./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-examples/relax_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer --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 e02a752b8526c7ea13dd41e170cc478e0b3b0993 ......................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-09 00:09:45,220 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:09:45,221 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:09:45,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:09:45,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:09:45,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:09:45,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:09:45,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:09:45,231 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:09:45,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:09:45,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:09:45,232 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:09:45,233 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:09:45,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:09:45,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:09:45,234 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:09:45,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:09:45,236 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:09:45,237 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:09:45,237 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:09:45,238 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:09:45,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:09:45,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:09:45,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:09:45,240 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:09:45,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:09:45,241 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:09:45,241 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:09:45,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:09:45,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:09:45,242 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:09:45,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:09:45,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:09:45,242 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:09:45,243 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:09:45,244 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:09:45,244 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-09 00:09:45,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:09:45,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:09:45,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:09:45,254 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:09:45,254 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:09:45,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 00:09:45,255 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:09:45,255 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:09:45,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:09:45,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:09:45,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 00:09:45,257 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:09:45,257 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer 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 -> e02a752b8526c7ea13dd41e170cc478e0b3b0993 [2018-12-09 00:09:45,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:09:45,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:09:45,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:09:45,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:09:45,294 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:09:45,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/../../sv-benchmarks/c/array-examples/relax_false-valid-deref.i [2018-12-09 00:09:45,330 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/data/e1b2fe9a2/cca15146d2b14709932f79a64cd146ef/FLAGb5630fb81 [2018-12-09 00:09:45,703 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:09:45,703 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/sv-benchmarks/c/array-examples/relax_false-valid-deref.i [2018-12-09 00:09:45,710 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/data/e1b2fe9a2/cca15146d2b14709932f79a64cd146ef/FLAGb5630fb81 [2018-12-09 00:09:46,075 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/data/e1b2fe9a2/cca15146d2b14709932f79a64cd146ef [2018-12-09 00:09:46,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:09:46,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-09 00:09:46,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:09:46,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:09:46,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:09:46,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2c39d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46, skipping insertion in model container [2018-12-09 00:09:46,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:09:46,105 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:09:46,253 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:09:46,293 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:09:46,320 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:09:46,339 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:09:46,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46 WrapperNode [2018-12-09 00:09:46,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:09:46,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:09:46,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:09:46,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:09:46,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... [2018-12-09 00:09:46,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:09:46,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:09:46,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:09:46,374 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:09:46,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/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 [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2018-12-09 00:09:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-09 00:09:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-09 00:09:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-09 00:09:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-09 00:09:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-09 00:09:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-09 00:09:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-09 00:09:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-09 00:09:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-09 00:09:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:09:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:09:46,685 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:09:46,686 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-09 00:09:46,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:09:46 BoogieIcfgContainer [2018-12-09 00:09:46,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:09:46,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:09:46,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:09:46,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:09:46,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:09:46" (1/3) ... [2018-12-09 00:09:46,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d752fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:09:46, skipping insertion in model container [2018-12-09 00:09:46,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:09:46" (2/3) ... [2018-12-09 00:09:46,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d752fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:09:46, skipping insertion in model container [2018-12-09 00:09:46,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:09:46" (3/3) ... [2018-12-09 00:09:46,690 INFO L112 eAbstractionObserver]: Analyzing ICFG relax_false-valid-deref.i [2018-12-09 00:09:46,696 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:09:46,701 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-12-09 00:09:46,710 INFO L257 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2018-12-09 00:09:46,725 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:09:46,725 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:09:46,726 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 00:09:46,726 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:09:46,726 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:09:46,726 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:09:46,726 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:09:46,726 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:09:46,726 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:09:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-12-09 00:09:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 00:09:46,740 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:09:46,741 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:09:46,742 INFO L423 AbstractCegarLoop]: === Iteration 1 === [is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-12-09 00:09:46,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:09:46,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1054971632, now seen corresponding path program 1 times [2018-12-09 00:09:46,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:09:46,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:09:46,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:09:46,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:09:46,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:09:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:09:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:09:46,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:09:46,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:09:46,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:09:46,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:09:46,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:09:46,877 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 5 states. [2018-12-09 00:09:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:09:46,968 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2018-12-09 00:09:46,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:09:46,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-09 00:09:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:09:46,974 INFO L225 Difference]: With dead ends: 78 [2018-12-09 00:09:46,974 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 00:09:46,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:09:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 00:09:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-12-09 00:09:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-09 00:09:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2018-12-09 00:09:47,002 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 11 [2018-12-09 00:09:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:09:47,003 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2018-12-09 00:09:47,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:09:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2018-12-09 00:09:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 00:09:47,003 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:09:47,003 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:09:47,003 INFO L423 AbstractCegarLoop]: === Iteration 2 === [is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION]=== [2018-12-09 00:09:47,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:09:47,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1054971631, now seen corresponding path program 1 times [2018-12-09 00:09:47,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:09:47,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:09:47,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:09:47,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:09:47,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:09:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:09:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:09:47,050 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:09:47,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:09:47 BoogieIcfgContainer [2018-12-09 00:09:47,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:09:47,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:09:47,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:09:47,064 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:09:47,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:09:46" (3/4) ... [2018-12-09 00:09:47,065 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 00:09:47,090 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4f3c41d-f4ff-4fb6-91e7-dfd036af02cf/bin-2019/uautomizer/witness.graphml [2018-12-09 00:09:47,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:09:47,090 INFO L168 Benchmark]: Toolchain (without parser) took 1012.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 950.6 MB in the beginning and 999.0 MB in the end (delta: -48.3 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,091 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:09:47,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,092 INFO L168 Benchmark]: Boogie Preprocessor took 33.25 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,092 INFO L168 Benchmark]: RCFGBuilder took 312.48 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,092 INFO L168 Benchmark]: TraceAbstraction took 377.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,093 INFO L168 Benchmark]: Witness Printer took 26.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:09:47,094 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.25 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 312.48 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 377.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * Witness Printer took 26.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 569]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] int *pat=malloc(sizeof(int)*pat_len); [L586] int *a=malloc(sizeof(int)*a_len); VAL [a={3:0}, a_len=-2, malloc(sizeof(int)*a_len)={3:0}, malloc(sizeof(int)*pat_len)={5:0}, pat={5:0}, pat_len=-4294967295] [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={3:0}, pat={5:0}] [L564] COND FALSE !(pat_length>a_length+1) [L566] int shift=0; [L567] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={3:0}, a={3:0}, a_length=4294967294, i=0, pat={5:0}, pat={5:0}, pat_length=1, shift=0] [L567] COND TRUE i