./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 .................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:41:15,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:41:15,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:41:15,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:41:15,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:41:15,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:41:15,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:41:15,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:41:15,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:41:15,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:41:15,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:41:15,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:41:15,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:41:15,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:41:15,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:41:15,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:41:15,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:41:15,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:41:15,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:41:15,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:41:15,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:41:15,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:41:15,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:41:15,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:41:15,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:41:15,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:41:15,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:41:15,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:41:15,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:41:15,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:41:15,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:41:15,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:41:15,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:41:15,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:41:15,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:41:15,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:41:15,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:41:15,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:41:15,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:41:15,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:41:15,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:41:15,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2019-11-26 02:41:15,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:41:15,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:41:15,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:41:15,548 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:41:15,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:41:15,549 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:41:15,549 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:41:15,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:41:15,549 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:41:15,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:41:15,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:41:15,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:41:15,550 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:41:15,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 02:41:15,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:41:15,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:41:15,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:41:15,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:41:15,552 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:41:15,552 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:41:15,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:41:15,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:41:15,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:41:15,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:41:15,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:41:15,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:41:15,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:41:15,554 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:41:15,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:41:15,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:41:15,554 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) 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 -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 [2019-11-26 02:41:15,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:41:15,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:41:15,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:41:15,733 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:41:15,733 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:41:15,734 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/../../sv-benchmarks/c/list-properties/splice-1.i [2019-11-26 02:41:15,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/data/cc7360cc5/4cc2e0ac48b84e04b3da70fe02621934/FLAGba8084b38 [2019-11-26 02:41:16,214 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:41:16,214 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/sv-benchmarks/c/list-properties/splice-1.i [2019-11-26 02:41:16,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/data/cc7360cc5/4cc2e0ac48b84e04b3da70fe02621934/FLAGba8084b38 [2019-11-26 02:41:16,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/data/cc7360cc5/4cc2e0ac48b84e04b3da70fe02621934 [2019-11-26 02:41:16,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:41:16,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:41:16,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:41:16,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:41:16,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:41:16,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6afe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16, skipping insertion in model container [2019-11-26 02:41:16,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:41:16,643 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:41:17,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:41:17,062 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:41:17,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:41:17,178 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:41:17,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17 WrapperNode [2019-11-26 02:41:17,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:41:17,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:41:17,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:41:17,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:41:17,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:41:17,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:41:17,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:41:17,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:41:17,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:41:17,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:41:17,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:41:17,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:41:17,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:41:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:41:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:41:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:41:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:41:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:41:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:41:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:41:17,892 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:41:17,892 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 02:41:17,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17 BoogieIcfgContainer [2019-11-26 02:41:17,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:41:17,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:41:17,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:41:17,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:41:17,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:41:16" (1/3) ... [2019-11-26 02:41:17,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c0a960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:41:17, skipping insertion in model container [2019-11-26 02:41:17,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:17" (2/3) ... [2019-11-26 02:41:17,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c0a960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:41:17, skipping insertion in model container [2019-11-26 02:41:17,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17" (3/3) ... [2019-11-26 02:41:17,904 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2019-11-26 02:41:17,913 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:41:17,920 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-11-26 02:41:17,930 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-11-26 02:41:17,950 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:41:17,950 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 02:41:17,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:41:17,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:41:17,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:41:17,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:41:17,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:41:17,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:41:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2019-11-26 02:41:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:41:17,977 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:17,977 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:41:17,978 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-11-26 02:41:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:17,983 INFO L82 PathProgramCache]: Analyzing trace with hash 889599241, now seen corresponding path program 1 times [2019-11-26 02:41:17,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:41:17,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2024056916] [2019-11-26 02:41:17,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:18,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:41:18,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:41:18,178 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-26 02:41:18,178 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:41:18,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:41:18,185 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 02:41:18,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-26 02:41:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:18,211 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:41:18,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:18,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2024056916] [2019-11-26 02:41:18,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:41:18,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-26 02:41:18,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006705319] [2019-11-26 02:41:18,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:41:18,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:41:18,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:41:18,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:41:18,243 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 4 states. [2019-11-26 02:41:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:41:18,568 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2019-11-26 02:41:18,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:41:18,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-26 02:41:18,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:41:18,578 INFO L225 Difference]: With dead ends: 83 [2019-11-26 02:41:18,578 INFO L226 Difference]: Without dead ends: 76 [2019-11-26 02:41:18,579 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:41:18,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-26 02:41:18,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2019-11-26 02:41:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-26 02:41:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2019-11-26 02:41:18,611 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 6 [2019-11-26 02:41:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:41:18,611 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2019-11-26 02:41:18,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:41:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2019-11-26 02:41:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:41:18,612 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:18,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:41:18,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:18,823 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-11-26 02:41:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:18,823 INFO L82 PathProgramCache]: Analyzing trace with hash 889599242, now seen corresponding path program 1 times [2019-11-26 02:41:18,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:41:18,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1451611075] [2019-11-26 02:41:18,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:18,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:41:18,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:41:18,912 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-26 02:41:18,912 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:41:18,918 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:41:18,919 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 02:41:18,919 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-26 02:41:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:18,945 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:41:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:41:19,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1451611075] [2019-11-26 02:41:19,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:41:19,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:41:19,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187300211] [2019-11-26 02:41:19,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:41:19,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:41:19,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:41:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:41:19,028 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand 6 states. [2019-11-26 02:41:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:41:19,601 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2019-11-26 02:41:19,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:41:19,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-11-26 02:41:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:41:19,603 INFO L225 Difference]: With dead ends: 86 [2019-11-26 02:41:19,603 INFO L226 Difference]: Without dead ends: 86 [2019-11-26 02:41:19,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:41:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-11-26 02:41:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2019-11-26 02:41:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-26 02:41:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2019-11-26 02:41:19,620 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 6 [2019-11-26 02:41:19,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:41:19,620 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2019-11-26 02:41:19,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:41:19,620 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2019-11-26 02:41:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:41:19,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:41:19,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:41:19,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:19,822 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2019-11-26 02:41:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2102797385, now seen corresponding path program 1 times [2019-11-26 02:41:19,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:41:19,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [493223347] [2019-11-26 02:41:19,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:41:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:41:19,975 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 02:41:19,975 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:41:20,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:41:20,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:41:20 BoogieIcfgContainer [2019-11-26 02:41:20,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:41:20,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:41:20,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:41:20,199 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:41:20,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17" (3/4) ... [2019-11-26 02:41:20,202 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:41:20,248 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_41b63327-9f62-4ceb-8ec5-beefca87790f/bin/utaipan/witness.graphml [2019-11-26 02:41:20,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:41:20,249 INFO L168 Benchmark]: Toolchain (without parser) took 3677.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 962.4 MB in the end (delta: -17.7 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:20,250 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:20,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:20,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:20,251 INFO L168 Benchmark]: Boogie Preprocessor took 38.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:20,251 INFO L168 Benchmark]: RCFGBuilder took 630.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:20,252 INFO L168 Benchmark]: TraceAbstraction took 2304.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.4 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:20,252 INFO L168 Benchmark]: Witness Printer took 48.98 ms. Allocated memory is still 1.2 GB. Free memory is still 962.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:20,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 605.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 630.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2304.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.4 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. * Witness Printer took 48.98 ms. Allocated memory is still 1.2 GB. Free memory is still 962.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); [L523] COND FALSE !(a == 0) [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 [L544] EXPR a->h [L544] COND TRUE a->h == 3 [L544] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 29 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 75 SDtfs, 263 SDslu, 36 SDs, 0 SdLazy, 152 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 800 SizeOfPredicates, 8 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 11 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...