java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:14:07,714 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:14:07,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:14:07,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:14:07,727 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:14:07,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:14:07,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:14:07,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:14:07,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:14:07,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:14:07,734 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:14:07,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:14:07,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:14:07,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:14:07,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:14:07,739 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:14:07,740 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:14:07,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:14:07,743 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:14:07,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:14:07,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:14:07,746 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:14:07,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:14:07,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:14:07,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:14:07,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:14:07,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:14:07,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:14:07,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:14:07,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:14:07,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:14:07,751 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-10 16:14:07,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:14:07,769 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:14:07,771 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:14:07,771 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:14:07,771 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:14:07,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:14:07,771 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:14:07,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:14:07,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:14:07,773 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:14:07,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:14:07,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:14:07,773 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:14:07,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:14:07,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:14:07,774 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 16:14:07,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 16:14:07,774 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-04-10 16:14:07,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:14:07,811 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:14:07,814 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:14:07,816 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:14:07,816 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:14:07,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 16:14:08,095 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd55f10314 [2018-04-10 16:14:08,192 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:14:08,192 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:14:08,193 INFO L168 CDTParser]: Scanning ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 16:14:08,193 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:14:08,193 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:14:08,193 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:14:08,194 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 16:14:08,194 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 16:14:08,194 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:14:08,194 INFO L233 ultiparseSymbolTable]: [2018-04-10 16:14:08,205 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd55f10314 [2018-04-10 16:14:08,208 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:14:08,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:14:08,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:14:08,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:14:08,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:14:08,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5c6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08, skipping insertion in model container [2018-04-10 16:14:08,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,234 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:14:08,245 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:14:08,352 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:14:08,369 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:14:08,373 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 16:14:08,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08 WrapperNode [2018-04-10 16:14:08,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:14:08,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:14:08,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:14:08,378 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:14:08,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (1/1) ... [2018-04-10 16:14:08,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:14:08,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:14:08,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:14:08,401 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:14:08,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (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 16:14:08,437 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:14:08,437 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:14:08,437 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 16:14:08,437 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 16:14:08,438 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 16:14:08,612 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:14:08,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:14:08 BoogieIcfgContainer [2018-04-10 16:14:08,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:14:08,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:14:08,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:14:08,614 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:14:08,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:14:08" (1/3) ... [2018-04-10 16:14:08,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78882b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:14:08, skipping insertion in model container [2018-04-10 16:14:08,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:14:08" (2/3) ... [2018-04-10 16:14:08,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78882b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:14:08, skipping insertion in model container [2018-04-10 16:14:08,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:14:08" (3/3) ... [2018-04-10 16:14:08,616 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 16:14:08,622 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:14:08,629 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-10 16:14:08,653 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:14:08,654 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:14:08,654 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:14:08,654 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 16:14:08,654 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 16:14:08,654 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:14:08,654 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:14:08,654 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:14:08,655 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:14:08,655 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:14:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-10 16:14:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-10 16:14:08,674 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:08,675 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:08,675 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:08,679 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times [2018-04-10 16:14:08,681 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:08,681 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:08,709 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:08,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:08,710 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:08,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:08,786 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 16:14:08,788 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:14:08,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 16:14:08,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 16:14:08,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 16:14:08,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 16:14:08,804 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-10 16:14:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:08,863 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-10 16:14:08,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 16:14:08,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-10 16:14:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:08,870 INFO L225 Difference]: With dead ends: 63 [2018-04-10 16:14:08,870 INFO L226 Difference]: Without dead ends: 59 [2018-04-10 16:14:08,871 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 16:14:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-10 16:14:08,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-10 16:14:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-10 16:14:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-10 16:14:08,895 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-10 16:14:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:08,896 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-10 16:14:08,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 16:14:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-10 16:14:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-10 16:14:08,896 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:08,896 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:08,896 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times [2018-04-10 16:14:08,897 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:08,897 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:08,897 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:08,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:08,898 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:08,912 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:08,978 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 16:14:08,978 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:14:08,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 16:14:08,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 16:14:08,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 16:14:08,980 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:08,980 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 5 states. [2018-04-10 16:14:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,053 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-04-10 16:14:09,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 16:14:09,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-10 16:14:09,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,054 INFO L225 Difference]: With dead ends: 57 [2018-04-10 16:14:09,054 INFO L226 Difference]: Without dead ends: 57 [2018-04-10 16:14:09,055 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-10 16:14:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-10 16:14:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2018-04-10 16:14:09,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-10 16:14:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-04-10 16:14:09,060 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2018-04-10 16:14:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,060 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-04-10 16:14:09,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 16:14:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-04-10 16:14:09,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 16:14:09,061 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,061 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 16:14:09,061 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times [2018-04-10 16:14:09,061 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,061 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,062 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,062 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,073 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,132 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 16:14:09,132 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:14:09,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 16:14:09,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 16:14:09,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 16:14:09,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-10 16:14:09,133 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-04-10 16:14:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,194 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-04-10 16:14:09,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 16:14:09,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-10 16:14:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,195 INFO L225 Difference]: With dead ends: 51 [2018-04-10 16:14:09,196 INFO L226 Difference]: Without dead ends: 51 [2018-04-10 16:14:09,196 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-10 16:14:09,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-10 16:14:09,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-10 16:14:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-10 16:14:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-04-10 16:14:09,200 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 17 [2018-04-10 16:14:09,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,200 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-04-10 16:14:09,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 16:14:09,201 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-04-10 16:14:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 16:14:09,201 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,201 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 16:14:09,201 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash -258746291, now seen corresponding path program 1 times [2018-04-10 16:14:09,202 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,202 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,239 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 16:14:09,239 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:14:09,239 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 16:14:09,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 16:14:09,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 16:14:09,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:09,240 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 5 states. [2018-04-10 16:14:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,273 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-04-10 16:14:09,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 16:14:09,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-10 16:14:09,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,273 INFO L225 Difference]: With dead ends: 50 [2018-04-10 16:14:09,273 INFO L226 Difference]: Without dead ends: 50 [2018-04-10 16:14:09,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-10 16:14:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-10 16:14:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-10 16:14:09,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-10 16:14:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-10 16:14:09,276 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 17 [2018-04-10 16:14:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,276 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-10 16:14:09,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 16:14:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-10 16:14:09,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 16:14:09,277 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,277 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:09,277 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1933852231, now seen corresponding path program 1 times [2018-04-10 16:14:09,277 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,277 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,278 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,278 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,284 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 16:14:09,315 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 16:14:09,316 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-10 16:14:09,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,334 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 16:14:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 16:14:09,355 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 16:14:09,355 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-04-10 16:14:09,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 16:14:09,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 16:14:09,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-10 16:14:09,356 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 9 states. [2018-04-10 16:14:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,440 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-04-10 16:14:09,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 16:14:09,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-04-10 16:14:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,441 INFO L225 Difference]: With dead ends: 60 [2018-04-10 16:14:09,441 INFO L226 Difference]: Without dead ends: 60 [2018-04-10 16:14:09,442 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-04-10 16:14:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-10 16:14:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-10 16:14:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-10 16:14:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-10 16:14:09,444 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 22 [2018-04-10 16:14:09,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,445 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-10 16:14:09,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 16:14:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-10 16:14:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-10 16:14:09,445 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,446 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:09,446 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,446 INFO L82 PathProgramCache]: Analyzing trace with hash 687601263, now seen corresponding path program 1 times [2018-04-10 16:14:09,446 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,446 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,455 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-10 16:14:09,495 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:14:09,495 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 16:14:09,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 16:14:09,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 16:14:09,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:09,496 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-10 16:14:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,524 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-04-10 16:14:09,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 16:14:09,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-04-10 16:14:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,526 INFO L225 Difference]: With dead ends: 70 [2018-04-10 16:14:09,526 INFO L226 Difference]: Without dead ends: 70 [2018-04-10 16:14:09,526 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-10 16:14:09,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2018-04-10 16:14:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-10 16:14:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-04-10 16:14:09,530 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-04-10 16:14:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,530 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-04-10 16:14:09,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 16:14:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-04-10 16:14:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 16:14:09,531 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,532 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:09,532 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1072164206, now seen corresponding path program 1 times [2018-04-10 16:14:09,532 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,532 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,533 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,533 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-10 16:14:09,573 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 16:14:09,573 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-10 16:14:09,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,593 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 16:14:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-10 16:14:09,607 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 16:14:09,608 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-04-10 16:14:09,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 16:14:09,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 16:14:09,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:09,609 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states. [2018-04-10 16:14:09,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:09,652 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2018-04-10 16:14:09,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 16:14:09,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-04-10 16:14:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:09,653 INFO L225 Difference]: With dead ends: 84 [2018-04-10 16:14:09,653 INFO L226 Difference]: Without dead ends: 84 [2018-04-10 16:14:09,653 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:14:09,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-10 16:14:09,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 67. [2018-04-10 16:14:09,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-10 16:14:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-04-10 16:14:09,658 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2018-04-10 16:14:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:09,658 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-04-10 16:14:09,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 16:14:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-04-10 16:14:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-10 16:14:09,661 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:14:09,661 INFO L355 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:14:09,661 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-10 16:14:09,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1102390087, now seen corresponding path program 2 times [2018-04-10 16:14:09,662 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:14:09,662 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:14:09,663 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:14:09,663 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:14:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:14:09,684 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:14:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-04-10 16:14:09,737 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 16:14:09,737 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-10 16:14:09,738 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-10 16:14:09,749 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-10 16:14:09,750 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-10 16:14:09,753 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 16:14:09,785 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:14:09,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-10 16:14:09,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 16:14:09,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 16:14:09,790 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-10 16:14:09,823 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:14:09,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-10 16:14:09,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 16:14:09,825 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 16:14:09,825 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-10 16:14:09,854 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#mask~0.base| Int)) (and (= (store |c_old(#valid)| |main_~#mask~0.base| 0) |c_#valid|) (= (select |c_old(#valid)| |main_~#mask~0.base|) 0))) is different from true [2018-04-10 16:14:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-04-10 16:14:09,869 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-10 16:14:09,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-04-10 16:14:09,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 16:14:09,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 16:14:09,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2018-04-10 16:14:09,870 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 9 states. [2018-04-10 16:14:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:14:10,078 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2018-04-10 16:14:10,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 16:14:10,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2018-04-10 16:14:10,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:14:10,079 INFO L225 Difference]: With dead ends: 97 [2018-04-10 16:14:10,079 INFO L226 Difference]: Without dead ends: 0 [2018-04-10 16:14:10,080 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=175, Unknown=1, NotChecked=28, Total=272 [2018-04-10 16:14:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-10 16:14:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-10 16:14:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-10 16:14:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-10 16:14:10,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2018-04-10 16:14:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:14:10,081 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-10 16:14:10,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 16:14:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-10 16:14:10,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-10 16:14:10,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:14:10 BoogieIcfgContainer [2018-04-10 16:14:10,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:14:10,087 INFO L168 Benchmark]: Toolchain (without parser) took 1878.24 ms. Allocated memory was 402.7 MB in the beginning and 587.2 MB in the end (delta: 184.5 MB). Free memory was 343.1 MB in the beginning and 427.5 MB in the end (delta: -84.4 MB). Peak memory consumption was 100.2 MB. Max. memory is 5.3 GB. [2018-04-10 16:14:10,088 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 402.7 MB. Free memory is still 363.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:14:10,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.68 ms. Allocated memory is still 402.7 MB. Free memory was 343.1 MB in the beginning and 332.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:14:10,089 INFO L168 Benchmark]: Boogie Preprocessor took 22.53 ms. Allocated memory is still 402.7 MB. Free memory was 332.5 MB in the beginning and 331.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-10 16:14:10,089 INFO L168 Benchmark]: RCFGBuilder took 211.17 ms. Allocated memory was 402.7 MB in the beginning and 587.2 MB in the end (delta: 184.5 MB). Free memory was 331.2 MB in the beginning and 552.4 MB in the end (delta: -221.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-04-10 16:14:10,089 INFO L168 Benchmark]: TraceAbstraction took 1473.89 ms. Allocated memory is still 587.2 MB. Free memory was 551.1 MB in the beginning and 427.5 MB in the end (delta: 123.6 MB). Peak memory consumption was 123.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:14:10,091 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 402.7 MB. Free memory is still 363.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 167.68 ms. Allocated memory is still 402.7 MB. Free memory was 343.1 MB in the beginning and 332.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.53 ms. Allocated memory is still 402.7 MB. Free memory was 332.5 MB in the beginning and 331.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 211.17 ms. Allocated memory was 402.7 MB in the beginning and 587.2 MB in the end (delta: 184.5 MB). Free memory was 331.2 MB in the beginning and 552.4 MB in the end (delta: -221.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1473.89 ms. Allocated memory is still 587.2 MB. Free memory was 551.1 MB in the beginning and 427.5 MB in the end (delta: 123.6 MB). Peak memory consumption was 123.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 29]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 26]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 6 error locations. SAFE Result, 1.4s OverallTime, 8 OverallIterations, 8 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 286 SDtfs, 339 SDslu, 581 SDs, 0 SdLazy, 384 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 148 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=7, 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, 8 MinimizatonAttempts, 46 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 402 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 391 ConstructedInterpolants, 50 QuantifiedInterpolants, 67853 SizeOfPredicates, 2 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 327/345 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-14-10-097.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-14-10-097.csv Received shutdown request...