./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s42iff.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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s42iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/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 df76dc7d0ac543fbddd8f2c3a328df8f807c4a47 ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:10:44,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:10:44,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:10:44,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:10:44,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:10:44,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:10:44,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:10:44,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:10:44,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:10:44,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:10:44,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:10:44,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:10:44,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:10:44,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:10:44,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:10:44,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:10:44,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:10:44,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:10:44,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:10:44,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:10:44,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:10:44,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:10:44,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:10:44,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:10:44,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:10:44,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:10:44,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:10:44,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:10:44,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:10:44,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:10:44,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:10:44,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:10:44,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:10:44,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:10:44,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:10:44,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:10:44,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:10:44,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:10:44,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:10:44,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:10:44,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:10:44,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:10:44,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:10:44,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:10:44,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:10:44,713 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:10:44,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:10:44,714 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:10:44,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:10:44,714 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:10:44,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:10:44,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:10:44,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:10:44,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:10:44,716 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:10:44,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:10:44,716 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:10:44,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:10:44,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:10:44,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:10:44,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:10:44,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:10:44,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:10:44,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:10:44,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:10:44,720 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:10:44,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:10:44,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:10:44,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:10:44,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:10:44,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:10:44,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:10:44,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:10:44,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:10:44,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:10:44,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:10:44,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:10:44,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:10:44,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:10:44,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:10:44,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:10:44,724 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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df76dc7d0ac543fbddd8f2c3a328df8f807c4a47 [2021-10-13 07:10:45,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:10:45,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:10:45,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:10:45,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:10:45,061 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:10:45,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/array-fpi/s42iff.c [2021-10-13 07:10:45,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/data/03924fab6/82c8a5700ca64e5b89edb4bb5d28456d/FLAGcfe059e7d [2021-10-13 07:10:45,638 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:10:45,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/sv-benchmarks/c/array-fpi/s42iff.c [2021-10-13 07:10:45,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/data/03924fab6/82c8a5700ca64e5b89edb4bb5d28456d/FLAGcfe059e7d [2021-10-13 07:10:46,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/data/03924fab6/82c8a5700ca64e5b89edb4bb5d28456d [2021-10-13 07:10:46,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:10:46,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:10:46,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:10:46,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:10:46,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:10:46,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321e9257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46, skipping insertion in model container [2021-10-13 07:10:46,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:10:46,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:10:46,258 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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/sv-benchmarks/c/array-fpi/s42iff.c[589,602] [2021-10-13 07:10:46,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:10:46,291 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:10:46,305 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_1b1f3c36-cce7-45df-ae05-4b743bfd3192/sv-benchmarks/c/array-fpi/s42iff.c[589,602] [2021-10-13 07:10:46,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:10:46,333 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:10:46,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46 WrapperNode [2021-10-13 07:10:46,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:10:46,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:10:46,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:10:46,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:10:46,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:10:46,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:10:46,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:10:46,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:10:46,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:10:46,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:10:46,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:10:46,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:10:46,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (1/1) ... [2021-10-13 07:10:46,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:10:46,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:10:46,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:10:46,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:10:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:10:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:10:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:10:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 07:10:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:10:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:10:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:10:47,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:10:47,156 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-13 07:10:47,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:47 BoogieIcfgContainer [2021-10-13 07:10:47,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:10:47,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:10:47,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:10:47,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:10:47,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:46" (1/3) ... [2021-10-13 07:10:47,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb7fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:47, skipping insertion in model container [2021-10-13 07:10:47,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:46" (2/3) ... [2021-10-13 07:10:47,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb7fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:47, skipping insertion in model container [2021-10-13 07:10:47,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:47" (3/3) ... [2021-10-13 07:10:47,184 INFO L111 eAbstractionObserver]: Analyzing ICFG s42iff.c [2021-10-13 07:10:47,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:10:47,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:10:47,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:10:47,241 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 07:10:47,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:10:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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 07:10:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:10:47,260 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:10:47,261 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:10:47,261 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:10:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:10:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1162179950, now seen corresponding path program 1 times [2021-10-13 07:10:47,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:10:47,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412427104] [2021-10-13 07:10:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:10:47,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:10:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:10:47,484 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 07:10:47,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:10:47,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412427104] [2021-10-13 07:10:47,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412427104] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:10:47,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:10:47,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:10:47,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389082729] [2021-10-13 07:10:47,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:10:47,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:10:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:10:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:10:47,509 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:10:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:10:47,545 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-13 07:10:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:10:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-10-13 07:10:47,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:10:47,556 INFO L225 Difference]: With dead ends: 20 [2021-10-13 07:10:47,556 INFO L226 Difference]: Without dead ends: 9 [2021-10-13 07:10:47,559 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:10:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-13 07:10:47,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-13 07:10:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 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 07:10:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-13 07:10:47,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2021-10-13 07:10:47,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:10:47,593 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-13 07:10:47,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:10:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-10-13 07:10:47,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:10:47,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:10:47,594 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:10:47,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:10:47,595 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:10:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:10:47,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1871859412, now seen corresponding path program 1 times [2021-10-13 07:10:47,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:10:47,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897522551] [2021-10-13 07:10:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:10:47,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:10:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:10:47,669 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 07:10:47,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:10:47,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897522551] [2021-10-13 07:10:47,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897522551] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:10:47,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:10:47,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:10:47,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407041276] [2021-10-13 07:10:47,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:10:47,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:10:47,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:10:47,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:10:47,674 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 07:10:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:10:47,726 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-13 07:10:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:10:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2021-10-13 07:10:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:10:47,728 INFO L225 Difference]: With dead ends: 15 [2021-10-13 07:10:47,728 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:10:47,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:10:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:10:47,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 07:10:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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 07:10:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-13 07:10:47,733 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-10-13 07:10:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:10:47,733 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-13 07:10:47,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 07:10:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-13 07:10:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:10:47,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:10:47,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:10:47,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:10:47,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:10:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:10:47,736 INFO L82 PathProgramCache]: Analyzing trace with hash 908788323, now seen corresponding path program 1 times [2021-10-13 07:10:47,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:10:47,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430172088] [2021-10-13 07:10:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:10:47,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:10:47,786 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:10:47,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789140532] [2021-10-13 07:10:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:10:47,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:10:47,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:10:47,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:10:47,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:10:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:10:47,937 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:10:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:10:48,012 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:10:48,013 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:10:48,014 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:48,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:10:48,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:10:48,236 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:10:48,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:10:48 BoogieIcfgContainer [2021-10-13 07:10:48,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:10:48,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:10:48,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:10:48,273 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:10:48,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:47" (3/4) ... [2021-10-13 07:10:48,275 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:10:48,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b1f3c36-cce7-45df-ae05-4b743bfd3192/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:10:48,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:10:48,333 INFO L168 Benchmark]: Toolchain (without parser) took 2322.38 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 71.8 MB in the beginning and 121.0 MB in the end (delta: -49.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:10:48,334 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 88.1 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:10:48,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.68 ms. Allocated memory is still 113.2 MB. Free memory was 71.6 MB in the beginning and 87.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:10:48,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:10:48,337 INFO L168 Benchmark]: Boogie Preprocessor took 34.46 ms. Allocated memory is still 113.2 MB. Free memory was 85.5 MB in the beginning and 84.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:10:48,337 INFO L168 Benchmark]: RCFGBuilder took 743.04 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 68.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:10:48,338 INFO L168 Benchmark]: TraceAbstraction took 1109.78 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 67.4 MB in the beginning and 123.1 MB in the end (delta: -55.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:10:48,339 INFO L168 Benchmark]: Witness Printer took 58.90 ms. Allocated memory is still 153.1 MB. Free memory was 123.1 MB in the beginning and 121.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:10:48,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 88.1 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.68 ms. Allocated memory is still 113.2 MB. Free memory was 71.6 MB in the beginning and 87.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.46 ms. Allocated memory is still 113.2 MB. Free memory was 85.5 MB in the beginning and 84.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 743.04 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 68.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1109.78 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 67.4 MB in the beginning and 123.1 MB in the end (delta: -55.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.90 ms. Allocated memory is still 153.1 MB. Free memory was 123.1 MB in the beginning and 121.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i