./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/ldv-memsafety/memset3_false-valid-deref-write.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/ldv-memsafety/memset3_false-valid-deref-write.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97106d24c91338d3a7f71605e6dcf95bdff73f56 ......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 19:06:02,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 19:06:02,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 19:06:02,185 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 19:06:02,186 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 19:06:02,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 19:06:02,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 19:06:02,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 19:06:02,196 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 19:06:02,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 19:06:02,202 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 19:06:02,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 19:06:02,204 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 19:06:02,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 19:06:02,208 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 19:06:02,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 19:06:02,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 19:06:02,215 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 19:06:02,224 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 19:06:02,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 19:06:02,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 19:06:02,233 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 19:06:02,238 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 19:06:02,238 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 19:06:02,238 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 19:06:02,239 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 19:06:02,241 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 19:06:02,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 19:06:02,247 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 19:06:02,249 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 19:06:02,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 19:06:02,252 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 19:06:02,253 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 19:06:02,253 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 19:06:02,254 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 19:06:02,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 19:06:02,257 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 19:06:02,277 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 19:06:02,277 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 19:06:02,278 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 19:06:02,279 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 19:06:02,279 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 19:06:02,279 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 19:06:02,279 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 19:06:02,279 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 19:06:02,280 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 19:06:02,281 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 19:06:02,282 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 19:06:02,283 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 19:06:02,283 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 19:06:02,283 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 19:06:02,283 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 19:06:02,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 19:06:02,283 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 19:06:02,284 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 19:06:02,284 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 19:06:02,284 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 19:06:02,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 97106d24c91338d3a7f71605e6dcf95bdff73f56 [2019-01-14 19:06:02,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 19:06:02,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 19:06:02,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 19:06:02,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 19:06:02,355 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 19:06:02,356 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-memsafety/memset3_false-valid-deref-write.c [2019-01-14 19:06:02,422 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330c83590/09057bc312cc46928246367d9fc0133a/FLAGaa9d0202d [2019-01-14 19:06:02,821 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 19:06:02,822 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-memsafety/memset3_false-valid-deref-write.c [2019-01-14 19:06:02,828 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330c83590/09057bc312cc46928246367d9fc0133a/FLAGaa9d0202d [2019-01-14 19:06:03,206 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330c83590/09057bc312cc46928246367d9fc0133a [2019-01-14 19:06:03,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 19:06:03,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 19:06:03,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 19:06:03,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 19:06:03,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 19:06:03,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a29e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03, skipping insertion in model container [2019-01-14 19:06:03,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 19:06:03,256 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 19:06:03,461 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:06:03,476 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 19:06:03,504 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 19:06:03,521 INFO L195 MainTranslator]: Completed translation [2019-01-14 19:06:03,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03 WrapperNode [2019-01-14 19:06:03,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 19:06:03,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 19:06:03,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 19:06:03,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 19:06:03,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... [2019-01-14 19:06:03,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 19:06:03,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 19:06:03,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 19:06:03,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 19:06:03,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 19:06:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 19:06:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 19:06:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 19:06:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-01-14 19:06:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-01-14 19:06:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 19:06:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 19:06:03,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-01-14 19:06:03,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 19:06:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 19:06:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 19:06:03,871 WARN L745 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-14 19:06:03,988 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 19:06:03,988 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-14 19:06:03,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:06:03 BoogieIcfgContainer [2019-01-14 19:06:03,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 19:06:03,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 19:06:03,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 19:06:03,995 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 19:06:03,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 07:06:03" (1/3) ... [2019-01-14 19:06:03,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec657f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:06:03, skipping insertion in model container [2019-01-14 19:06:03,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 07:06:03" (2/3) ... [2019-01-14 19:06:03,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec657f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 07:06:03, skipping insertion in model container [2019-01-14 19:06:03,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:06:03" (3/3) ... [2019-01-14 19:06:03,998 INFO L112 eAbstractionObserver]: Analyzing ICFG memset3_false-valid-deref-write.c [2019-01-14 19:06:04,009 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 19:06:04,017 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 19:06:04,034 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 19:06:04,060 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 19:06:04,061 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 19:06:04,061 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 19:06:04,061 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 19:06:04,062 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 19:06:04,062 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 19:06:04,062 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 19:06:04,062 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 19:06:04,062 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 19:06:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-01-14 19:06:04,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 19:06:04,088 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:06:04,089 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:06:04,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2019-01-14 19:06:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:06:04,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2019-01-14 19:06:04,099 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:06:04,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:06:04,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:06:04,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:06:04,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:06:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 19:06:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 19:06:04,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 19:06:04,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 19:06:04,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 19:06:04,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 19:06:04,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 19:06:04,291 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-01-14 19:06:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 19:06:04,424 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-14 19:06:04,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 19:06:04,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 19:06:04,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 19:06:04,453 INFO L225 Difference]: With dead ends: 19 [2019-01-14 19:06:04,453 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 19:06:04,458 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 19:06:04,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 19:06:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-14 19:06:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 19:06:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-14 19:06:04,501 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-01-14 19:06:04,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 19:06:04,504 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-14 19:06:04,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 19:06:04,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-14 19:06:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 19:06:04,505 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 19:06:04,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 19:06:04,506 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION]=== [2019-01-14 19:06:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 19:06:04,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2019-01-14 19:06:04,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 19:06:04,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 19:06:04,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:06:04,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 19:06:04,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 19:06:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:06:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 19:06:04,559 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 19:06:04,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 07:06:04 BoogieIcfgContainer [2019-01-14 19:06:04,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 19:06:04,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 19:06:04,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 19:06:04,583 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 19:06:04,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 07:06:03" (3/4) ... [2019-01-14 19:06:04,586 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 19:06:04,624 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 19:06:04,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 19:06:04,625 INFO L168 Benchmark]: Toolchain (without parser) took 1413.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -111.9 MB). Peak memory consumption was 801.9 kB. Max. memory is 11.5 GB. [2019-01-14 19:06:04,627 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 19:06:04,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 19:06:04,628 INFO L168 Benchmark]: Boogie Preprocessor took 41.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 19:06:04,629 INFO L168 Benchmark]: RCFGBuilder took 425.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-01-14 19:06:04,630 INFO L168 Benchmark]: TraceAbstraction took 591.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-14 19:06:04,630 INFO L168 Benchmark]: Witness Printer took 41.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 19:06:04,635 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 425.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 591.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] struct ppp_comp_stats cstats ; [L27] void *point; [L28] point = (void *)(& cstats) VAL [cstats={1:0}, point={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 1 SDslu, 10 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...