: 123 [2021-10-13 06:45:27,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 175.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:45:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-13 06:45:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2021-10-13 06:45:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 119 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2021-10-13 06:45:27,032 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 13 [2021-10-13 06:45:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:45:27,032 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2021-10-13 06:45:27,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2021-10-13 06:45:27,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 06:45:27,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:27,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:45:27,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 06:45:27,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:45:27,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-13 06:45:27,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:27,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1994338668, now seen corresponding path program 1 times [2021-10-13 06:45:27,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:45:27,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400032520] [2021-10-13 06:45:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:27,242 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:45:27,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:45:27,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:45:27,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:45:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:28,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:45:28,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:45:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:30,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:45:36,928 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) c_ULTIMATE.start_init_tables_~f~0) (_ +zero 11 53)) is different from false [2021-10-13 06:45:38,962 WARN L860 $PredicateComparison]: unable to prove that (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) c_ULTIMATE.start_init_tables_~f~0) (_ +zero 11 53)) is different from true [2021-10-13 06:45:52,626 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_init_tables_~i~1) ((_ to_fp 11 53) c_currentRoundingMode (_ bv8096 32)))) (_ +zero 11 53)) is different from false [2021-10-13 06:45:54,780 WARN L860 $PredicateComparison]: unable to prove that (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_init_tables_~i~1) ((_ to_fp 11 53) c_currentRoundingMode (_ bv8096 32)))) (_ +zero 11 53)) is different from true [2021-10-13 06:45:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:54,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:45:54,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400032520] [2021-10-13 06:45:54,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400032520] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:45:54,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:45:54,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 06:45:54,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554882049] [2021-10-13 06:45:54,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 06:45:54,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:45:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 06:45:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=37, Unknown=4, NotChecked=26, Total=90 [2021-10-13 06:45:54,987 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:57,437 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_init_tables_~i~1 (_ bv0 32)) (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_init_tables_~i~1) ((_ to_fp 11 53) c_currentRoundingMode (_ bv8096 32)))) (_ +zero 11 53)) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0)) c_~M_PI~0) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-13 06:45:59,487 WARN L860 $PredicateComparison]: unable to prove that (and (fp.leq (fp.mul c_currentRoundingMode (fp.neg c_~M_PI~0) c_ULTIMATE.start_init_tables_~f~0) (_ +zero 11 53)) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0)) c_~M_PI~0) (= (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv8096 32))) c_ULTIMATE.start_init_tables_~f~0) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-13 06:46:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 06:46:17,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:46:17,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:46:17,809 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.annotate(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:204) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:864) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:778) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 06:46:17,814 INFO L168 Benchmark]: Toolchain (without parser) took 103247.21 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 52.9 MB in the beginning and 66.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:46:17,814 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:46:17,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.52 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 43.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:46:17,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.31 ms. Allocated memory is still 71.3 MB. Free memory was 43.1 MB in the beginning and 37.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:46:17,816 INFO L168 Benchmark]: Boogie Preprocessor took 151.56 ms. Allocated memory is still 71.3 MB. Free memory was 37.6 MB in the beginning and 32.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:46:17,816 INFO L168 Benchmark]: RCFGBuilder took 38712.21 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 32.9 MB in the beginning and 43.5 MB in the end (delta: -10.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:46:17,817 INFO L168 Benchmark]: TraceAbstraction took 63647.83 ms. Allocated memory is still 94.4 MB. Free memory was 43.0 MB in the beginning and 66.8 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:46:17,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 601.52 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 43.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.31 ms. Allocated memory is still 71.3 MB. Free memory was 43.1 MB in the beginning and 37.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.56 ms. Allocated memory is still 71.3 MB. Free memory was 37.6 MB in the beginning and 32.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 38712.21 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 32.9 MB in the beginning and 43.5 MB in the end (delta: -10.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 63647.83 ms. Allocated memory is still 94.4 MB. Free memory was 43.0 MB in the beginning and 66.8 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:46:18,041 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 06:46:18,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a5c67a0-4096-42ae-ae11-14819ee77b62/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...