./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/mult_array_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/array-memsafety/mult_array_unsafe_false-valid-deref.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 09bd9857631b51f29efb3117ef1ab581085f3cab ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 21:55:47,520 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:55:47,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:55:47,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:55:47,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:55:47,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:55:47,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:55:47,538 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:55:47,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:55:47,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:55:47,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:55:47,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:55:47,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:55:47,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:55:47,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:55:47,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:55:47,548 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:55:47,550 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:55:47,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:55:47,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:55:47,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:55:47,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:55:47,559 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:55:47,559 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:55:47,559 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:55:47,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:55:47,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:55:47,563 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:55:47,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:55:47,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:55:47,566 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:55:47,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:55:47,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:55:47,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:55:47,568 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:55:47,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:55:47,569 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:55:47,584 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:55:47,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:55:47,586 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:55:47,587 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:55:47,587 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:55:47,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:55:47,587 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:55:47,587 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:55:47,587 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:55:47,588 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:55:47,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:55:47,588 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:55:47,588 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:55:47,588 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:55:47,589 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:55:47,590 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:55:47,590 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:55:47,590 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:55:47,590 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:55:47,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:55:47,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:55:47,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:55:47,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:55:47,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:55:47,592 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:55:47,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:55:47,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09bd9857631b51f29efb3117ef1ab581085f3cab [2019-01-13 21:55:47,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:55:47,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:55:47,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:55:47,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:55:47,647 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:55:47,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/mult_array_unsafe_false-valid-deref.i [2019-01-13 21:55:47,710 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f3649b42/4f61c7cb7c9d4514a281e48b30f22934/FLAG0e2151eed [2019-01-13 21:55:48,233 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:55:48,234 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/mult_array_unsafe_false-valid-deref.i [2019-01-13 21:55:48,247 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f3649b42/4f61c7cb7c9d4514a281e48b30f22934/FLAG0e2151eed [2019-01-13 21:55:48,518 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f3649b42/4f61c7cb7c9d4514a281e48b30f22934 [2019-01-13 21:55:48,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:55:48,523 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:55:48,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:48,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:55:48,528 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:55:48,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580605ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48, skipping insertion in model container [2019-01-13 21:55:48,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:55:48,591 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:55:48,912 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:48,925 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:55:49,043 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:49,094 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:55:49,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49 WrapperNode [2019-01-13 21:55:49,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:49,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:55:49,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:55:49,096 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:55:49,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... [2019-01-13 21:55:49,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:55:49,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:55:49,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:55:49,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:55:49,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:55:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:55:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:55:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-13 21:55:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-13 21:55:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:55:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-13 21:55:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-13 21:55:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-13 21:55:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-13 21:55:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-13 21:55:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-13 21:55:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-13 21:55:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-13 21:55:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-13 21:55:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-13 21:55:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-13 21:55:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-13 21:55:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-13 21:55:49,228 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-13 21:55:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-13 21:55:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-13 21:55:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-13 21:55:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-13 21:55:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-13 21:55:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-13 21:55:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-13 21:55:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-13 21:55:49,238 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-13 21:55:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-13 21:55:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-13 21:55:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-13 21:55:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-13 21:55:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-13 21:55:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-13 21:55:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-13 21:55:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-13 21:55:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:55:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:55:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:55:49,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:55:49,858 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:55:49,859 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-13 21:55:49,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49 BoogieIcfgContainer [2019-01-13 21:55:49,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:55:49,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:55:49,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:55:49,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:55:49,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:55:48" (1/3) ... [2019-01-13 21:55:49,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cac5add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:49, skipping insertion in model container [2019-01-13 21:55:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:49" (2/3) ... [2019-01-13 21:55:49,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cac5add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:49, skipping insertion in model container [2019-01-13 21:55:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49" (3/3) ... [2019-01-13 21:55:49,869 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe_false-valid-deref.i [2019-01-13 21:55:49,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:55:49,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-01-13 21:55:49,901 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-01-13 21:55:49,928 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:55:49,928 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:55:49,929 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:55:49,929 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:55:49,930 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:55:49,930 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:55:49,930 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:55:49,930 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:55:49,931 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:55:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-01-13 21:55:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-13 21:55:49,954 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:49,954 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:49,956 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-01-13 21:55:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:49,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1113687630, now seen corresponding path program 1 times [2019-01-13 21:55:49,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:49,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,047 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:55:50,047 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:55:50,047 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-13 21:55:50,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:55:50,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:55:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:55:50,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:55:50,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-13 21:55:50,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 21:55:50,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 21:55:50,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:55:50,218 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2019-01-13 21:55:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:55:50,295 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-01-13 21:55:50,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 21:55:50,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-01-13 21:55:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:55:50,308 INFO L225 Difference]: With dead ends: 33 [2019-01-13 21:55:50,308 INFO L226 Difference]: Without dead ends: 30 [2019-01-13 21:55:50,310 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:55:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-01-13 21:55:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-01-13 21:55:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-01-13 21:55:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-01-13 21:55:50,348 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2019-01-13 21:55:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:55:50,348 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-01-13 21:55:50,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 21:55:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-01-13 21:55:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:55:50,349 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:50,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:50,350 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-01-13 21:55:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:50,350 INFO L82 PathProgramCache]: Analyzing trace with hash 164578132, now seen corresponding path program 1 times [2019-01-13 21:55:50,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:50,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:50,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,364 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:55:50,364 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:55:50,364 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-13 21:55:50,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 21:55:50,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 21:55:50,562 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-13 21:55:50,613 INFO L701 Elim1Store]: detected not equals via solver [2019-01-13 21:55:50,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2019-01-13 21:55:50,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-01-13 21:55:50,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-13 21:55:50,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-13 21:55:50,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-13 21:55:50,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-01-13 21:55:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 21:55:50,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 21:55:50,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 21:55:50,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 21:55:50,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 21:55:50,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:55:50,848 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2019-01-13 21:55:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 21:55:50,923 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-01-13 21:55:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 21:55:50,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-01-13 21:55:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 21:55:50,925 INFO L225 Difference]: With dead ends: 28 [2019-01-13 21:55:50,925 INFO L226 Difference]: Without dead ends: 28 [2019-01-13 21:55:50,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 21:55:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-13 21:55:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-01-13 21:55:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-13 21:55:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2019-01-13 21:55:50,932 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2019-01-13 21:55:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 21:55:50,932 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2019-01-13 21:55:50,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 21:55:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2019-01-13 21:55:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-13 21:55:50,934 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:50,934 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:50,934 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-01-13 21:55:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash 164578133, now seen corresponding path program 1 times [2019-01-13 21:55:50,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:50,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:50,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:50,948 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-13 21:55:50,948 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-13 21:55:50,948 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-13 21:55:50,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:51,053 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 21:55:51,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:55:51 BoogieIcfgContainer [2019-01-13 21:55:51,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:55:51,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:55:51,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:55:51,091 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:55:51,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49" (3/4) ... [2019-01-13 21:55:51,096 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-13 21:55:51,154 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:55:51,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:55:51,155 INFO L168 Benchmark]: Toolchain (without parser) took 2632.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -73.1 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,156 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:51,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,158 INFO L168 Benchmark]: Boogie Preprocessor took 60.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,159 INFO L168 Benchmark]: RCFGBuilder took 705.72 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: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,160 INFO L168 Benchmark]: TraceAbstraction took 1227.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:51,161 INFO L168 Benchmark]: Witness Printer took 63.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:51,166 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 570.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 705.72 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: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1227.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. * Witness Printer took 63.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 550]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L541] int i, j; [L542] int length = __VERIFIER_nondet_int(); [L543] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L543] length = 1 VAL [length=1] [L544] int fac = __VERIFIER_nondet_int(); [L545] COND FALSE !(fac < 1 || fac >= 2147483647 / (sizeof(int) * length)) VAL [fac=536, length=1] [L546] int *arr = __builtin_alloca (length); [L547] int *arr2 = __builtin_alloca (fac*length); VAL [__builtin_alloca (fac*length)={5921:0}, __builtin_alloca (length)={5922:0}, arr={5922:0}, arr2={5921:0}, fac=536, length=1] [L548] COND FALSE !(!arr || !arr2) [L549] i=0 VAL [__builtin_alloca (fac*length)={5921:0}, __builtin_alloca (length)={5922:0}, arr={5922:0}, arr2={5921:0}, fac=536, i=0, length=1] [L549] COND TRUE i