./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e7174a28ac52b04ed4de9f759628aa0f94f2add ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:42:38,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:42:38,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:42:38,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:42:38,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:42:38,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:42:38,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:42:38,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:42:38,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:42:38,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:42:38,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:42:38,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:42:38,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:42:38,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:42:38,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:42:38,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:42:38,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:42:38,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:42:38,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:42:38,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:42:38,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:42:38,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:42:38,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:42:38,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:42:38,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:42:38,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:42:38,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:42:38,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:42:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:42:38,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:42:38,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:42:38,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:42:38,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:42:38,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:42:38,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:42:38,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:42:38,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:42:38,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:42:38,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:42:38,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:42:38,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:42:38,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-11-26 02:42:38,441 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:42:38,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:42:38,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:42:38,442 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:42:38,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:42:38,442 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:42:38,442 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:42:38,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:42:38,443 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:42:38,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:42:38,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:42:38,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:42:38,444 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:42:38,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:42:38,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:42:38,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:42:38,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:42:38,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 02:42:38,445 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 02:42:38,445 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 02:42:38,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:42:38,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:42:38,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:42:38,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:42:38,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:42:38,446 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:42:38,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:42:38,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:42:38,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:42:38,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:42:38,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:38,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:42:38,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:42:38,448 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:42:38,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:42:38,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:42:38,448 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_cfdb4602-b3de-4cc8-ba92-35450959d4e4/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 0e7174a28ac52b04ed4de9f759628aa0f94f2add [2019-11-26 02:42:38,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:42:38,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:42:38,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:42:38,617 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:42:38,618 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:42:38,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/../../sv-benchmarks/c/memsafety/test-0158-2.i [2019-11-26 02:42:38,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/data/067325643/e8ce900f54814ea58da2b250974e2e66/FLAGe2b29d96f [2019-11-26 02:42:39,127 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:42:39,130 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/sv-benchmarks/c/memsafety/test-0158-2.i [2019-11-26 02:42:39,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/data/067325643/e8ce900f54814ea58da2b250974e2e66/FLAGe2b29d96f [2019-11-26 02:42:39,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/bin/utaipan/data/067325643/e8ce900f54814ea58da2b250974e2e66 [2019-11-26 02:42:39,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:42:39,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:42:39,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:39,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:42:39,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:42:39,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680c5d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39, skipping insertion in model container [2019-11-26 02:42:39,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:42:39,215 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:42:39,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:39,605 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:42:39,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:39,715 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:42:39,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39 WrapperNode [2019-11-26 02:42:39,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:39,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:39,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:42:39,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:42:39,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:39,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:42:39,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:42:39,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:42:39,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... [2019-11-26 02:42:39,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:42:39,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:42:39,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:42:39,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:42:39,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/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 02:42:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:42:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:42:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:42:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-26 02:42:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:42:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:42:39,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:42:40,134 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:42:40,134 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:42:40,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:40 BoogieIcfgContainer [2019-11-26 02:42:40,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:42:40,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:42:40,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:42:40,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:42:40,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:42:39" (1/3) ... [2019-11-26 02:42:40,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712bb49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:40, skipping insertion in model container [2019-11-26 02:42:40,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:39" (2/3) ... [2019-11-26 02:42:40,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712bb49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:40, skipping insertion in model container [2019-11-26 02:42:40,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:40" (3/3) ... [2019-11-26 02:42:40,141 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2019-11-26 02:42:40,149 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:42:40,155 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-26 02:42:40,164 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-26 02:42:40,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:42:40,181 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 02:42:40,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:42:40,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:42:40,181 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:42:40,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:42:40,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:42:40,182 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:42:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-26 02:42:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:42:40,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:40,213 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:42:40,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:42:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2019-11-26 02:42:40,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:40,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1533827066] [2019-11-26 02:42:40,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/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 02:42:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:40,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:42:40,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:40,429 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-11-26 02:42:40,430 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 1 case distinctions, treesize of input 9 treesize of output 11 [2019-11-26 02:42:40,431 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:42:40,440 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:42:40,442 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-26 02:42:40,442 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-11-26 02:42:40,463 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 02:42:40,463 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:40,471 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 02:42:40,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533827066] [2019-11-26 02:42:40,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:40,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:42:40,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307545899] [2019-11-26 02:42:40,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:40,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:40,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:40,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:40,494 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-11-26 02:42:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:40,571 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-26 02:42:40,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:40,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-26 02:42:40,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:40,588 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:42:40,589 INFO L226 Difference]: Without dead ends: 11 [2019-11-26 02:42:40,590 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-26 02:42:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-26 02:42:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 02:42:40,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-11-26 02:42:40,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2019-11-26 02:42:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:40,620 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-11-26 02:42:40,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-11-26 02:42:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:42:40,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:40,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:42:40,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:40,825 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:42:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:40,826 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-11-26 02:42:40,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:40,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1708849980] [2019-11-26 02:42:40,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/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 02:42:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:40,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:42:40,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:40,918 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_11|], 1=[|v_#valid_18|]} [2019-11-26 02:42:40,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-26 02:42:40,927 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-26 02:42:40,927 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 02:42:40,944 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:42:40,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-26 02:42:40,954 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-26 02:42:40,955 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-26 02:42:40,969 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 02:42:40,970 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-26 02:42:40,970 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2019-11-26 02:42:40,987 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 02:42:40,987 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:41,020 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 02:42:41,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1708849980] [2019-11-26 02:42:41,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:41,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-26 02:42:41,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831552977] [2019-11-26 02:42:41,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:42:41,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:41,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:42:41,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:42:41,023 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2019-11-26 02:42:41,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:41,062 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-11-26 02:42:41,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:41,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-26 02:42:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:41,064 INFO L225 Difference]: With dead ends: 8 [2019-11-26 02:42:41,064 INFO L226 Difference]: Without dead ends: 8 [2019-11-26 02:42:41,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:42:41,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-26 02:42:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-26 02:42:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-26 02:42:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-26 02:42:41,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2019-11-26 02:42:41,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:41,066 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-26 02:42:41,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:42:41,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-26 02:42:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:42:41,067 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:41,067 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:41,269 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:41,269 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-11-26 02:42:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2019-11-26 02:42:41,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:41,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [371759575] [2019-11-26 02:42:41,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfdb4602-b3de-4cc8-ba92-35450959d4e4/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 02:42:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:42:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:42:41,440 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 02:42:41,440 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:42:41,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:41,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:42:41 BoogieIcfgContainer [2019-11-26 02:42:41,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:42:41,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:42:41,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:42:41,662 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:42:41,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:40" (3/4) ... [2019-11-26 02:42:41,665 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:42:41,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:42:41,666 INFO L168 Benchmark]: Toolchain (without parser) took 2509.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -65.2 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,667 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:41,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.27 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,669 INFO L168 Benchmark]: Boogie Preprocessor took 23.28 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,669 INFO L168 Benchmark]: RCFGBuilder took 346.17 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: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,670 INFO L168 Benchmark]: TraceAbstraction took 1525.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:41,670 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:41,673 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 558.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.27 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.28 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 346.17 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: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1525.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 512]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 512. Possible FailurePath: [L514-L521] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L522] data.p0 = malloc(37U) [L523] data.str.p2 = &data [L524] data.str.c[1] = sizeof data.str.p1 [L525] return 0; [L525] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 7 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 5 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 106 SizeOfPredicates, 5 NumberOfNonLiveVariables, 38 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...