java -ea -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf -i ../../../trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 18:18:09,826 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 18:18:09,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 18:18:09,842 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 18:18:09,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 18:18:09,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 18:18:09,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 18:18:09,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 18:18:09,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 18:18:09,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 18:18:09,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 18:18:09,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 18:18:09,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 18:18:09,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 18:18:09,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 18:18:09,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 18:18:09,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 18:18:09,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 18:18:09,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 18:18:09,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 18:18:09,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 18:18:09,865 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 18:18:09,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 18:18:09,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 18:18:09,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 18:18:09,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 18:18:09,870 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 18:18:09,871 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 18:18:09,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 18:18:09,873 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 18:18:09,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 18:18:09,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 18:18:09,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 18:18:09,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 18:18:09,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 18:18:09,877 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 18:18:09,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf [2018-11-14 18:18:09,897 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 18:18:09,898 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 18:18:09,899 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 18:18:09,899 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 18:18:09,899 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 18:18:09,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 18:18:09,900 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 18:18:09,900 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 18:18:09,900 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 18:18:09,900 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 18:18:09,901 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 18:18:09,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 18:18:09,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 18:18:09,902 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 18:18:09,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 18:18:09,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 18:18:09,903 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 18:18:09,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 18:18:09,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 18:18:09,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 18:18:09,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 18:18:09,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 18:18:09,904 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 18:18:09,904 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 18:18:09,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 18:18:09,904 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 18:18:09,905 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 18:18:09,905 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 18:18:09,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 18:18:09,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 18:18:09,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 18:18:09,989 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 18:18:09,989 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 18:18:09,990 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-11-14 18:18:10,060 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e273347/3c69f1e183044a699f0f9f2c2ac2f578/FLAG97c77516f [2018-11-14 18:18:10,630 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 18:18:10,631 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-11-14 18:18:10,651 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e273347/3c69f1e183044a699f0f9f2c2ac2f578/FLAG97c77516f [2018-11-14 18:18:10,672 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e273347/3c69f1e183044a699f0f9f2c2ac2f578 [2018-11-14 18:18:10,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 18:18:10,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 18:18:10,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 18:18:10,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 18:18:10,690 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 18:18:10,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:18:10" (1/1) ... [2018-11-14 18:18:10,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23002895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:10, skipping insertion in model container [2018-11-14 18:18:10,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:18:10" (1/1) ... [2018-11-14 18:18:10,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 18:18:10,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 18:18:11,260 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:18:11,283 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 18:18:11,362 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:18:11,515 INFO L195 MainTranslator]: Completed translation [2018-11-14 18:18:11,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11 WrapperNode [2018-11-14 18:18:11,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 18:18:11,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 18:18:11,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 18:18:11,517 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 18:18:11,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (1/1) ... [2018-11-14 18:18:11,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 18:18:11,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 18:18:11,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 18:18:11,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 18:18:11,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (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 [2018-11-14 18:18:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 18:18:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 18:18:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-14 18:18:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 18:18:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 18:18:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 18:18:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-14 18:18:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-14 18:18:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-14 18:18:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-14 18:18:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-14 18:18:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-14 18:18:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-14 18:18:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-14 18:18:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-14 18:18:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-14 18:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-14 18:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-14 18:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-14 18:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-14 18:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-14 18:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-14 18:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-14 18:18:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-14 18:18:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-14 18:18:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-14 18:18:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-14 18:18:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-14 18:18:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-14 18:18:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-14 18:18:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-14 18:18:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-14 18:18:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-14 18:18:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-14 18:18:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-14 18:18:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-14 18:18:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-14 18:18:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-14 18:18:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-14 18:18:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-14 18:18:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-14 18:18:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-14 18:18:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-14 18:18:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-14 18:18:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-14 18:18:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-14 18:18:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-14 18:18:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 18:18:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 18:18:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 18:18:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 18:18:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-14 18:18:12,804 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 18:18:12,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:18:12 BoogieIcfgContainer [2018-11-14 18:18:12,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 18:18:12,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 18:18:12,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 18:18:12,809 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 18:18:12,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 06:18:10" (1/3) ... [2018-11-14 18:18:12,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ab7b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:18:12, skipping insertion in model container [2018-11-14 18:18:12,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:18:11" (2/3) ... [2018-11-14 18:18:12,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ab7b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:18:12, skipping insertion in model container [2018-11-14 18:18:12,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:18:12" (3/3) ... [2018-11-14 18:18:12,813 INFO L112 eAbstractionObserver]: Analyzing ICFG list-ext_false-unreach-call_false-valid-deref.i [2018-11-14 18:18:12,821 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 18:18:12,831 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 18:18:12,849 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 18:18:12,887 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 18:18:12,888 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 18:18:12,888 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 18:18:12,888 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 18:18:12,888 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 18:18:12,889 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 18:18:12,889 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 18:18:12,889 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 18:18:12,889 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 18:18:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-14 18:18:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-14 18:18:12,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:18:12,916 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:18:12,918 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:18:12,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:18:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1461083020, now seen corresponding path program 1 times [2018-11-14 18:18:12,929 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:18:12,930 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 18:18:12,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:18:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:18:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:18:13,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 18:18:13,104 INFO L256 TraceCheckUtils]: 0: Hoare triple {44#true} call ULTIMATE.init(); {44#true} is VALID [2018-11-14 18:18:13,107 INFO L273 TraceCheckUtils]: 1: Hoare triple {44#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {44#true} is VALID [2018-11-14 18:18:13,108 INFO L273 TraceCheckUtils]: 2: Hoare triple {44#true} assume true; {44#true} is VALID [2018-11-14 18:18:13,109 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {44#true} {44#true} #121#return; {44#true} is VALID [2018-11-14 18:18:13,109 INFO L256 TraceCheckUtils]: 4: Hoare triple {44#true} call #t~ret18 := main(); {44#true} is VALID [2018-11-14 18:18:13,109 INFO L273 TraceCheckUtils]: 5: Hoare triple {44#true} ~i~0 := 0bv32;~y~0 := 0bv32;call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~a~0.base, ~a~0.offset := #t~malloc0.base, #t~malloc0.offset; {44#true} is VALID [2018-11-14 18:18:13,109 INFO L273 TraceCheckUtils]: 6: Hoare triple {44#true} assume !(~a~0.base == 0bv32 && ~a~0.offset == 0bv32); {44#true} is VALID [2018-11-14 18:18:13,110 INFO L273 TraceCheckUtils]: 7: Hoare triple {44#true} havoc ~t~0.base, ~t~0.offset;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {44#true} is VALID [2018-11-14 18:18:13,111 INFO L273 TraceCheckUtils]: 8: Hoare triple {44#true} assume !true; {45#false} is VALID [2018-11-14 18:18:13,111 INFO L273 TraceCheckUtils]: 9: Hoare triple {45#false} assume !true; {45#false} is VALID [2018-11-14 18:18:13,111 INFO L273 TraceCheckUtils]: 10: Hoare triple {45#false} call write~intINTTYPE4(3bv32, ~p~0.base, ~p~0.offset, 4bv32);~i~0 := 0bv32;~y~0 := 0bv32;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {45#false} is VALID [2018-11-14 18:18:13,111 INFO L273 TraceCheckUtils]: 11: Hoare triple {45#false} assume !true; {45#false} is VALID [2018-11-14 18:18:13,112 INFO L273 TraceCheckUtils]: 12: Hoare triple {45#false} assume !true; {45#false} is VALID [2018-11-14 18:18:13,112 INFO L273 TraceCheckUtils]: 13: Hoare triple {45#false} call #t~mem15 := read~intINTTYPE4(~p~0.base, ~p~0.offset, 4bv32); {45#false} is VALID [2018-11-14 18:18:13,113 INFO L273 TraceCheckUtils]: 14: Hoare triple {45#false} assume #t~mem15 != 3bv32 || ~bvslt32(~bvadd32(~i~0, ~y~0), 20bv32);havoc #t~mem15; {45#false} is VALID [2018-11-14 18:18:13,113 INFO L273 TraceCheckUtils]: 15: Hoare triple {45#false} assume !false; {45#false} is VALID [2018-11-14 18:18:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 18:18:13,117 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 18:18:13,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 18:18:13,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 18:18:13,130 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-14 18:18:13,133 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 18:18:13,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 18:18:13,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:18:13,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 18:18:13,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 18:18:13,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 18:18:13,256 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-14 18:18:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:18:13,869 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2018-11-14 18:18:13,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 18:18:13,869 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-14 18:18:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 18:18:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 18:18:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 88 transitions. [2018-11-14 18:18:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 18:18:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 88 transitions. [2018-11-14 18:18:13,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 88 transitions. [2018-11-14 18:18:14,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:18:14,366 INFO L225 Difference]: With dead ends: 68 [2018-11-14 18:18:14,367 INFO L226 Difference]: Without dead ends: 27 [2018-11-14 18:18:14,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 18:18:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-14 18:18:14,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-14 18:18:14,416 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 18:18:14,416 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2018-11-14 18:18:14,417 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-14 18:18:14,417 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-14 18:18:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:18:14,421 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-14 18:18:14,421 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-14 18:18:14,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:18:14,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:18:14,422 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-14 18:18:14,423 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-14 18:18:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:18:14,428 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-14 18:18:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-14 18:18:14,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:18:14,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:18:14,429 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 18:18:14,430 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 18:18:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-14 18:18:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-14 18:18:14,434 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 16 [2018-11-14 18:18:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 18:18:14,435 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-14 18:18:14,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 18:18:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-14 18:18:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-14 18:18:14,436 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:18:14,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:18:14,437 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:18:14,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:18:14,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1879300472, now seen corresponding path program 1 times [2018-11-14 18:18:14,438 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:18:14,438 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 18:18:14,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:18:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:18:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:18:14,597 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 18:18:14,668 WARN L170 areAnnotationChecker]: exitENTRY has no Hoare annotation [2018-11-14 18:18:14,669 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-14 18:18:14,669 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:18:14,669 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:18:14,669 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 18:18:14,669 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 18:18:14,670 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:18:14,673 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:18:14,673 WARN L170 areAnnotationChecker]: L630 has no Hoare annotation [2018-11-14 18:18:14,673 WARN L170 areAnnotationChecker]: L630 has no Hoare annotation [2018-11-14 18:18:14,673 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: L630-1 has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: L630-1 has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: L630-3 has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: L633-3 has no Hoare annotation [2018-11-14 18:18:14,674 WARN L170 areAnnotationChecker]: L633-3 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L641-2 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L641-2 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L637 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L637 has no Hoare annotation [2018-11-14 18:18:14,675 WARN L170 areAnnotationChecker]: L641 has no Hoare annotation [2018-11-14 18:18:14,676 WARN L170 areAnnotationChecker]: L641 has no Hoare annotation [2018-11-14 18:18:14,678 WARN L170 areAnnotationChecker]: L641-3 has no Hoare annotation [2018-11-14 18:18:14,678 WARN L170 areAnnotationChecker]: L637-1 has no Hoare annotation [2018-11-14 18:18:14,678 WARN L170 areAnnotationChecker]: L637-1 has no Hoare annotation [2018-11-14 18:18:14,678 WARN L170 areAnnotationChecker]: L637-3 has no Hoare annotation [2018-11-14 18:18:14,678 WARN L170 areAnnotationChecker]: L645 has no Hoare annotation [2018-11-14 18:18:14,679 WARN L170 areAnnotationChecker]: L645 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L653-4 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L653-4 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L645-1 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L645-1 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L645-3 has no Hoare annotation [2018-11-14 18:18:14,680 WARN L170 areAnnotationChecker]: L653-1 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L657-3 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L657-3 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L653-2 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L653-2 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L657 has no Hoare annotation [2018-11-14 18:18:14,681 WARN L170 areAnnotationChecker]: L657-4 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L657-1 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L657-1 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L661 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L661 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L662 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L662 has no Hoare annotation [2018-11-14 18:18:14,682 WARN L170 areAnnotationChecker]: L661-2 has no Hoare annotation [2018-11-14 18:18:14,686 WARN L170 areAnnotationChecker]: L664-4 has no Hoare annotation [2018-11-14 18:18:14,686 WARN L170 areAnnotationChecker]: L664-4 has no Hoare annotation [2018-11-14 18:18:14,686 WARN L170 areAnnotationChecker]: L664-1 has no Hoare annotation [2018-11-14 18:18:14,686 WARN L170 areAnnotationChecker]: L664-5 has no Hoare annotation [2018-11-14 18:18:14,686 WARN L170 areAnnotationChecker]: L664-2 has no Hoare annotation [2018-11-14 18:18:14,687 WARN L170 areAnnotationChecker]: L664-2 has no Hoare annotation [2018-11-14 18:18:14,687 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 18:18:14,687 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 18:18:14,687 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 18:18:14,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 06:18:14 BoogieIcfgContainer [2018-11-14 18:18:14,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 18:18:14,697 INFO L168 Benchmark]: Toolchain (without parser) took 4013.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -630.8 MB). Peak memory consumption was 100.0 MB. Max. memory is 7.1 GB. [2018-11-14 18:18:14,699 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 18:18:14,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2018-11-14 18:18:14,701 INFO L168 Benchmark]: Boogie Preprocessor took 135.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-11-14 18:18:14,702 INFO L168 Benchmark]: RCFGBuilder took 1151.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2018-11-14 18:18:14,703 INFO L168 Benchmark]: TraceAbstraction took 1889.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2018-11-14 18:18:14,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1151.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1889.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 662]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] int i = 0; [L628] int y = 0; [L629] EXPR, FCALL malloc(sizeof(struct node)) [L629] List a = (List) malloc(sizeof(struct node)); VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, y=0] [L630] COND FALSE !(a == 0) VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, y=0] [L631] List t; [L632] List p = a; VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, y=0] [L633] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L641] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L649] FCALL p->h = 3 [L650] i = 0 [L651] y = 0 [L652] p = a VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, y=0] [L653] EXPR, FCALL p->h VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, p->h=3, y=0] [L653] COND FALSE !(p->h == 1) [L657] EXPR, FCALL p->h VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, p->h=3, y=0] [L657] COND FALSE !(p->h == 2) [L661] EXPR, FCALL p->h VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, p->h=3, y=0] [L661] COND TRUE p->h != 3 || (i + y) < 20 [L662] __VERIFIER_error() VAL [a={1:0}, i=0, malloc(sizeof(struct node))={1:0}, p={1:0}, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...