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_Camel.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 13:53:30,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 13:53:30,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 13:53:30,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 13:53:30,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 13:53:30,659 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 13:53:30,660 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 13:53:30,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 13:53:30,663 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 13:53:30,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 13:53:30,665 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 13:53:30,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 13:53:30,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 13:53:30,666 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 13:53:30,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 13:53:30,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 13:53:30,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 13:53:30,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 13:53:30,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 13:53:30,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 13:53:30,675 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 13:53:30,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 13:53:30,676 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 13:53:30,677 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 13:53:30,677 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 13:53:30,678 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 13:53:30,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 13:53:30,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 13:53:30,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 13:53:30,680 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 13:53:30,680 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 13:53:30,681 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-10 13:53:30,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 13:53:30,692 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 13:53:30,693 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 13:53:30,693 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 13:53:30,694 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 13:53:30,694 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 13:53:30,694 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 13:53:30,694 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 13:53:30,694 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 13:53:30,694 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 13:53:30,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 13:53:30,695 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 13:53:30,695 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 13:53:30,695 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 13:53:30,695 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 13:53:30,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 13:53:30,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 13:53:30,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 13:53:30,697 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-04-10 13:53:30,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 13:53:30,736 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 13:53:30,741 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 13:53:30,742 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 13:53:30,744 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 13:53:30,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 13:53:31,043 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG19554ef77 [2018-04-10 13:53:31,147 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 13:53:31,147 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 13:53:31,148 INFO L168 CDTParser]: Scanning ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 13:53:31,148 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 13:53:31,148 INFO L215 ultiparseSymbolTable]: [2018-04-10 13:53:31,149 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 13:53:31,149 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 13:53:31,149 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 13:53:31,149 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 13:53:31,149 INFO L233 ultiparseSymbolTable]: [2018-04-10 13:53:31,160 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG19554ef77 [2018-04-10 13:53:31,164 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 13:53:31,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 13:53:31,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 13:53:31,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 13:53:31,172 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 13:53:31,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b82edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31, skipping insertion in model container [2018-04-10 13:53:31,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,187 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:53:31,196 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:53:31,317 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:53:31,339 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:53:31,344 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 13:53:31,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31 WrapperNode [2018-04-10 13:53:31,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 13:53:31,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 13:53:31,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 13:53:31,353 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 13:53:31,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (1/1) ... [2018-04-10 13:53:31,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 13:53:31,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 13:53:31,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 13:53:31,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 13:53:31,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (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 13:53:31,424 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 13:53:31,424 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 13:53:31,424 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 13:53:31,425 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 13:53:31,425 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 13:53:31,426 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 13:53:31,614 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 13:53:31,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:53:31 BoogieIcfgContainer [2018-04-10 13:53:31,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 13:53:31,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 13:53:31,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 13:53:31,618 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 13:53:31,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 01:53:31" (1/3) ... [2018-04-10 13:53:31,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd9f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:53:31, skipping insertion in model container [2018-04-10 13:53:31,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:53:31" (2/3) ... [2018-04-10 13:53:31,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd9f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:53:31, skipping insertion in model container [2018-04-10 13:53:31,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:53:31" (3/3) ... [2018-04-10 13:53:31,621 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 13:53:31,629 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 13:53:31,634 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-10 13:53:31,663 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 13:53:31,664 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 13:53:31,664 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 13:53:31,664 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 13:53:31,664 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 13:53:31,665 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 13:53:31,665 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 13:53:31,665 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 13:53:31,665 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 13:53:31,666 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 13:53:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-10 13:53:31,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-10 13:53:31,678 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:31,679 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:53:31,679 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 13:53:31,681 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times [2018-04-10 13:53:31,682 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:31,683 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:31,709 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:31,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:31,710 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:31,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:31,791 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 13:53:31,792 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:53:31,793 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 13:53:31,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 13:53:31,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 13:53:31,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 13:53:31,803 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-10 13:53:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:31,847 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-10 13:53:31,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 13:53:31,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-10 13:53:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:31,855 INFO L225 Difference]: With dead ends: 63 [2018-04-10 13:53:31,855 INFO L226 Difference]: Without dead ends: 59 [2018-04-10 13:53:31,856 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 13:53:31,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-10 13:53:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-10 13:53:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-10 13:53:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-10 13:53:31,883 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-10 13:53:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:31,883 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-10 13:53:31,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 13:53:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-10 13:53:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-10 13:53:31,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:31,884 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:53:31,884 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 13:53:31,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times [2018-04-10 13:53:31,884 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:31,884 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:31,885 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:31,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:31,886 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:31,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:31,952 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 13:53:31,953 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:53:31,953 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 13:53:31,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 13:53:31,954 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 13:53:31,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:53:31,955 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 5 states. [2018-04-10 13:53:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,009 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-04-10 13:53:32,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:53:32,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-10 13:53:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,011 INFO L225 Difference]: With dead ends: 57 [2018-04-10 13:53:32,011 INFO L226 Difference]: Without dead ends: 57 [2018-04-10 13:53:32,012 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 13:53:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-10 13:53:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2018-04-10 13:53:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-10 13:53:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-04-10 13:53:32,016 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2018-04-10 13:53:32,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,016 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-04-10 13:53:32,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 13:53:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-04-10 13:53:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 13:53:32,017 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,017 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 13:53:32,017 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 13:53:32,017 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times [2018-04-10 13:53:32,017 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,017 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,018 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,018 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,028 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,084 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 13:53:32,084 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:53:32,085 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 13:53:32,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 13:53:32,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 13:53:32,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-10 13:53:32,086 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-04-10 13:53:32,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,166 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-04-10 13:53:32,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 13:53:32,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-10 13:53:32,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,168 INFO L225 Difference]: With dead ends: 51 [2018-04-10 13:53:32,168 INFO L226 Difference]: Without dead ends: 51 [2018-04-10 13:53:32,169 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 13:53:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-10 13:53:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-10 13:53:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-10 13:53:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-04-10 13:53:32,173 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 17 [2018-04-10 13:53:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,173 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-04-10 13:53:32,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 13:53:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-04-10 13:53:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 13:53:32,174 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,174 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 13:53:32,174 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 13:53:32,174 INFO L82 PathProgramCache]: Analyzing trace with hash -258746291, now seen corresponding path program 1 times [2018-04-10 13:53:32,174 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,174 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,175 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,175 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,182 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,209 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 13:53:32,209 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:53:32,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 13:53:32,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 13:53:32,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 13:53:32,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:53:32,210 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 5 states. [2018-04-10 13:53:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,236 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-04-10 13:53:32,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 13:53:32,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-10 13:53:32,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,237 INFO L225 Difference]: With dead ends: 50 [2018-04-10 13:53:32,238 INFO L226 Difference]: Without dead ends: 50 [2018-04-10 13:53:32,238 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 13:53:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-10 13:53:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-10 13:53:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-10 13:53:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-10 13:53:32,241 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 17 [2018-04-10 13:53:32,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,242 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-10 13:53:32,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 13:53:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-10 13:53:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 13:53:32,243 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,243 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 13:53:32,243 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 13:53:32,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1933852231, now seen corresponding path program 1 times [2018-04-10 13:53:32,243 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,243 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,244 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,244 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,253 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,294 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 13:53:32,294 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:53:32,294 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-10 13:53:32,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,315 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:53:32,337 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 13:53:32,355 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:53:32,356 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-04-10 13:53:32,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 13:53:32,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 13:53:32,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-10 13:53:32,357 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 9 states. [2018-04-10 13:53:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,427 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-04-10 13:53:32,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 13:53:32,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-04-10 13:53:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,429 INFO L225 Difference]: With dead ends: 60 [2018-04-10 13:53:32,429 INFO L226 Difference]: Without dead ends: 60 [2018-04-10 13:53:32,429 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 13:53:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-10 13:53:32,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-10 13:53:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-10 13:53:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-10 13:53:32,433 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 22 [2018-04-10 13:53:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,434 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-10 13:53:32,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 13:53:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-10 13:53:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-10 13:53:32,435 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,435 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 13:53:32,435 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 13:53:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash 687601263, now seen corresponding path program 1 times [2018-04-10 13:53:32,435 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,435 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,436 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,436 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,450 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,482 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 13:53:32,482 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:53:32,482 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 13:53:32,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 13:53:32,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 13:53:32,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:53:32,483 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-10 13:53:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,512 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-04-10 13:53:32,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 13:53:32,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-04-10 13:53:32,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,513 INFO L225 Difference]: With dead ends: 70 [2018-04-10 13:53:32,513 INFO L226 Difference]: Without dead ends: 70 [2018-04-10 13:53:32,513 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 13:53:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-10 13:53:32,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2018-04-10 13:53:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-10 13:53:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-04-10 13:53:32,518 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-04-10 13:53:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,519 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-04-10 13:53:32,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 13:53:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-04-10 13:53:32,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 13:53:32,520 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,520 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 13:53:32,520 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 13:53:32,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1072164206, now seen corresponding path program 1 times [2018-04-10 13:53:32,520 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,521 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,521 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,522 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,537 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,563 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 13:53:32,563 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:53:32,564 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-10 13:53:32,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,609 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:53:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:53:32,671 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:53:32,672 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-04-10 13:53:32,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 13:53:32,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 13:53:32,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-04-10 13:53:32,672 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 9 states. [2018-04-10 13:53:32,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:32,755 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2018-04-10 13:53:32,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 13:53:32,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-10 13:53:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:32,757 INFO L225 Difference]: With dead ends: 97 [2018-04-10 13:53:32,757 INFO L226 Difference]: Without dead ends: 94 [2018-04-10 13:53:32,757 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-10 13:53:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-10 13:53:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 73. [2018-04-10 13:53:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-10 13:53:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-04-10 13:53:32,762 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 49 [2018-04-10 13:53:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:32,762 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-04-10 13:53:32,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 13:53:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-04-10 13:53:32,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 13:53:32,765 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:53:32,765 INFO L355 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 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 13:53:32,765 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 13:53:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash 211653399, now seen corresponding path program 2 times [2018-04-10 13:53:32,766 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:53:32,766 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:53:32,766 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:53:32,767 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:53:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:53:32,792 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:53:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2018-04-10 13:53:32,844 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:53:32,844 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-10 13:53:32,849 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-10 13:53:32,860 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-10 13:53:32,861 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-10 13:53:32,864 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:53:32,888 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:53:32,891 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 13:53:32,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:53:32,898 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 13:53:32,899 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-10 13:53:32,937 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:53:32,938 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 13:53:32,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:53:32,944 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 13:53:32,944 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-10 13:53:32,978 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 13:53:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-04-10 13:53:33,028 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-10 13:53:33,029 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-04-10 13:53:33,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 13:53:33,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 13:53:33,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2018-04-10 13:53:33,029 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 9 states. [2018-04-10 13:53:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:53:33,236 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2018-04-10 13:53:33,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 13:53:33,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2018-04-10 13:53:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:53:33,237 INFO L225 Difference]: With dead ends: 103 [2018-04-10 13:53:33,237 INFO L226 Difference]: Without dead ends: 0 [2018-04-10 13:53:33,237 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 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 13:53:33,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-10 13:53:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-10 13:53:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-10 13:53:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-10 13:53:33,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2018-04-10 13:53:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:53:33,238 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-10 13:53:33,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 13:53:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-10 13:53:33,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-10 13:53:33,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 01:53:33 BoogieIcfgContainer [2018-04-10 13:53:33,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 13:53:33,242 INFO L168 Benchmark]: Toolchain (without parser) took 2077.55 ms. Allocated memory was 398.5 MB in the beginning and 625.0 MB in the end (delta: 226.5 MB). Free memory was 340.4 MB in the beginning and 446.4 MB in the end (delta: -106.0 MB). Peak memory consumption was 120.5 MB. Max. memory is 5.3 GB. [2018-04-10 13:53:33,243 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 398.5 MB. Free memory is still 361.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 13:53:33,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.07 ms. Allocated memory is still 398.5 MB. Free memory was 340.4 MB in the beginning and 329.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:53:33,244 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 ms. Allocated memory is still 398.5 MB. Free memory was 329.8 MB in the beginning and 328.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-10 13:53:33,244 INFO L168 Benchmark]: RCFGBuilder took 232.66 ms. Allocated memory was 398.5 MB in the beginning and 595.6 MB in the end (delta: 197.1 MB). Free memory was 328.5 MB in the beginning and 559.2 MB in the end (delta: -230.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-04-10 13:53:33,244 INFO L168 Benchmark]: TraceAbstraction took 1626.15 ms. Allocated memory was 595.6 MB in the beginning and 625.0 MB in the end (delta: 29.4 MB). Free memory was 557.6 MB in the beginning and 446.4 MB in the end (delta: 111.2 MB). Peak memory consumption was 140.5 MB. Max. memory is 5.3 GB. [2018-04-10 13:53:33,245 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 398.5 MB. Free memory is still 361.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 186.07 ms. Allocated memory is still 398.5 MB. Free memory was 340.4 MB in the beginning and 329.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.40 ms. Allocated memory is still 398.5 MB. Free memory was 329.8 MB in the beginning and 328.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 232.66 ms. Allocated memory was 398.5 MB in the beginning and 595.6 MB in the end (delta: 197.1 MB). Free memory was 328.5 MB in the beginning and 559.2 MB in the end (delta: -230.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1626.15 ms. Allocated memory was 595.6 MB in the beginning and 625.0 MB in the end (delta: 29.4 MB). Free memory was 557.6 MB in the beginning and 446.4 MB in the end (delta: 111.2 MB). Peak memory consumption was 140.5 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, 1.5s OverallTime, 8 OverallIterations, 10 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 279 SDtfs, 358 SDslu, 619 SDs, 0 SdLazy, 449 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 156 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 426 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 415 ConstructedInterpolants, 62 QuantifiedInterpolants, 89021 SizeOfPredicates, 3 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 477/517 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_13-53-33-252.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_13-53-33-252.csv Received shutdown request...