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_Array.epf -i ../../../trunk/examples/svcomp/memsafety/test-0235_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 02:00:09,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 02:00:09,624 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 02:00:09,636 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 02:00:09,636 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 02:00:09,637 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 02:00:09,638 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 02:00:09,639 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 02:00:09,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 02:00:09,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 02:00:09,642 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 02:00:09,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 02:00:09,643 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 02:00:09,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 02:00:09,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 02:00:09,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 02:00:09,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 02:00:09,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 02:00:09,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 02:00:09,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 02:00:09,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 02:00:09,657 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 02:00:09,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 02:00:09,658 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_Array.epf [2018-02-04 02:00:09,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 02:00:09,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 02:00:09,668 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 02:00:09,668 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 02:00:09,668 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 02:00:09,668 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 02:00:09,668 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 02:00:09,669 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 02:00:09,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 02:00:09,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 02:00:09,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 02:00:09,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-04 02:00:09,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 02:00:09,708 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 02:00:09,711 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 02:00:09,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 02:00:09,713 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 02:00:09,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0235_false-valid-deref.i [2018-02-04 02:00:09,850 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 02:00:09,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 02:00:09,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 02:00:09,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 02:00:09,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 02:00:09,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 02:00:09" (1/1) ... [2018-02-04 02:00:09,861 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 02:00:09, skipping insertion in model container [2018-02-04 02:00:09,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 02:00:09" (1/1) ... [2018-02-04 02:00:09,875 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 02:00:09,908 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 02:00:10,012 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 02:00:10,029 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 02:00:10,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10 WrapperNode [2018-02-04 02:00:10,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 02:00:10,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 02:00:10,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 02:00:10,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 02:00:10,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (1/1) ... [2018-02-04 02:00:10,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 02:00:10,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 02:00:10,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 02:00:10,080 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 02:00:10,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (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 02:00:10,117 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 02:00:10,117 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure calloc_model [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_insert [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_insert [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_insert [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_insert [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_insert [2018-02-04 02:00:10,118 INFO L136 BoogieDeclarations]: Found implementation of procedure l4_destroy [2018-02-04 02:00:10,119 INFO L136 BoogieDeclarations]: Found implementation of procedure l3_destroy [2018-02-04 02:00:10,119 INFO L136 BoogieDeclarations]: Found implementation of procedure l2_destroy [2018-02-04 02:00:10,119 INFO L136 BoogieDeclarations]: Found implementation of procedure l1_destroy [2018-02-04 02:00:10,119 INFO L136 BoogieDeclarations]: Found implementation of procedure l0_destroy [2018-02-04 02:00:10,119 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 02:00:10,119 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 02:00:10,119 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 02:00:10,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-02-04 02:00:10,120 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 02:00:10,120 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure calloc_model [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure l4_insert [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure l3_insert [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure l2_insert [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure l1_insert [2018-02-04 02:00:10,121 INFO L128 BoogieDeclarations]: Found specification of procedure l0_insert [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure l4_destroy [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure l3_destroy [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure l2_destroy [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure l1_destroy [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure l0_destroy [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 02:00:10,122 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 02:00:10,123 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 02:00:10,465 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-02-04 02:00:10,605 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 02:00:10,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 02:00:10 BoogieIcfgContainer [2018-02-04 02:00:10,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 02:00:10,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 02:00:10,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 02:00:10,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 02:00:10,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 02:00:09" (1/3) ... [2018-02-04 02:00:10,609 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 02:00:10, skipping insertion in model container [2018-02-04 02:00:10,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:00:10" (2/3) ... [2018-02-04 02:00:10,609 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 02:00:10, skipping insertion in model container [2018-02-04 02:00:10,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 02:00:10" (3/3) ... [2018-02-04 02:00:10,610 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0235_false-valid-deref.i [2018-02-04 02:00:10,616 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 02:00:10,621 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 85 error locations. [2018-02-04 02:00:10,644 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 02:00:10,644 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 02:00:10,644 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-04 02:00:10,644 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 02:00:10,644 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 02:00:10,644 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 02:00:10,644 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 02:00:10,644 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 02:00:10,645 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 02:00:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2018-02-04 02:00:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 02:00:10,664 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:00:10,665 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 02:00:10,665 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 02:00:10,668 INFO L82 PathProgramCache]: Analyzing trace with hash 15319548, now seen corresponding path program 1 times [2018-02-04 02:00:10,701 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:00:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:00:10,730 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:00:10,762 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 02:00:10,764 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:00:10,764 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 02:00:10,764 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:00:10,765 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 02:00:10,765 INFO L182 omatonBuilderFactory]: Interpolants [278#true, 279#false, 280#(= 1 (select |#valid| |~#list~0.base|))] [2018-02-04 02:00:10,766 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 02:00:10,766 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 02:00:10,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 02:00:10,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 02:00:10,839 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 3 states. [2018-02-04 02:00:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:00:11,080 INFO L93 Difference]: Finished difference Result 394 states and 450 transitions. [2018-02-04 02:00:11,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 02:00:11,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 02:00:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:00:11,095 INFO L225 Difference]: With dead ends: 394 [2018-02-04 02:00:11,096 INFO L226 Difference]: Without dead ends: 391 [2018-02-04 02:00:11,097 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 02:00:11,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-02-04 02:00:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 345. [2018-02-04 02:00:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-02-04 02:00:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 426 transitions. [2018-02-04 02:00:11,159 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 426 transitions. Word has length 4 [2018-02-04 02:00:11,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:00:11,159 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 426 transitions. [2018-02-04 02:00:11,159 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 02:00:11,159 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 426 transitions. [2018-02-04 02:00:11,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 02:00:11,160 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:00:11,160 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 02:00:11,160 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 02:00:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash 15319549, now seen corresponding path program 1 times [2018-02-04 02:00:11,161 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:00:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:00:11,173 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:00:11,205 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 02:00:11,205 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:00:11,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 02:00:11,205 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:00:11,206 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 02:00:11,206 INFO L182 omatonBuilderFactory]: Interpolants [1020#true, 1021#false, 1022#(and (= (select |#length| |~#list~0.base|) 4) (= |~#list~0.offset| 0))] [2018-02-04 02:00:11,206 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 02:00:11,208 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 02:00:11,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 02:00:11,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 02:00:11,208 INFO L87 Difference]: Start difference. First operand 345 states and 426 transitions. Second operand 3 states. [2018-02-04 02:00:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:00:11,320 INFO L93 Difference]: Finished difference Result 352 states and 436 transitions. [2018-02-04 02:00:11,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 02:00:11,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 02:00:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:00:11,323 INFO L225 Difference]: With dead ends: 352 [2018-02-04 02:00:11,323 INFO L226 Difference]: Without dead ends: 352 [2018-02-04 02:00:11,324 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 02:00:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-02-04 02:00:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 344. [2018-02-04 02:00:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-02-04 02:00:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 425 transitions. [2018-02-04 02:00:11,340 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 425 transitions. Word has length 4 [2018-02-04 02:00:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:00:11,341 INFO L432 AbstractCegarLoop]: Abstraction has 344 states and 425 transitions. [2018-02-04 02:00:11,341 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 02:00:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 425 transitions. [2018-02-04 02:00:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 02:00:11,341 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:00:11,342 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 02:00:11,342 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 02:00:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash 116258063, now seen corresponding path program 1 times [2018-02-04 02:00:11,343 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:00:11,358 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-02-04 02:00:11,358 INFO L293 seRefinementStrategy]: Strategy FixedTraceAbstractionRefinementStrategy was unsuccessful and could not determine trace feasibility. [2018-02-04 02:00:11,358 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 02:00:11,365 WARN L188 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-02-04 02:00:11,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 02:00:11 BoogieIcfgContainer [2018-02-04 02:00:11,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 02:00:11,366 INFO L168 Benchmark]: Toolchain (without parser) took 1515.71 ms. Allocated memory was 403.7 MB in the beginning and 617.6 MB in the end (delta: 213.9 MB). Free memory was 360.6 MB in the beginning and 516.2 MB in the end (delta: -155.6 MB). Peak memory consumption was 58.3 MB. Max. memory is 5.3 GB. [2018-02-04 02:00:11,367 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 02:00:11,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.20 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 347.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-02-04 02:00:11,368 INFO L168 Benchmark]: Boogie Preprocessor took 43.15 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 345.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 02:00:11,369 INFO L168 Benchmark]: RCFGBuilder took 525.47 ms. Allocated memory is still 403.7 MB. Free memory was 345.9 MB in the beginning and 284.9 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 5.3 GB. [2018-02-04 02:00:11,369 INFO L168 Benchmark]: TraceAbstraction took 759.68 ms. Allocated memory was 403.7 MB in the beginning and 617.6 MB in the end (delta: 213.9 MB). Free memory was 284.9 MB in the beginning and 516.2 MB in the end (delta: -231.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 02:00:11,371 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 184.20 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 347.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.15 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 345.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 525.47 ms. Allocated memory is still 403.7 MB. Free memory was 345.9 MB in the beginning and 284.9 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 759.68 ms. Allocated memory was 403.7 MB in the beginning and 617.6 MB in the end (delta: 213.9 MB). Free memory was 284.9 MB in the beginning and 516.2 MB in the end (delta: -231.2 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_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_02-00-11-379.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_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_02-00-11-379.csv Received shutdown request...