./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/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 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 0.1.23-0cd3be1 [2018-11-28 11:39:26,883 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:39:26,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:39:26,892 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:39:26,892 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:39:26,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:39:26,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:39:26,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:39:26,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:39:26,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:39:26,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:39:26,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:39:26,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:39:26,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:39:26,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:39:26,901 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:39:26,902 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:39:26,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:39:26,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:39:26,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:39:26,907 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:39:26,908 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:39:26,910 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:39:26,910 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:39:26,910 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:39:26,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:39:26,912 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:39:26,912 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:39:26,913 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:39:26,914 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:39:26,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:39:26,914 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:39:26,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:39:26,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:39:26,915 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:39:26,916 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:39:26,916 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 11:39:26,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:39:26,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:39:26,927 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:39:26,927 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:39:26,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:39:26,927 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:39:26,927 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:39:26,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 11:39:26,928 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:39:26,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:39:26,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:39:26,929 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:39:26,930 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:39:26,930 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:39:26,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:39:26,930 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_95f90e17-4225-406b-ab80-03c905e6e03a/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 -> 09bd9857631b51f29efb3117ef1ab581085f3cab [2018-11-28 11:39:26,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:39:26,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:39:26,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:39:26,964 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:39:26,964 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:39:26,965 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-11-28 11:39:27,002 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/data/ab77619ba/1061a6642d0d440ea6e8c6d419bf8acd/FLAG0fc12a989 [2018-11-28 11:39:27,391 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:39:27,391 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/sv-benchmarks/c/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-11-28 11:39:27,399 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/data/ab77619ba/1061a6642d0d440ea6e8c6d419bf8acd/FLAG0fc12a989 [2018-11-28 11:39:27,409 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/data/ab77619ba/1061a6642d0d440ea6e8c6d419bf8acd [2018-11-28 11:39:27,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:39:27,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 11:39:27,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:39:27,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:39:27,415 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:39:27,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5f719e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27, skipping insertion in model container [2018-11-28 11:39:27,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:39:27,444 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:39:27,622 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:39:27,629 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:39:27,697 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:39:27,722 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:39:27,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27 WrapperNode [2018-11-28 11:39:27,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:39:27,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:39:27,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:39:27,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:39:27,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... [2018-11-28 11:39:27,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:39:27,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:39:27,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:39:27,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:39:27,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/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 [2018-11-28 11:39:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:39:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:39:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 11:39:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 11:39:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:39:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 11:39:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 11:39:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 11:39:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 11:39:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 11:39:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 11:39:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 11:39:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 11:39:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 11:39:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 11:39:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 11:39:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 11:39:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 11:39:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 11:39:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:39:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:39:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:39:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:39:28,052 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:39:28,053 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 11:39:28,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:28 BoogieIcfgContainer [2018-11-28 11:39:28,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:39:28,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:39:28,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:39:28,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:39:28,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:39:27" (1/3) ... [2018-11-28 11:39:28,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161fb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:28, skipping insertion in model container [2018-11-28 11:39:28,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:27" (2/3) ... [2018-11-28 11:39:28,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161fb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:28, skipping insertion in model container [2018-11-28 11:39:28,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:28" (3/3) ... [2018-11-28 11:39:28,058 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe_false-valid-deref.i [2018-11-28 11:39:28,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:39:28,069 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 11:39:28,078 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 11:39:28,092 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:39:28,092 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:39:28,093 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 11:39:28,093 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:39:28,093 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:39:28,093 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:39:28,093 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:39:28,093 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:39:28,093 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:39:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 11:39:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 11:39:28,111 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:28,112 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:39:28,113 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 11:39:28,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:28,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1113687630, now seen corresponding path program 1 times [2018-11-28 11:39:28,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:28,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:28,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,175 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 11:39:28,175 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 11:39:28,175 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/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 [2018-11-28 11:39:28,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:28,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:39:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:39:28,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:28,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:39:28,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:39:28,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:39:28,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:39:28,263 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-28 11:39:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:28,298 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-28 11:39:28,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:39:28,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 11:39:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:28,304 INFO L225 Difference]: With dead ends: 33 [2018-11-28 11:39:28,304 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 11:39:28,306 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 [2018-11-28 11:39:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 11:39:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 11:39:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 11:39:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-28 11:39:28,327 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2018-11-28 11:39:28,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:28,327 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-28 11:39:28,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:39:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-28 11:39:28,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 11:39:28,328 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:28,328 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:39:28,328 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 11:39:28,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:28,329 INFO L82 PathProgramCache]: Analyzing trace with hash 164578132, now seen corresponding path program 1 times [2018-11-28 11:39:28,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:28,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:28,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,336 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 11:39:28,336 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 11:39:28,336 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/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 [2018-11-28 11:39:28,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:39:28,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:39:28,402 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 11:39:28,406 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 [2018-11-28 11:39:28,410 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 [2018-11-28 11:39:28,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 11:39:28,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:39:28,419 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. [2018-11-28 11:39:28,420 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-11-28 11:39:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:39:28,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:39:28,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:39:28,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:39:28,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:39:28,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:39:28,462 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2018-11-28 11:39:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:39:28,486 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-11-28 11:39:28,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:39:28,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 11:39:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:39:28,487 INFO L225 Difference]: With dead ends: 28 [2018-11-28 11:39:28,487 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 11:39:28,488 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 [2018-11-28 11:39:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 11:39:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 11:39:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 11:39:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-11-28 11:39:28,491 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2018-11-28 11:39:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:39:28,491 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-11-28 11:39:28,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:39:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-11-28 11:39:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 11:39:28,491 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:39:28,492 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:39:28,492 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 11:39:28,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:39:28,492 INFO L82 PathProgramCache]: Analyzing trace with hash 164578133, now seen corresponding path program 1 times [2018-11-28 11:39:28,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:39:28,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:39:28,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:39:28,498 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 11:39:28,498 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 11:39:28,498 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/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 [2018-11-28 11:39:28,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:39:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:39:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:39:28,563 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:39:28,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:39:28 BoogieIcfgContainer [2018-11-28 11:39:28,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:39:28,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:39:28,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:39:28,580 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:39:28,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:28" (3/4) ... [2018-11-28 11:39:28,582 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 11:39:28,607 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_95f90e17-4225-406b-ab80-03c905e6e03a/bin-2019/uautomizer/witness.graphml [2018-11-28 11:39:28,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:39:28,608 INFO L168 Benchmark]: Toolchain (without parser) took 1196.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -59.3 MB). Peak memory consumption was 94.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,609 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:39:28,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,609 INFO L168 Benchmark]: Boogie Preprocessor took 35.88 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,609 INFO L168 Benchmark]: RCFGBuilder took 294.35 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,610 INFO L168 Benchmark]: TraceAbstraction took 526.72 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,610 INFO L168 Benchmark]: Witness Printer took 27.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:39:28,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.88 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 294.35 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 526.72 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: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. * Witness Printer took 27.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. 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=1143, length=1] [L546] int *arr = __builtin_alloca (length); [L547] int *arr2 = __builtin_alloca (fac*length); VAL [__builtin_alloca (fac*length)={6:0}, __builtin_alloca (length)={7:0}, arr={7:0}, arr2={6:0}, fac=1143, length=1] [L548] COND FALSE !(!arr || !arr2) [L549] i=0 VAL [__builtin_alloca (fac*length)={6:0}, __builtin_alloca (length)={7:0}, arr={7:0}, arr2={6:0}, fac=1143, i=0, length=1] [L549] COND TRUE i