./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/array-examples/relax-1.i -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 c75be524a4f1d004e59f9ab0d874b08a78bf36d3 ........................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-30f4e4a [2019-11-28 02:33:37,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:33:37,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:33:37,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:33:37,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:33:37,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:33:37,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:33:37,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:33:37,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:33:37,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:33:37,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:33:37,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:33:37,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:33:37,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:33:37,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:33:37,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:33:37,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:33:37,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:33:37,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:33:37,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:33:37,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:33:37,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:33:37,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:33:37,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:33:37,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:33:37,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:33:37,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:33:37,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:33:37,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:33:37,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:33:37,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:33:37,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:33:37,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:33:37,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:33:37,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:33:37,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:33:37,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:33:37,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:33:37,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:33:37,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:33:37,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:33:37,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:33:37,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:33:37,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:33:37,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:33:37,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:33:37,349 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:33:37,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:33:37,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:33:37,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:33:37,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:33:37,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:33:37,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:33:37,352 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:33:37,353 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:33:37,353 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:33:37,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:33:37,354 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:33:37,354 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:33:37,354 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:33:37,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:33:37,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:33:37,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:33:37,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:33:37,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:33:37,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:33:37,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:33:37,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:33:37,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:33:37,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> c75be524a4f1d004e59f9ab0d874b08a78bf36d3 [2019-11-28 02:33:37,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:33:37,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:33:37,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:33:37,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:33:37,697 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:33:37,698 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2019-11-28 02:33:37,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724e840d2/1b1f7b5e98664e25ae3f84c9f90c7eb5/FLAG8b902baf9 [2019-11-28 02:33:38,284 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:33:38,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2019-11-28 02:33:38,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724e840d2/1b1f7b5e98664e25ae3f84c9f90c7eb5/FLAG8b902baf9 [2019-11-28 02:33:38,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724e840d2/1b1f7b5e98664e25ae3f84c9f90c7eb5 [2019-11-28 02:33:38,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:33:38,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:33:38,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:38,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:33:38,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:33:38,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:38" (1/1) ... [2019-11-28 02:33:38,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3207bfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:38, skipping insertion in model container [2019-11-28 02:33:38,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:38" (1/1) ... [2019-11-28 02:33:38,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:33:38,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:33:39,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:39,156 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:33:39,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:39,263 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:33:39,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39 WrapperNode [2019-11-28 02:33:39,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:39,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:33:39,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:33:39,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:33:39,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (1/1) ... [2019-11-28 02:33:39,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:33:39,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:33:39,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:33:39,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:33:39,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (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 [2019-11-28 02:33:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:33:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:33:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-28 02:33:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:33:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:33:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2019-11-28 02:33:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:33:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-28 02:33:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-28 02:33:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:33:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:33:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-28 02:33:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:33:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:33:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:33:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:33:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:33:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:33:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:33:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:33:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:33:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:33:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:33:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:33:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:33:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:33:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:33:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:33:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:33:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:33:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:33:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:33:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:33:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:33:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:33:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:33:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:33:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:33:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:33:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:33:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:33:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:33:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:33:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:33:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:33:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 02:33:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:33:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:33:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:33:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:33:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:33:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:33:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:33:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:33:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:33:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:33:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:33:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:33:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:33:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:33:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:33:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:33:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:33:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:33:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:33:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:33:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:33:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:33:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:33:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:33:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:33:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:33:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:33:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:33:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:33:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:33:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:33:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:33:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:33:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:33:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:33:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:33:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:33:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:33:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:33:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:33:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2019-11-28 02:33:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:33:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:33:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:33:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:33:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:33:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:33:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:33:40,116 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:33:40,116 INFO L297 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-28 02:33:40,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:40 BoogieIcfgContainer [2019-11-28 02:33:40,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:33:40,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:33:40,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:33:40,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:33:40,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:33:38" (1/3) ... [2019-11-28 02:33:40,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8179871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:40, skipping insertion in model container [2019-11-28 02:33:40,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:39" (2/3) ... [2019-11-28 02:33:40,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8179871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:40, skipping insertion in model container [2019-11-28 02:33:40,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:40" (3/3) ... [2019-11-28 02:33:40,136 INFO L109 eAbstractionObserver]: Analyzing ICFG relax-1.i [2019-11-28 02:33:40,147 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:33:40,157 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2019-11-28 02:33:40,169 INFO L249 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2019-11-28 02:33:40,189 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:33:40,189 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:33:40,189 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:33:40,190 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:33:40,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:33:40,190 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:33:40,190 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:33:40,193 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:33:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2019-11-28 02:33:40,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:33:40,221 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:40,222 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:33:40,223 INFO L410 AbstractCegarLoop]: === Iteration 1 === [is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:33:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:40,228 INFO L82 PathProgramCache]: Analyzing trace with hash -774493943, now seen corresponding path program 1 times [2019-11-28 02:33:40,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:33:40,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651021000] [2019-11-28 02:33:40,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:33:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:33:40,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651021000] [2019-11-28 02:33:40,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:40,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:33:40,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926005589] [2019-11-28 02:33:40,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:33:40,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:33:40,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:33:40,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:33:40,532 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 6 states. [2019-11-28 02:33:40,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:40,919 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2019-11-28 02:33:40,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:33:40,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-28 02:33:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:40,933 INFO L225 Difference]: With dead ends: 90 [2019-11-28 02:33:40,933 INFO L226 Difference]: Without dead ends: 87 [2019-11-28 02:33:40,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:33:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-28 02:33:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-11-28 02:33:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-28 02:33:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2019-11-28 02:33:40,988 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 11 [2019-11-28 02:33:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:40,988 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2019-11-28 02:33:40,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:33:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2019-11-28 02:33:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:33:40,990 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:40,990 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:33:40,991 INFO L410 AbstractCegarLoop]: === Iteration 2 === [is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:33:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash -774493942, now seen corresponding path program 1 times [2019-11-28 02:33:40,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:33:40,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571096552] [2019-11-28 02:33:40,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:33:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:33:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:33:41,202 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:33:41,202 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:33:41,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:33:41 BoogieIcfgContainer [2019-11-28 02:33:41,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:33:41,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:33:41,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:33:41,257 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:33:41,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:40" (3/4) ... [2019-11-28 02:33:41,263 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:33:41,331 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:33:41,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:33:41,335 INFO L168 Benchmark]: Toolchain (without parser) took 2734.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 956.3 MB in the beginning and 993.8 MB in the end (delta: -37.5 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,336 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:33:41,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,341 INFO L168 Benchmark]: Boogie Preprocessor took 69.55 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,342 INFO L168 Benchmark]: RCFGBuilder took 784.71 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,345 INFO L168 Benchmark]: TraceAbstraction took 1133.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,347 INFO L168 Benchmark]: Witness Printer took 76.97 ms. Allocated memory is still 1.2 GB. Free memory is still 993.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:33:41,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 662.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.55 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.71 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1133.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. * Witness Printer took 76.97 ms. Allocated memory is still 1.2 GB. Free memory is still 993.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 570]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L585] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L586] int *pat=malloc(sizeof(int)*pat_len); [L587] int *a=malloc(sizeof(int)*a_len); VAL [a={-1:0}, a_len=-2, malloc(sizeof(int)*a_len)={-1:0}, malloc(sizeof(int)*pat_len)={-2:0}, pat={-2:0}, pat_len=-4294967295] [L588] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={-1:0}, pat={-2:0}] [L565] COND FALSE !(pat_length>a_length+1) [L567] int shift=0; [L568] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={-1:0}, a={-1:0}, a_length=4294967294, i=0, pat={-2:0}, pat={-2:0}, pat_length=1, shift=0] [L568] COND TRUE i