./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memsetNonZero_-write.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memsetNonZero_-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 cef7b9fedda26f2b86e76703e63f684bda898c92 ....................................................................................................................................................................................................................................................................................... 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 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:55:40,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:55:40,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:55:41,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:55:41,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:55:41,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:55:41,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:55:41,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:55:41,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:55:41,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:55:41,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:55:41,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:55:41,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:55:41,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:55:41,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:55:41,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:55:41,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:55:41,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:55:41,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:55:41,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:55:41,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:55:41,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:55:41,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:55:41,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:55:41,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:55:41,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:55:41,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:55:41,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:55:41,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:55:41,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:55:41,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:55:41,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:55:41,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:55:41,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:55:41,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:55:41,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:55:41,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:55:41,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:55:41,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:55:41,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:55:41,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:55:41,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:55:41,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:55:41,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:55:41,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:55:41,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:55:41,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:55:41,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:55:41,116 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:55:41,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:55:41,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:55:41,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:55:41,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:55:41,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:55:41,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:55:41,119 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:55:41,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:55:41,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:55:41,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:55:41,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:55:41,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:55:41,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:55:41,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:55:41,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:55:41,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:55:41,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:55:41,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef7b9fedda26f2b86e76703e63f684bda898c92 [2021-08-30 17:55:41,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:55:41,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:55:41,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:55:41,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:55:41,479 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:55:41,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memsetNonZero_-write.c [2021-08-30 17:55:41,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b8f3ed6/eaf39f97226345a2a8601e8345fbc9a1/FLAGc484909df [2021-08-30 17:55:41,988 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:55:41,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memsetNonZero_-write.c [2021-08-30 17:55:41,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b8f3ed6/eaf39f97226345a2a8601e8345fbc9a1/FLAGc484909df [2021-08-30 17:55:42,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b8f3ed6/eaf39f97226345a2a8601e8345fbc9a1 [2021-08-30 17:55:42,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:55:42,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:55:42,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:55:42,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:55:42,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:55:42,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308de022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42, skipping insertion in model container [2021-08-30 17:55:42,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:55:42,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:55:42,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:55:42,156 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:55:42,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:55:42,205 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:55:42,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42 WrapperNode [2021-08-30 17:55:42,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:55:42,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:55:42,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:55:42,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:55:42,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:55:42,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:55:42,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:55:42,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:55:42,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (1/1) ... [2021-08-30 17:55:42,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:55:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:55:42,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 17:55:42,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 17:55:42,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:55:42,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:55:42,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:55:42,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:55:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:55:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:55:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:55:42,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:55:42,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:55:42,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:55:42,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:55:42,399 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:55:42,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:55:42,436 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-30 17:55:42,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:42 BoogieIcfgContainer [2021-08-30 17:55:42,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:55:42,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:55:42,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:55:42,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:55:42,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:55:42" (1/3) ... [2021-08-30 17:55:42,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8ad589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:55:42, skipping insertion in model container [2021-08-30 17:55:42,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:42" (2/3) ... [2021-08-30 17:55:42,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8ad589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:55:42, skipping insertion in model container [2021-08-30 17:55:42,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:42" (3/3) ... [2021-08-30 17:55:42,446 INFO L111 eAbstractionObserver]: Analyzing ICFG memsetNonZero_-write.c [2021-08-30 17:55:42,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:55:42,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-30 17:55:42,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:55:42,503 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 17:55:42,503 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-30 17:55:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 17:55:42,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 17:55:42,525 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:55:42,526 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:55:42,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-08-30 17:55:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:55:42,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2021-08-30 17:55:42,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 17:55:42,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8129339] [2021-08-30 17:55:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:55:42,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 17:55:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:55:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 17:55:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:55:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:55:42,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 17:55:42,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8129339] [2021-08-30 17:55:42,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8129339] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 17:55:42,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:55:42,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 17:55:42,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056047802] [2021-08-30 17:55:42,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 17:55:42,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 17:55:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 17:55:42,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 17:55:42,785 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 17:55:42,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:55:42,875 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-08-30 17:55:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 17:55:42,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-08-30 17:55:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:55:42,883 INFO L225 Difference]: With dead ends: 19 [2021-08-30 17:55:42,883 INFO L226 Difference]: Without dead ends: 16 [2021-08-30 17:55:42,885 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.09ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 17:55:42,895 INFO L928 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.13ms IncrementalHoareTripleChecker+Time [2021-08-30 17:55:42,899 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 72.13ms Time] [2021-08-30 17:55:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-30 17:55:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-30 17:55:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 17:55:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-30 17:55:42,927 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-08-30 17:55:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:55:42,927 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-30 17:55:42,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 17:55:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-30 17:55:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 17:55:42,928 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:55:42,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:55:42,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 17:55:42,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-08-30 17:55:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:55:42,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2021-08-30 17:55:42,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 17:55:42,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937196837] [2021-08-30 17:55:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:55:42,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 17:55:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:55:42,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 17:55:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:55:42,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 17:55:42,999 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 17:55:43,000 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr1REQUIRES_VIOLATION (2 of 3 remaining) [2021-08-30 17:55:43,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION (1 of 3 remaining) [2021-08-30 17:55:43,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2021-08-30 17:55:43,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 17:55:43,009 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:55:43,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:55:43 BoogieIcfgContainer [2021-08-30 17:55:43,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:55:43,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:55:43,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:55:43,027 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:55:43,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:42" (3/4) ... [2021-08-30 17:55:43,030 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 17:55:43,067 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 17:55:43,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:55:43,070 INFO L158 Benchmark]: Toolchain (without parser) took 1049.23ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 28.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-08-30 17:55:43,071 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:55:43,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.79ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 48.0MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-30 17:55:43,072 INFO L158 Benchmark]: Boogie Preprocessor took 29.14ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:55:43,073 INFO L158 Benchmark]: RCFGBuilder took 188.34ms. Allocated memory is still 65.0MB. Free memory was 46.7MB in the beginning and 38.7MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 17:55:43,073 INFO L158 Benchmark]: TraceAbstraction took 585.97ms. Allocated memory is still 65.0MB. Free memory was 38.4MB in the beginning and 30.3MB in the end (delta: 8.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-08-30 17:55:43,077 INFO L158 Benchmark]: Witness Printer took 40.90ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 28.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:55:43,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.79ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 48.0MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.14ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 188.34ms. Allocated memory is still 65.0MB. Free memory was 46.7MB in the beginning and 38.7MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 585.97ms. Allocated memory is still 65.0MB. Free memory was 38.4MB in the beginning and 30.3MB in the end (delta: 8.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 40.90ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 28.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 27]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] struct ppp_comp_stats cstats ; VAL [cstats={2:0}] - UnprovableResult [Line: 27]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 515.64ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.37ms, AutomataDifference: 137.06ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 11.97ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 72.13ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 42.77ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 36 mSolverCounterSat, 1.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.09ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 15.94ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.19ms SsaConstructionTime, 51.16ms SatisfiabilityAnalysisTime, 118.47ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 17:55:43,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...