java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0235_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 17:45:53,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 17:45:53,766 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 17:45:53,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 17:45:53,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 17:45:53,778 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 17:45:53,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 17:45:53,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 17:45:53,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 17:45:53,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 17:45:53,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 17:45:53,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 17:45:53,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 17:45:53,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 17:45:53,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 17:45:53,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 17:45:53,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 17:45:53,790 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 17:45:53,791 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 17:45:53,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 17:45:53,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 17:45:53,794 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 17:45:53,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 17:45:53,795 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 17:45:53,795 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 17:45:53,796 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 17:45:53,796 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 17:45:53,797 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 17:45:53,797 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 17:45:53,797 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 17:45:53,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 17:45:53,798 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 17:45:53,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 17:45:53,808 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 17:45:53,808 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 17:45:53,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 17:45:53,809 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 17:45:53,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 17:45:53,810 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 17:45:53,810 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 17:45:53,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 17:45:53,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 17:45:53,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 17:45:53,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 17:45:53,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 17:45:53,811 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 17:45:53,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 17:45:53,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 17:45:53,811 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 17:45:53,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 17:45:53,812 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 17:45:53,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 17:45:53,852 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 17:45:53,855 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 17:45:53,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 17:45:53,856 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 17:45:53,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0235_false-valid-deref.i [2018-02-04 17:45:54,002 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 17:45:54,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 17:45:54,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 17:45:54,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 17:45:54,010 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 17:45:54,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:45:53" (1/1) ... [2018-02-04 17:45:54,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ec44b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54, skipping insertion in model container [2018-02-04 17:45:54,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 05:45:53" (1/1) ... [2018-02-04 17:45:54,027 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:45:54,060 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 17:45:54,155 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:45:54,177 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 17:45:54,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54 WrapperNode [2018-02-04 17:45:54,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 17:45:54,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 17:45:54,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 17:45:54,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 17:45:54,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... [2018-02-04 17:45:54,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 17:45:54,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 17:45:54,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 17:45:54,218 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 17:45:54,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 17:45:54,254 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 17:45:54,254 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure calloc_model [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_insert [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_insert [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_insert [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_insert [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_insert [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_destroy [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_destroy [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_destroy [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_destroy [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_destroy [2018-02-04 17:45:54,255 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-02-04 17:45:54,256 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure calloc_model [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2018-02-04 17:45:54,256 INFO L128 BoogieDeclarations]: Found specification of procedure l4_insert [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l3_insert [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l2_insert [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l1_insert [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l0_insert [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l4_destroy [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l3_destroy [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l2_destroy [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l1_destroy [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure l0_destroy [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 17:45:54,257 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 17:45:54,607 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-02-04 17:45:54,769 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 17:45:54,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:45:54 BoogieIcfgContainer [2018-02-04 17:45:54,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 17:45:54,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 17:45:54,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 17:45:54,772 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 17:45:54,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 05:45:53" (1/3) ... [2018-02-04 17:45:54,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236f35ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:45:54, skipping insertion in model container [2018-02-04 17:45:54,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 05:45:54" (2/3) ... [2018-02-04 17:45:54,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236f35ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 05:45:54, skipping insertion in model container [2018-02-04 17:45:54,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 05:45:54" (3/3) ... [2018-02-04 17:45:54,774 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0235_false-valid-deref.i [2018-02-04 17:45:54,780 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 17:45:54,785 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 85 error locations. [2018-02-04 17:45:54,807 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 17:45:54,808 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 17:45:54,808 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 17:45:54,808 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 17:45:54,808 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 17:45:54,808 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 17:45:54,808 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 17:45:54,808 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 17:45:54,809 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 17:45:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2018-02-04 17:45:54,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 17:45:54,825 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:45:54,825 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 17:45:54,826 INFO L371 AbstractCegarLoop]: === Iteration 1 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-02-04 17:45:54,828 INFO L82 PathProgramCache]: Analyzing trace with hash 15319548, now seen corresponding path program 1 times [2018-02-04 17:45:54,829 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:45:54,830 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:45:54,859 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:54,859 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:45:54,859 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:45:54,888 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:45:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:45:54,922 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:45:54,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 17:45:54,923 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 17:45:55,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 17:45:55,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:45:55,021 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 3 states. [2018-02-04 17:45:55,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:45:55,249 INFO L93 Difference]: Finished difference Result 394 states and 450 transitions. [2018-02-04 17:45:55,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 17:45:55,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 17:45:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:45:55,263 INFO L225 Difference]: With dead ends: 394 [2018-02-04 17:45:55,263 INFO L226 Difference]: Without dead ends: 391 [2018-02-04 17:45:55,265 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:45:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-02-04 17:45:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 345. [2018-02-04 17:45:55,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-02-04 17:45:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 426 transitions. [2018-02-04 17:45:55,317 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 426 transitions. Word has length 4 [2018-02-04 17:45:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:45:55,318 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 426 transitions. [2018-02-04 17:45:55,318 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 17:45:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 426 transitions. [2018-02-04 17:45:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 17:45:55,318 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:45:55,319 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 17:45:55,319 INFO L371 AbstractCegarLoop]: === Iteration 2 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-02-04 17:45:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash 15319549, now seen corresponding path program 1 times [2018-02-04 17:45:55,319 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:45:55,319 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:45:55,320 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:55,320 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:45:55,320 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 17:45:55,332 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 17:45:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 17:45:55,363 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 17:45:55,363 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 17:45:55,365 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 17:45:55,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 17:45:55,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:45:55,365 INFO L87 Difference]: Start difference. First operand 345 states and 426 transitions. Second operand 3 states. [2018-02-04 17:45:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 17:45:55,484 INFO L93 Difference]: Finished difference Result 352 states and 436 transitions. [2018-02-04 17:45:55,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 17:45:55,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 17:45:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 17:45:55,486 INFO L225 Difference]: With dead ends: 352 [2018-02-04 17:45:55,487 INFO L226 Difference]: Without dead ends: 352 [2018-02-04 17:45:55,487 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 17:45:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-02-04 17:45:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 344. [2018-02-04 17:45:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-02-04 17:45:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 425 transitions. [2018-02-04 17:45:55,504 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 425 transitions. Word has length 4 [2018-02-04 17:45:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 17:45:55,504 INFO L432 AbstractCegarLoop]: Abstraction has 344 states and 425 transitions. [2018-02-04 17:45:55,504 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 17:45:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 425 transitions. [2018-02-04 17:45:55,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 17:45:55,505 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 17:45:55,505 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 17:45:55,505 INFO L371 AbstractCegarLoop]: === Iteration 3 === [l3_destroyErr0RequiresViolation, l3_destroyErr3RequiresViolation, l3_destroyErr1RequiresViolation, l3_destroyErr2RequiresViolation, l3_destroyErr4RequiresViolation, l3_destroyErr5RequiresViolation, l0_insertErr3RequiresViolation, l0_insertErr1RequiresViolation, l0_insertErr5RequiresViolation, l0_insertErr2RequiresViolation, l0_insertErr4RequiresViolation, l0_insertErr0RequiresViolation, l4_destroyErr4RequiresViolation, l4_destroyErr6RequiresViolation, l4_destroyErr2RequiresViolation, l4_destroyErr3RequiresViolation, l4_destroyErr1RequiresViolation, l4_destroyErr7RequiresViolation, l4_destroyErr0RequiresViolation, l4_destroyErr5RequiresViolation, l2_insertErr3RequiresViolation, l2_insertErr5RequiresViolation, l2_insertErr0RequiresViolation, l2_insertErr1RequiresViolation, l2_insertErr4RequiresViolation, l2_insertErr2RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, l3_insertErr4RequiresViolation, l3_insertErr0RequiresViolation, l3_insertErr5RequiresViolation, l3_insertErr3RequiresViolation, l3_insertErr1RequiresViolation, l3_insertErr2RequiresViolation, l1_insertErr4RequiresViolation, l1_insertErr0RequiresViolation, l1_insertErr2RequiresViolation, l1_insertErr3RequiresViolation, l1_insertErr1RequiresViolation, l1_insertErr5RequiresViolation, l0_destroyErr5RequiresViolation, l0_destroyErr3RequiresViolation, l0_destroyErr1RequiresViolation, l0_destroyErr0RequiresViolation, l0_destroyErr4RequiresViolation, l0_destroyErr2RequiresViolation, calloc_modelErr0RequiresViolation, calloc_modelErr1RequiresViolation, l4_insertErr5RequiresViolation, l4_insertErr3RequiresViolation, l4_insertErr4RequiresViolation, l4_insertErr6RequiresViolation, l4_insertErr2RequiresViolation, l4_insertErr0RequiresViolation, l4_insertErr1RequiresViolation, l4_insertErr7RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, l1_destroyErr2RequiresViolation, l1_destroyErr4RequiresViolation, l1_destroyErr0RequiresViolation, l1_destroyErr1RequiresViolation, l1_destroyErr5RequiresViolation, l1_destroyErr3RequiresViolation, l2_destroyErr1RequiresViolation, l2_destroyErr0RequiresViolation, l2_destroyErr2RequiresViolation, l2_destroyErr4RequiresViolation, l2_destroyErr5RequiresViolation, l2_destroyErr3RequiresViolation]=== [2018-02-04 17:45:55,506 INFO L82 PathProgramCache]: Analyzing trace with hash 116258063, now seen corresponding path program 1 times [2018-02-04 17:45:55,506 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 17:45:55,506 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 17:45:55,507 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:55,507 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:45:55,507 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 17:45:55,522 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-02-04 17:45:55,522 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-02-04 17:45:55,522 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 17:45:55,523 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 17:45:55,547 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-02-04 17:45:55,547 INFO L293 seRefinementStrategy]: Strategy SmtInterpolRefinementStrategy was unsuccessful and could not determine trace feasibility. [2018-02-04 17:45:55,547 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 17:45:55,558 WARN L188 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-02-04 17:45:55,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 05:45:55 BoogieIcfgContainer [2018-02-04 17:45:55,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 17:45:55,559 INFO L168 Benchmark]: Toolchain (without parser) took 1556.50 ms. Allocated memory was 403.2 MB in the beginning and 621.3 MB in the end (delta: 218.1 MB). Free memory was 360.1 MB in the beginning and 518.0 MB in the end (delta: -158.0 MB). Peak memory consumption was 60.1 MB. Max. memory is 5.3 GB. [2018-02-04 17:45:55,561 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:45:55,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.24 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 346.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-02-04 17:45:55,561 INFO L168 Benchmark]: Boogie Preprocessor took 31.08 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 345.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 17:45:55,562 INFO L168 Benchmark]: RCFGBuilder took 551.60 ms. Allocated memory is still 403.2 MB. Free memory was 345.4 MB in the beginning and 284.4 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 5.3 GB. [2018-02-04 17:45:55,562 INFO L168 Benchmark]: TraceAbstraction took 788.39 ms. Allocated memory was 403.2 MB in the beginning and 621.3 MB in the end (delta: 218.1 MB). Free memory was 284.4 MB in the beginning and 518.0 MB in the end (delta: -233.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 17:45:55,564 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 182.24 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 346.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.08 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 345.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 551.60 ms. Allocated memory is still 403.2 MB. Free memory was 345.4 MB in the beginning and 284.4 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 788.39 ms. Allocated memory was 403.2 MB in the beginning and 621.3 MB in the end (delta: 218.1 MB). Free memory was 284.4 MB in the beginning and 518.0 MB in the end (delta: -233.6 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L877] FCALL static struct L0 *list; [L879] CALL l0_insert(&list) [L808] CALL zalloc_or_die(sizeof *item) [L767] CALL calloc_model(1U, size) [L741] EXPR, FCALL malloc(nmemb * size) [L741] void *ptr = malloc(nmemb * size); [L742] FCALL memset(ptr, 0, nmemb * size) - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 275 locations, 85 error locations. UNKNOWN Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 522 SDtfs, 297 SDslu, 308 SDs, 0 SdLazy, 228 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=1, 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, 2 MinimizatonAttempts, 54 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0235_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_17-45-55-572.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0235_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_17-45-55-572.csv Received shutdown request...