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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 17:05:33,126 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 17:05:33,128 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 17:05:33,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 17:05:33,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 17:05:33,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 17:05:33,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 17:05:33,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 17:05:33,147 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 17:05:33,147 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 17:05:33,148 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 17:05:33,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 17:05:33,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 17:05:33,150 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 17:05:33,151 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 17:05:33,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 17:05:33,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 17:05:33,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 17:05:33,156 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 17:05:33,157 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 17:05:33,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 17:05:33,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 17:05:33,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 17:05:33,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 17:05:33,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 17:05:33,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 17:05:33,162 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 17:05:33,163 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 17:05:33,163 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 17:05:33,163 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 17:05:33,164 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 17:05:33,164 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-10 17:05:33,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 17:05:33,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 17:05:33,185 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 17:05:33,185 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 17:05:33,185 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 17:05:33,185 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 17:05:33,185 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 17:05:33,186 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 17:05:33,187 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 17:05:33,187 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 17:05:33,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 17:05:33,188 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-10 17:05:33,188 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-10 17:05:33,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:33,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 17:05:33,224 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 17:05:33,227 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 17:05:33,228 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 17:05:33,229 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 17:05:33,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:33,596 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8bb5ddde3 [2018-04-10 17:05:33,674 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 17:05:33,674 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 17:05:33,675 INFO L168 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:33,676 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 17:05:33,676 INFO L215 ultiparseSymbolTable]: [2018-04-10 17:05:33,676 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 17:05:33,676 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:33,676 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:33,676 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:33,676 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 17:05:33,676 INFO L233 ultiparseSymbolTable]: [2018-04-10 17:05:33,689 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8bb5ddde3 [2018-04-10 17:05:33,692 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 17:05:33,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 17:05:33,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 17:05:33,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 17:05:33,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 17:05:33,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b22f1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33, skipping insertion in model container [2018-04-10 17:05:33,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,715 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:05:33,723 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:05:33,807 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:05:33,825 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:05:33,830 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-04-10 17:05:33,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33 WrapperNode [2018-04-10 17:05:33,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 17:05:33,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 17:05:33,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 17:05:33,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 17:05:33,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (1/1) ... [2018-04-10 17:05:33,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 17:05:33,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 17:05:33,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 17:05:33,865 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 17:05:33,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (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 [2018-04-10 17:05:33,903 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 17:05:33,903 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 17:05:33,903 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 17:05:33,904 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 17:05:33,904 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 17:05:33,904 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 17:05:33,905 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 17:05:33,905 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 17:05:33,905 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 17:05:33,905 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 17:05:34,162 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 17:05:34,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:05:34 BoogieIcfgContainer [2018-04-10 17:05:34,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 17:05:34,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 17:05:34,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 17:05:34,165 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 17:05:34,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 05:05:33" (1/3) ... [2018-04-10 17:05:34,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743f11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:05:34, skipping insertion in model container [2018-04-10 17:05:34,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:33" (2/3) ... [2018-04-10 17:05:34,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743f11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:05:34, skipping insertion in model container [2018-04-10 17:05:34,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:05:34" (3/3) ... [2018-04-10 17:05:34,169 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 17:05:34,176 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 17:05:34,180 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-04-10 17:05:34,204 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 17:05:34,204 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 17:05:34,204 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 17:05:34,205 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-10 17:05:34,205 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 17:05:34,205 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 17:05:34,205 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 17:05:34,205 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 17:05:34,205 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 17:05:34,206 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 17:05:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-04-10 17:05:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 17:05:34,228 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:34,229 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:34,229 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:05:34,232 INFO L82 PathProgramCache]: Analyzing trace with hash -2016169232, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:34,241 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,328 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:05:34,329 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 17:05:34,329 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:05:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,330 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false, 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:05:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 17:05:34,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 17:05:34,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 17:05:34,344 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2018-04-10 17:05:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:05:34,479 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-10 17:05:34,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 17:05:34,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-04-10 17:05:34,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:05:34,489 INFO L225 Difference]: With dead ends: 68 [2018-04-10 17:05:34,489 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 17:05:34,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 17:05:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 17:05:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-10 17:05:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-10 17:05:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-04-10 17:05:34,519 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-04-10 17:05:34,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:05:34,519 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-04-10 17:05:34,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 17:05:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-04-10 17:05:34,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-10 17:05:34,520 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:34,520 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:34,520 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:05:34,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1480772723, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:34,526 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,567 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:05:34,567 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 17:05:34,567 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:05:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,568 INFO L182 omatonBuilderFactory]: Interpolants [210#true, 211#false, 215#(< main_~i~2 100), 216#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:05:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 17:05:34,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 17:05:34,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 17:05:34,570 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 4 states. [2018-04-10 17:05:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:05:34,711 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-04-10 17:05:34,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 17:05:34,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-10 17:05:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:05:34,713 INFO L225 Difference]: With dead ends: 64 [2018-04-10 17:05:34,713 INFO L226 Difference]: Without dead ends: 64 [2018-04-10 17:05:34,714 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 17:05:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-10 17:05:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-10 17:05:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-10 17:05:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-10 17:05:34,722 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-04-10 17:05:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:05:34,723 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-10 17:05:34,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 17:05:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-10 17:05:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 17:05:34,724 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:34,724 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:34,724 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:05:34,724 INFO L82 PathProgramCache]: Analyzing trace with hash -759595471, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:34,728 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:05:34,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-10 17:05:34,829 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:05:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,829 INFO L182 omatonBuilderFactory]: Interpolants [352#(= 0 __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo_~size), 353#(<= __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo_~size __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo_~i~1), 354#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 345#true, 346#false, 350#(= 0 main_~i~2), 351#(= 0 |__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo_#in~size|)] [2018-04-10 17:05:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:34,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 17:05:34,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 17:05:34,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-10 17:05:34,831 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 7 states. [2018-04-10 17:05:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:05:35,047 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-10 17:05:35,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 17:05:35,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-04-10 17:05:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:05:35,050 INFO L225 Difference]: With dead ends: 85 [2018-04-10 17:05:35,050 INFO L226 Difference]: Without dead ends: 85 [2018-04-10 17:05:35,051 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-04-10 17:05:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-10 17:05:35,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-04-10 17:05:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-10 17:05:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-04-10 17:05:35,059 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-04-10 17:05:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:05:35,060 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-04-10 17:05:35,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 17:05:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-04-10 17:05:35,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 17:05:35,060 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:35,060 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:35,061 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:05:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708377, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:35,064 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:35,082 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-04-10 17:05:35,086 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:05:35,086 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:05:35,087 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:05:35,087 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:05:35,118 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-04-10 17:05:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:35,183 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:05:35,183 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-10 17:05:35,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:05:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:35,184 INFO L182 omatonBuilderFactory]: Interpolants [528#false, 532#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 533#(= 1 (select |#valid| |__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo_~#a~0.base|)), 534#(= 1 (select |#valid| |__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar_#in~b.base|)), 535#(= 1 (select |#valid| __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar_~b.base)), 536#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 527#true] [2018-04-10 17:05:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:05:35,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 17:05:35,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 17:05:35,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2018-04-10 17:05:35,184 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 7 states. [2018-04-10 17:05:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:05:35,353 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-04-10 17:05:35,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 17:05:35,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-04-10 17:05:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:05:35,355 INFO L225 Difference]: With dead ends: 77 [2018-04-10 17:05:35,355 INFO L226 Difference]: Without dead ends: 77 [2018-04-10 17:05:35,355 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=4, NotChecked=14, Total=90 [2018-04-10 17:05:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-10 17:05:35,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-10 17:05:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-10 17:05:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-04-10 17:05:35,359 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-04-10 17:05:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:05:35,360 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-04-10 17:05:35,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 17:05:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-04-10 17:05:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 17:05:35,360 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:35,360 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:35,360 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:05:35,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708376, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:35,364 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 17:05:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 17:05:35,421 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 17:05:35,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 05:05:35 BoogieIcfgContainer [2018-04-10 17:05:35,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 17:05:35,442 INFO L168 Benchmark]: Toolchain (without parser) took 1749.83 ms. Allocated memory was 393.7 MB in the beginning and 590.9 MB in the end (delta: 197.1 MB). Free memory was 331.6 MB in the beginning and 394.0 MB in the end (delta: -62.4 MB). Peak memory consumption was 134.7 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:35,444 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 393.7 MB. Free memory is still 352.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 17:05:35,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 393.7 MB. Free memory was 331.6 MB in the beginning and 321.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:35,444 INFO L168 Benchmark]: Boogie Preprocessor took 25.56 ms. Allocated memory is still 393.7 MB. Free memory is still 321.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 17:05:35,445 INFO L168 Benchmark]: RCFGBuilder took 298.29 ms. Allocated memory was 393.7 MB in the beginning and 590.9 MB in the end (delta: 197.1 MB). Free memory was 321.0 MB in the beginning and 546.2 MB in the end (delta: -225.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:35,445 INFO L168 Benchmark]: TraceAbstraction took 1278.28 ms. Allocated memory is still 590.9 MB. Free memory was 546.2 MB in the beginning and 394.0 MB in the end (delta: 152.2 MB). Peak memory consumption was 152.2 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:35,448 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 393.7 MB. Free memory is still 352.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 393.7 MB. Free memory was 331.6 MB in the beginning and 321.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.56 ms. Allocated memory is still 393.7 MB. Free memory is still 321.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 298.29 ms. Allocated memory was 393.7 MB in the beginning and 590.9 MB in the end (delta: 197.1 MB). Free memory was 321.0 MB in the beginning and 546.2 MB in the end (delta: -225.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1278.28 ms. Allocated memory is still 590.9 MB. Free memory was 546.2 MB in the beginning and 394.0 MB in the end (delta: 152.2 MB). Peak memory consumption was 152.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L32] FCALL int i, b[100]; VAL [b={5:0}] [L33] i = 0 VAL [b={5:0}, i=0] [L33] COND TRUE i < 100 VAL [b={5:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={5:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=0, a={6:0}, b={5:0}, b={5:0}, n=0, size=0] [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={6:0}, b={5:0}, b={5:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={6:0}, b={5:0}, b={5:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={6:0}] [L12] int res = 0, i; [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L14] FCALL b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 153 SDslu, 262 SDs, 0 SdLazy, 434 SolverSat, 25 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 2 QuantifiedInterpolants, 2946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_17-05-35-456.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_17-05-35-456.csv Received shutdown request...