./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/bubble_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs --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 3904eabd3ac5671d8bfd7199410990878a421a86 ............................................................................................................................................... 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_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs --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 3904eabd3ac5671d8bfd7199410990878a421a86 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-16 03:08:44,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:08:44,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:08:44,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:08:44,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:08:44,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:08:44,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:08:44,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:08:44,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:08:44,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:08:44,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:08:44,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:08:44,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:08:44,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:08:44,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:08:44,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:08:44,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:08:44,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:08:44,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:08:44,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:08:44,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:08:44,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:08:44,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:08:44,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:08:44,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:08:44,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:08:44,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:08:44,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:08:44,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:08:44,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:08:44,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:08:44,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:08:44,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:08:44,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:08:44,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:08:44,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:08:44,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:08:44,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:08:44,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:08:44,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:08:44,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:08:44,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:08:44,352 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:08:44,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:08:44,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:08:44,353 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:08:44,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:08:44,354 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:08:44,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:08:44,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:08:44,354 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:08:44,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:08:44,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:08:44,355 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:08:44,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:08:44,355 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:08:44,356 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:08:44,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:08:44,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:08:44,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:08:44,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:08:44,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:08:44,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:08:44,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:08:44,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:08:44,358 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:08:44,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:08:44,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:08:44,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:08:44,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:08:44,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:08:44,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:08:44,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:44,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:08:44,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:08:44,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:08:44,361 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:08:44,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:08:44,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:08:44,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:08:44,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:08:44,362 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_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3904eabd3ac5671d8bfd7199410990878a421a86 [2021-10-16 03:08:44,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:08:44,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:08:44,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:08:44,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:08:44,694 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:08:44,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-10-16 03:08:44,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/239305a40/9bf9fab306f044c983c9ecfefeb43f82/FLAGa32f805f0 [2021-10-16 03:08:45,288 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:08:45,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i [2021-10-16 03:08:45,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/239305a40/9bf9fab306f044c983c9ecfefeb43f82/FLAGa32f805f0 [2021-10-16 03:08:45,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/239305a40/9bf9fab306f044c983c9ecfefeb43f82 [2021-10-16 03:08:45,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:08:45,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:08:45,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:45,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:08:45,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:08:45,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:45" (1/1) ... [2021-10-16 03:08:45,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29551b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:45, skipping insertion in model container [2021-10-16 03:08:45,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:45" (1/1) ... [2021-10-16 03:08:45,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:08:45,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:08:45,912 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_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-10-16 03:08:45,981 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-16 03:08:45,984 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-16 03:08:45,986 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-16 03:08:46,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:46,076 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-16 03:08:46,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60d46f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:46, skipping insertion in model container [2021-10-16 03:08:46,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:46,078 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 03:08:46,081 INFO L168 Benchmark]: Toolchain (without parser) took 465.21 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 82.2 MB in the end (delta: -28.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:46,082 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.3 MB in the beginning and 67.3 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:08:46,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.98 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 53.5 MB in the beginning and 82.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:46,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.3 MB in the beginning and 67.3 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.98 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 53.5 MB in the beginning and 82.2 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 295]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:08:48,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:08:48,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:08:48,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:08:48,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:08:48,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:08:48,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:08:48,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:08:48,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:08:48,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:08:48,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:08:48,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:08:48,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:08:48,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:08:48,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:08:48,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:08:48,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:08:48,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:08:48,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:08:48,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:08:48,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:08:48,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:08:48,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:08:48,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:08:48,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:08:48,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:08:48,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:08:48,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:08:48,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:08:48,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:08:48,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:08:48,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:08:48,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:08:48,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:08:48,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:08:48,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:08:48,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:08:48,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:08:48,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:08:48,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:08:48,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:08:48,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:08:48,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:08:48,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:08:48,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:08:48,461 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:08:48,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:08:48,462 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:08:48,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:08:48,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:08:48,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:08:48,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:08:48,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:08:48,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:08:48,465 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:08:48,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:08:48,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:08:48,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:08:48,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:08:48,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:08:48,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:08:48,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:08:48,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:08:48,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:48,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:08:48,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:08:48,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:08:48,469 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:08:48,470 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:08:48,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:08:48,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:08:48,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:08:48,471 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_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3904eabd3ac5671d8bfd7199410990878a421a86 [2021-10-16 03:08:48,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:08:48,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:08:48,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:08:48,944 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:08:48,945 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:08:48,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-10-16 03:08:49,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/c430eef93/4bc977626366490fba365d7a64184681/FLAG52b0f54cb [2021-10-16 03:08:49,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:08:49,771 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i [2021-10-16 03:08:49,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/c430eef93/4bc977626366490fba365d7a64184681/FLAG52b0f54cb [2021-10-16 03:08:50,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/data/c430eef93/4bc977626366490fba365d7a64184681 [2021-10-16 03:08:50,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:08:50,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:08:50,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:50,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:08:50,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:08:50,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f7ae0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50, skipping insertion in model container [2021-10-16 03:08:50,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:08:50,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:08:50,286 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_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-10-16 03:08:50,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:50,516 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 03:08:50,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:08:50,540 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_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-10-16 03:08:50,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:50,653 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:08:50,665 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_97212335-5f5e-4409-a622-85f0d8f68a93/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-10-16 03:08:50,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:50,768 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:08:50,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50 WrapperNode [2021-10-16 03:08:50,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:50,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:50,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:08:50,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:08:50,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:50,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:08:50,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:08:50,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:08:50,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:50,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:51,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:51,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:51,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:51,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:08:51,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:08:51,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:08:51,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:08:51,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (1/1) ... [2021-10-16 03:08:51,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:08:51,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:08:51,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:08:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-16 03:08:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:08:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:08:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:08:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:08:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:08:52,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:08:52,680 INFO L299 CfgBuilder]: Removed 143 assume(true) statements. [2021-10-16 03:08:52,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:52 BoogieIcfgContainer [2021-10-16 03:08:52,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:08:52,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:08:52,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:08:52,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:08:52,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:08:50" (1/3) ... [2021-10-16 03:08:52,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbb47a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:08:52, skipping insertion in model container [2021-10-16 03:08:52,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:50" (2/3) ... [2021-10-16 03:08:52,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbb47a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:08:52, skipping insertion in model container [2021-10-16 03:08:52,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:52" (3/3) ... [2021-10-16 03:08:52,691 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-10-16 03:08:52,697 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:08:52,697 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-10-16 03:08:52,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:08:52,757 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 [2021-10-16 03:08:52,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-10-16 03:08:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 178 states have (on average 1.8876404494382022) internal successors, (336), 212 states have internal predecessors, (336), 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) [2021-10-16 03:08:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:08:52,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:08:52,785 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:08:52,786 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-10-16 03:08:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:08:52,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1809897809, now seen corresponding path program 1 times [2021-10-16 03:08:52,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:08:52,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113523631] [2021-10-16 03:08:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:52,807 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:08:52,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:08:52,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:08:52,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:08:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:08:52,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:08:52,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:08:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:08:53,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:08:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:08:53,045 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:08:53,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113523631] [2021-10-16 03:08:53,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113523631] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:08:53,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:08:53,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:08:53,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738148039] [2021-10-16 03:08:53,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:08:53,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:08:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:08:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:08:53,086 INFO L87 Difference]: Start difference. First operand has 213 states, 178 states have (on average 1.8876404494382022) internal successors, (336), 212 states have internal predecessors, (336), 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 3.5) internal successors, (7), 2 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) [2021-10-16 03:08:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:08:53,132 INFO L93 Difference]: Finished difference Result 424 states and 670 transitions. [2021-10-16 03:08:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:08:53,133 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-16 03:08:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:08:53,152 INFO L225 Difference]: With dead ends: 424 [2021-10-16 03:08:53,152 INFO L226 Difference]: Without dead ends: 204 [2021-10-16 03:08:53,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:08:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-16 03:08:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-10-16 03:08:53,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 170 states have (on average 1.2294117647058824) internal successors, (209), 203 states have internal predecessors, (209), 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) [2021-10-16 03:08:53,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 209 transitions. [2021-10-16 03:08:53,205 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 209 transitions. Word has length 7 [2021-10-16 03:08:53,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:08:53,205 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 209 transitions. [2021-10-16 03:08:53,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-16 03:08:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 209 transitions. [2021-10-16 03:08:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 03:08:53,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:08:53,207 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:08:53,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:08:53,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:08:53,409 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-10-16 03:08:53,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:08:53,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2031969607, now seen corresponding path program 1 times [2021-10-16 03:08:53,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:08:53,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712722757] [2021-10-16 03:08:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:53,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:08:53,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:08:53,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:08:53,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:08:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:08:53,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:08:53,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:08:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:08:53,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:08:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:08:53,734 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:08:53,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712722757] [2021-10-16 03:08:53,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712722757] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:08:53,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:08:53,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 03:08:53,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466047123] [2021-10-16 03:08:53,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:08:53,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:08:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:08:53,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:08:53,746 INFO L87 Difference]: Start difference. First operand 204 states and 209 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2021-10-16 03:08:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:08:54,470 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2021-10-16 03:08:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:08:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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 14 [2021-10-16 03:08:54,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:08:54,474 INFO L225 Difference]: With dead ends: 204 [2021-10-16 03:08:54,474 INFO L226 Difference]: Without dead ends: 200 [2021-10-16 03:08:54,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:08:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-16 03:08:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-10-16 03:08:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 168 states have (on average 1.2202380952380953) internal successors, (205), 199 states have internal predecessors, (205), 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) [2021-10-16 03:08:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 205 transitions. [2021-10-16 03:08:54,509 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 205 transitions. Word has length 14 [2021-10-16 03:08:54,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:08:54,510 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 205 transitions. [2021-10-16 03:08:54,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2021-10-16 03:08:54,510 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 205 transitions. [2021-10-16 03:08:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 03:08:54,511 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:08:54,511 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:08:54,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:08:54,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:08:54,725 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-10-16 03:08:54,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:08:54,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1132347312, now seen corresponding path program 1 times [2021-10-16 03:08:54,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:08:54,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967899538] [2021-10-16 03:08:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:54,727 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:08:54,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:08:54,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:08:54,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:08:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:08:54,961 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:08:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:08:55,244 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 03:08:55,245 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:08:55,246 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:55,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:08:55,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:08:55,476 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:08:55,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:08:55 BoogieIcfgContainer [2021-10-16 03:08:55,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:08:55,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:08:55,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:08:55,555 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:08:55,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:52" (3/4) ... [2021-10-16 03:08:55,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 03:08:55,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:08:55,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:08:55,684 INFO L168 Benchmark]: Toolchain (without parser) took 5640.01 ms. Allocated memory was 62.9 MB in the beginning and 104.9 MB in the end (delta: 41.9 MB). Free memory was 41.4 MB in the beginning and 63.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,684 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:08:55,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.48 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 31.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.57 ms. Allocated memory is still 62.9 MB. Free memory was 31.4 MB in the beginning and 43.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,685 INFO L168 Benchmark]: Boogie Preprocessor took 149.80 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 38.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,686 INFO L168 Benchmark]: RCFGBuilder took 1628.61 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 48.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,686 INFO L168 Benchmark]: TraceAbstraction took 2869.32 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 47.8 MB in the beginning and 70.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,687 INFO L168 Benchmark]: Witness Printer took 127.78 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 63.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:55,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 722.48 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 31.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 133.57 ms. Allocated memory is still 62.9 MB. Free memory was 31.4 MB in the beginning and 43.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.80 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 38.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1628.61 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 48.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2869.32 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 47.8 MB in the beginning and 70.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * Witness Printer took 127.78 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 63.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 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: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; VAL [gl_list={5:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={5:0}] [L680] COND TRUE 1 VAL [gl_list={5:0}] [L683] tmp = __VERIFIER_nondet_int() [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp VAL [gl_list={5:0}] [L642] COND FALSE !(! node) VAL [gl_list={5:0}] [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new VAL [gl_list={5:0}] [L656] COND TRUE 1 VAL [gl_list={5:0}] [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [gl_list={5:0}] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={5:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; VAL [gl_list={5:0}] [L179] COND TRUE 1 VAL [gl_list={5:0}] [L181] COND FALSE !(! head) VAL [gl_list={5:0}] [L192] COND TRUE 1 VAL [gl_list={5:0}] [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [gl_list={5:0}] [L199] COND TRUE ! __cil_tmp6 [L46] reach_error() VAL [gl_list={5:0}] - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 213 locations, 34 error locations. Started 1 CEGAR loops. OverallTime: 2726.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 830.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 411 SDtfs, 216 SDslu, 150 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 633.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 84.2ms SsaConstructionTime, 216.0ms SatisfiabilityAnalysisTime, 267.2ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 3 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 03:08:55,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97212335-5f5e-4409-a622-85f0d8f68a93/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...