java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 14:59:40,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 14:59:40,547 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 14:59:40,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 14:59:40,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 14:59:40,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 14:59:40,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 14:59:40,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 14:59:40,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 14:59:40,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 14:59:40,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 14:59:40,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 14:59:40,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 14:59:40,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 14:59:40,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 14:59:40,571 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 14:59:40,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 14:59:40,574 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 14:59:40,575 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 14:59:40,576 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 14:59:40,578 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 14:59:40,578 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 14:59:40,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 14:59:40,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 14:59:40,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 14:59:40,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 14:59:40,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 14:59:40,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 14:59:40,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 14:59:40,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 14:59:40,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 14:59:40,583 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-04-10 14:59:40,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 14:59:40,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 14:59:40,598 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 14:59:40,598 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 14:59:40,598 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 14:59:40,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 14:59:40,599 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 14:59:40,600 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 14:59:40,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 14:59:40,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 14:59:40,601 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 14:59:40,601 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-04-10 14:59:40,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 14:59:40,642 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 14:59:40,645 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 14:59:40,646 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 14:59:40,647 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 14:59:40,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 14:59:40,966 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG33705b80f [2018-04-10 14:59:41,056 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 14:59:41,057 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 14:59:41,057 INFO L168 CDTParser]: Scanning ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 14:59:41,057 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 14:59:41,058 INFO L215 ultiparseSymbolTable]: [2018-04-10 14:59:41,058 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 14:59:41,058 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 14:59:41,058 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 14:59:41,058 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 14:59:41,058 INFO L233 ultiparseSymbolTable]: [2018-04-10 14:59:41,069 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG33705b80f [2018-04-10 14:59:41,073 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 14:59:41,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 14:59:41,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 14:59:41,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 14:59:41,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 14:59:41,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,082 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 02:59:41, skipping insertion in model container [2018-04-10 14:59:41,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,093 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 14:59:41,105 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 14:59:41,212 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 14:59:41,231 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 14:59:41,235 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 14:59:41,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41 WrapperNode [2018-04-10 14:59:41,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 14:59:41,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 14:59:41,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 14:59:41,242 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 14:59:41,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (1/1) ... [2018-04-10 14:59:41,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 14:59:41,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 14:59:41,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 14:59:41,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 14:59:41,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (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 14:59:41,308 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 14:59:41,309 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 14:59:41,309 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 14:59:41,309 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 14:59:41,309 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 14:59:41,530 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 14:59:41,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 02:59:41 BoogieIcfgContainer [2018-04-10 14:59:41,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 14:59:41,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 14:59:41,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 14:59:41,533 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 14:59:41,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 02:59:41" (1/3) ... [2018-04-10 14:59:41,533 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 02:59:41, skipping insertion in model container [2018-04-10 14:59:41,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:59:41" (2/3) ... [2018-04-10 14:59:41,534 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 02:59:41, skipping insertion in model container [2018-04-10 14:59:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 02:59:41" (3/3) ... [2018-04-10 14:59:41,535 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-10 14:59:41,541 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 14:59:41,546 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-10 14:59:41,578 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 14:59:41,579 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 14:59:41,579 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 14:59:41,579 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-10 14:59:41,579 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 14:59:41,580 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 14:59:41,580 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 14:59:41,580 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 14:59:41,580 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 14:59:41,581 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 14:59:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-10 14:59:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-10 14:59:41,602 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:41,603 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:41,603 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 14:59:41,606 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times [2018-04-10 14:59:41,639 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:41,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:41,724 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 14:59:41,726 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:59:41,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 14:59:41,728 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:41,728 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 14:59:41,728 INFO L182 omatonBuilderFactory]: Interpolants [49#true, 50#false, 51#(= main_~i~1 0)] [2018-04-10 14:59:41,729 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 14:59:41,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 14:59:41,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 14:59:41,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 14:59:41,744 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-10 14:59:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:41,797 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-10 14:59:41,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 14:59:41,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-10 14:59:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:41,805 INFO L225 Difference]: With dead ends: 63 [2018-04-10 14:59:41,805 INFO L226 Difference]: Without dead ends: 59 [2018-04-10 14:59:41,807 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 14:59:41,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-10 14:59:41,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-10 14:59:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-10 14:59:41,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-10 14:59:41,837 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-10 14:59:41,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:41,838 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-10 14:59:41,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 14:59:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-10 14:59:41,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-10 14:59:41,838 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:41,839 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:41,839 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 14:59:41,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times [2018-04-10 14:59:41,840 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:41,851 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:41,907 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 14:59:41,907 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:59:41,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 14:59:41,908 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:41,908 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 14:59:41,908 INFO L182 omatonBuilderFactory]: Interpolants [164#true, 165#false, 166#(= 32 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size|), 167#(and (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 168#(= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)] [2018-04-10 14:59:41,908 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 14:59:41,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 14:59:41,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 14:59:41,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-10 14:59:41,910 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 5 states. [2018-04-10 14:59:41,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:41,962 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-04-10 14:59:41,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 14:59:41,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-10 14:59:41,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:41,963 INFO L225 Difference]: With dead ends: 57 [2018-04-10 14:59:41,963 INFO L226 Difference]: Without dead ends: 57 [2018-04-10 14:59:41,964 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 14:59:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-10 14:59:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2018-04-10 14:59:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-10 14:59:41,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-04-10 14:59:41,968 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2018-04-10 14:59:41,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:41,968 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-04-10 14:59:41,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 14:59:41,968 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-04-10 14:59:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 14:59:41,969 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:41,969 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 14:59:41,969 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 14:59:41,969 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times [2018-04-10 14:59:41,970 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:41,982 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,056 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 14:59:42,057 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:59:42,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 14:59:42,057 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,057 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 14:59:42,058 INFO L182 omatonBuilderFactory]: Interpolants [280#true, 281#false, 282#(and (= 32 (select |#length| |main_~#mask~0.base|)) (= 0 |main_~#mask~0.offset|)), 283#(and (= 32 (select |#length| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base|)) (= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset|)), 284#(and (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset 0) (= 32 (select |#length| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base))), 285#(and (<= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0) (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 31) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset 0) (= 32 (select |#length| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base)))] [2018-04-10 14:59:42,058 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 14:59:42,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 14:59:42,059 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 14:59:42,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-10 14:59:42,059 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-04-10 14:59:42,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,128 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-04-10 14:59:42,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 14:59:42,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-10 14:59:42,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,130 INFO L225 Difference]: With dead ends: 51 [2018-04-10 14:59:42,130 INFO L226 Difference]: Without dead ends: 51 [2018-04-10 14:59:42,130 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 14:59:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-10 14:59:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-10 14:59:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-10 14:59:42,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-04-10 14:59:42,135 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 17 [2018-04-10 14:59:42,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,136 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-04-10 14:59:42,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 14:59:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-04-10 14:59:42,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 14:59:42,137 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,137 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 14:59:42,137 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 14:59:42,137 INFO L82 PathProgramCache]: Analyzing trace with hash -258746291, now seen corresponding path program 1 times [2018-04-10 14:59:42,138 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,146 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,181 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 14:59:42,181 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:59:42,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 14:59:42,182 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,182 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 14:59:42,182 INFO L182 omatonBuilderFactory]: Interpolants [392#true, 393#false, 394#(= 1 (select |#valid| |main_~#mask~0.base|)), 395#(= 1 (select |#valid| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base|)), 396#(= 1 (select |#valid| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base))] [2018-04-10 14:59:42,183 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 14:59:42,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 14:59:42,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 14:59:42,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 14:59:42,184 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 5 states. [2018-04-10 14:59:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,223 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-04-10 14:59:42,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 14:59:42,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-10 14:59:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,224 INFO L225 Difference]: With dead ends: 50 [2018-04-10 14:59:42,224 INFO L226 Difference]: Without dead ends: 50 [2018-04-10 14:59:42,224 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 14:59:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-10 14:59:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-10 14:59:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-10 14:59:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-10 14:59:42,229 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 17 [2018-04-10 14:59:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,229 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-10 14:59:42,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 14:59:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-10 14:59:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 14:59:42,230 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,230 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 14:59:42,230 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 14:59:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1933852231, now seen corresponding path program 1 times [2018-04-10 14:59:42,231 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,241 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,299 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 14:59:42,299 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:42,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-10 14:59:42,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,300 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 14:59:42,300 INFO L182 omatonBuilderFactory]: Interpolants [499#true, 500#false, 501#(= 32 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size|), 502#(= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32), 503#(and (<= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)), 504#(and (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (<= 1 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0)), 505#(and (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 31) (<= 1 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0))] [2018-04-10 14:59:42,300 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 14:59:42,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 14:59:42,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 14:59:42,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-10 14:59:42,301 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 7 states. [2018-04-10 14:59:42,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,363 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-04-10 14:59:42,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 14:59:42,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-10 14:59:42,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,364 INFO L225 Difference]: With dead ends: 52 [2018-04-10 14:59:42,364 INFO L226 Difference]: Without dead ends: 52 [2018-04-10 14:59:42,364 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-04-10 14:59:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-10 14:59:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-04-10 14:59:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-10 14:59:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-04-10 14:59:42,367 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 22 [2018-04-10 14:59:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,367 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-04-10 14:59:42,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 14:59:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-04-10 14:59:42,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-10 14:59:42,367 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,367 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 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 14:59:42,368 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 14:59:42,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1693854175, now seen corresponding path program 1 times [2018-04-10 14:59:42,368 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,379 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 14:59:42,403 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:59:42,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 14:59:42,404 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,404 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 14:59:42,404 INFO L182 omatonBuilderFactory]: Interpolants [612#true, 613#false, 614#(<= 0 main_~i~1), 615#(<= 1 main_~i~1), 616#(and (<= main_~i~1 31) (<= 1 main_~i~1))] [2018-04-10 14:59:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 14:59:42,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 14:59:42,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 14:59:42,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 14:59:42,405 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 5 states. [2018-04-10 14:59:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,430 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-04-10 14:59:42,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 14:59:42,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-04-10 14:59:42,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,431 INFO L225 Difference]: With dead ends: 58 [2018-04-10 14:59:42,431 INFO L226 Difference]: Without dead ends: 58 [2018-04-10 14:59:42,431 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 14:59:42,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-10 14:59:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-04-10 14:59:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-04-10 14:59:42,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-04-10 14:59:42,433 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 29 [2018-04-10 14:59:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,434 INFO L459 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-04-10 14:59:42,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 14:59:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-04-10 14:59:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-10 14:59:42,434 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:42,434 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 14:59:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1643098334, now seen corresponding path program 1 times [2018-04-10 14:59:42,435 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,442 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 14:59:42,466 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:42,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-04-10 14:59:42,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,466 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 14:59:42,466 INFO L182 omatonBuilderFactory]: Interpolants [720#false, 721#(= main_~i~1 0), 722#(<= main_~i~1 1), 719#true] [2018-04-10 14:59:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 14:59:42,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 14:59:42,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 14:59:42,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-10 14:59:42,467 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 4 states. [2018-04-10 14:59:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,511 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-04-10 14:59:42,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 14:59:42,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-04-10 14:59:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,512 INFO L225 Difference]: With dead ends: 72 [2018-04-10 14:59:42,512 INFO L226 Difference]: Without dead ends: 72 [2018-04-10 14:59:42,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-10 14:59:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-10 14:59:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2018-04-10 14:59:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-10 14:59:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-04-10 14:59:42,517 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 37 [2018-04-10 14:59:42,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,517 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-04-10 14:59:42,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 14:59:42,517 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-04-10 14:59:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-10 14:59:42,519 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,519 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 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 14:59:42,519 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 14:59:42,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1953764441, now seen corresponding path program 2 times [2018-04-10 14:59:42,520 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,536 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-10 14:59:42,614 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:42,614 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-10 14:59:42,614 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-10 14:59:42,623 INFO L182 omatonBuilderFactory]: Interpolants [850#true, 851#false, 852#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 853#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 854#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-10 14:59:42,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 14:59:42,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 14:59:42,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-10 14:59:42,624 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 5 states. [2018-04-10 14:59:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,689 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-10 14:59:42,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 14:59:42,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2018-04-10 14:59:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,690 INFO L225 Difference]: With dead ends: 68 [2018-04-10 14:59:42,690 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 14:59:42,690 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-10 14:59:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 14:59:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2018-04-10 14:59:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-10 14:59:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-04-10 14:59:42,694 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 55 [2018-04-10 14:59:42,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,694 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-04-10 14:59:42,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 14:59:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-04-10 14:59:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 14:59:42,695 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,695 INFO L355 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 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 14:59:42,696 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__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 14:59:42,696 INFO L82 PathProgramCache]: Analyzing trace with hash -81663113, now seen corresponding path program 3 times [2018-04-10 14:59:42,696 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,710 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-04-10 14:59:42,745 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:42,745 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-10 14:59:42,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-10 14:59:42,745 INFO L182 omatonBuilderFactory]: Interpolants [986#true, 987#false, 988#(= main_~i~1 0), 989#(<= main_~i~1 1), 990#(<= main_~i~1 2)] [2018-04-10 14:59:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-04-10 14:59:42,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 14:59:42,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 14:59:42,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 14:59:42,746 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2018-04-10 14:59:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,783 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2018-04-10 14:59:42,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 14:59:42,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-04-10 14:59:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,784 INFO L225 Difference]: With dead ends: 94 [2018-04-10 14:59:42,784 INFO L226 Difference]: Without dead ends: 94 [2018-04-10 14:59:42,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:59:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-10 14:59:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 72. [2018-04-10 14:59:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-10 14:59:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2018-04-10 14:59:42,789 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 67 [2018-04-10 14:59:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,789 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2018-04-10 14:59:42,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 14:59:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2018-04-10 14:59:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 14:59:42,791 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,791 INFO L355 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:42,791 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__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 14:59:42,791 INFO L82 PathProgramCache]: Analyzing trace with hash -33793592, now seen corresponding path program 4 times [2018-04-10 14:59:42,792 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 10 proven. 84 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-04-10 14:59:42,921 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:42,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-10 14:59:42,921 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-04-10 14:59:42,922 INFO L182 omatonBuilderFactory]: Interpolants [1157#true, 1158#false, 1159#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 1160#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 1161#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 1162#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 10 proven. 84 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-04-10 14:59:42,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 14:59:42,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 14:59:42,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-10 14:59:42,923 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2018-04-10 14:59:42,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:42,968 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2018-04-10 14:59:42,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 14:59:42,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-04-10 14:59:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:42,971 INFO L225 Difference]: With dead ends: 85 [2018-04-10 14:59:42,971 INFO L226 Difference]: Without dead ends: 82 [2018-04-10 14:59:42,971 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-10 14:59:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-10 14:59:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2018-04-10 14:59:42,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-10 14:59:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2018-04-10 14:59:42,976 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 91 [2018-04-10 14:59:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:42,976 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2018-04-10 14:59:42,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 14:59:42,976 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2018-04-10 14:59:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-04-10 14:59:42,977 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:42,977 INFO L355 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:42,977 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__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 14:59:42,978 INFO L82 PathProgramCache]: Analyzing trace with hash -913746080, now seen corresponding path program 5 times [2018-04-10 14:59:42,978 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:42,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-04-10 14:59:43,044 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:43,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-10 14:59:43,045 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-04-10 14:59:43,045 INFO L182 omatonBuilderFactory]: Interpolants [1328#true, 1329#false, 1330#(= main_~i~1 0), 1331#(<= main_~i~1 1), 1332#(<= main_~i~1 2), 1333#(<= main_~i~1 3)] [2018-04-10 14:59:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-04-10 14:59:43,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 14:59:43,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 14:59:43,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-04-10 14:59:43,046 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2018-04-10 14:59:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:43,121 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2018-04-10 14:59:43,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 14:59:43,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-04-10 14:59:43,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:43,123 INFO L225 Difference]: With dead ends: 116 [2018-04-10 14:59:43,123 INFO L226 Difference]: Without dead ends: 116 [2018-04-10 14:59:43,123 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-04-10 14:59:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-04-10 14:59:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 89. [2018-04-10 14:59:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-10 14:59:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2018-04-10 14:59:43,130 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 109 [2018-04-10 14:59:43,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:43,130 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2018-04-10 14:59:43,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 14:59:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2018-04-10 14:59:43,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-04-10 14:59:43,131 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:43,131 INFO L355 BasicCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:43,131 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__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 14:59:43,132 INFO L82 PathProgramCache]: Analyzing trace with hash 969284025, now seen corresponding path program 6 times [2018-04-10 14:59:43,132 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:43,146 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 14 proven. 237 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-10 14:59:43,294 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:43,294 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-04-10 14:59:43,294 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-10 14:59:43,295 INFO L182 omatonBuilderFactory]: Interpolants [1539#true, 1540#false, 1541#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 1542#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 1543#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 1544#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 1545#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 14 proven. 237 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-10 14:59:43,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 14:59:43,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 14:59:43,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-10 14:59:43,296 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 7 states. [2018-04-10 14:59:43,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:43,361 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2018-04-10 14:59:43,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 14:59:43,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2018-04-10 14:59:43,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:43,363 INFO L225 Difference]: With dead ends: 102 [2018-04-10 14:59:43,363 INFO L226 Difference]: Without dead ends: 99 [2018-04-10 14:59:43,364 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-04-10 14:59:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-10 14:59:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2018-04-10 14:59:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-10 14:59:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2018-04-10 14:59:43,368 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 139 [2018-04-10 14:59:43,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:43,368 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2018-04-10 14:59:43,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 14:59:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2018-04-10 14:59:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-04-10 14:59:43,370 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:43,371 INFO L355 BasicCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:43,375 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__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 14:59:43,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1862037927, now seen corresponding path program 7 times [2018-04-10 14:59:43,376 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:43,398 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 884 trivial. 0 not checked. [2018-04-10 14:59:43,481 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:43,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-04-10 14:59:43,481 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-04-10 14:59:43,482 INFO L182 omatonBuilderFactory]: Interpolants [1745#true, 1746#false, 1747#(= main_~i~1 0), 1748#(<= main_~i~1 1), 1749#(<= main_~i~1 2), 1750#(<= main_~i~1 3), 1751#(<= main_~i~1 4)] [2018-04-10 14:59:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 884 trivial. 0 not checked. [2018-04-10 14:59:43,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 14:59:43,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 14:59:43,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-04-10 14:59:43,483 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand 7 states. [2018-04-10 14:59:43,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:43,542 INFO L93 Difference]: Finished difference Result 138 states and 146 transitions. [2018-04-10 14:59:43,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 14:59:43,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2018-04-10 14:59:43,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:43,543 INFO L225 Difference]: With dead ends: 138 [2018-04-10 14:59:43,544 INFO L226 Difference]: Without dead ends: 138 [2018-04-10 14:59:43,544 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-04-10 14:59:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-04-10 14:59:43,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 106. [2018-04-10 14:59:43,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-04-10 14:59:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2018-04-10 14:59:43,546 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 163 [2018-04-10 14:59:43,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:43,547 INFO L459 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2018-04-10 14:59:43,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 14:59:43,547 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2018-04-10 14:59:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-04-10 14:59:43,548 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:43,548 INFO L355 BasicCegarLoop]: trace histogram [25, 20, 20, 20, 20, 20, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:43,548 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__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 14:59:43,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1319247558, now seen corresponding path program 8 times [2018-04-10 14:59:43,549 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:43,566 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 18 proven. 512 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2018-04-10 14:59:43,747 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:43,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-10 14:59:43,747 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-04-10 14:59:43,747 INFO L182 omatonBuilderFactory]: Interpolants [2000#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2001#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2002#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2003#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 1996#true, 1997#false, 1998#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 1999#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 14:59:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 18 proven. 512 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2018-04-10 14:59:43,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 14:59:43,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 14:59:43,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-04-10 14:59:43,748 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand 8 states. [2018-04-10 14:59:43,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:43,808 INFO L93 Difference]: Finished difference Result 119 states and 130 transitions. [2018-04-10 14:59:43,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 14:59:43,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2018-04-10 14:59:43,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:43,809 INFO L225 Difference]: With dead ends: 119 [2018-04-10 14:59:43,809 INFO L226 Difference]: Without dead ends: 116 [2018-04-10 14:59:43,810 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-10 14:59:43,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-04-10 14:59:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-04-10 14:59:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-10 14:59:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2018-04-10 14:59:43,813 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 199 [2018-04-10 14:59:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:43,813 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2018-04-10 14:59:43,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 14:59:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2018-04-10 14:59:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-04-10 14:59:43,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:43,821 INFO L355 BasicCegarLoop]: trace histogram [30, 25, 25, 25, 25, 25, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:43,821 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__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 14:59:43,822 INFO L82 PathProgramCache]: Analyzing trace with hash 125993506, now seen corresponding path program 9 times [2018-04-10 14:59:43,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:43,851 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2110 trivial. 0 not checked. [2018-04-10 14:59:43,970 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:43,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-10 14:59:43,971 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2018-04-10 14:59:43,971 INFO L182 omatonBuilderFactory]: Interpolants [2240#(<= main_~i~1 1), 2241#(<= main_~i~1 2), 2242#(<= main_~i~1 3), 2243#(<= main_~i~1 4), 2244#(<= main_~i~1 5), 2237#true, 2238#false, 2239#(= main_~i~1 0)] [2018-04-10 14:59:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2110 trivial. 0 not checked. [2018-04-10 14:59:43,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 14:59:43,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 14:59:43,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-04-10 14:59:43,972 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand 8 states. [2018-04-10 14:59:44,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:44,043 INFO L93 Difference]: Finished difference Result 160 states and 169 transitions. [2018-04-10 14:59:44,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 14:59:44,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2018-04-10 14:59:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:44,044 INFO L225 Difference]: With dead ends: 160 [2018-04-10 14:59:44,044 INFO L226 Difference]: Without dead ends: 160 [2018-04-10 14:59:44,045 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-04-10 14:59:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-04-10 14:59:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 123. [2018-04-10 14:59:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-10 14:59:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2018-04-10 14:59:44,049 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 229 [2018-04-10 14:59:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:44,049 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2018-04-10 14:59:44,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 14:59:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2018-04-10 14:59:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-04-10 14:59:44,053 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:44,053 INFO L355 BasicCegarLoop]: trace histogram [36, 30, 30, 30, 30, 30, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:44,053 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__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 14:59:44,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2046000651, now seen corresponding path program 10 times [2018-04-10 14:59:44,054 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:44,085 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 22 proven. 945 refuted. 0 times theorem prover too weak. 2195 trivial. 0 not checked. [2018-04-10 14:59:44,379 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:44,379 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 14:59:44,379 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2018-04-10 14:59:44,380 INFO L182 omatonBuilderFactory]: Interpolants [2528#true, 2529#false, 2530#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 2531#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2532#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2533#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2534#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2535#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 2536#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 22 proven. 945 refuted. 0 times theorem prover too weak. 2195 trivial. 0 not checked. [2018-04-10 14:59:44,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 14:59:44,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 14:59:44,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-10 14:59:44,381 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 9 states. [2018-04-10 14:59:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:44,438 INFO L93 Difference]: Finished difference Result 136 states and 149 transitions. [2018-04-10 14:59:44,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 14:59:44,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 271 [2018-04-10 14:59:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:44,439 INFO L225 Difference]: With dead ends: 136 [2018-04-10 14:59:44,439 INFO L226 Difference]: Without dead ends: 133 [2018-04-10 14:59:44,440 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-04-10 14:59:44,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-10 14:59:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2018-04-10 14:59:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-10 14:59:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2018-04-10 14:59:44,444 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 271 [2018-04-10 14:59:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:44,444 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2018-04-10 14:59:44,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 14:59:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2018-04-10 14:59:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-04-10 14:59:44,446 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:44,446 INFO L355 BasicCegarLoop]: trace histogram [42, 36, 36, 36, 36, 36, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:44,446 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__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 14:59:44,446 INFO L82 PathProgramCache]: Analyzing trace with hash -416957317, now seen corresponding path program 11 times [2018-04-10 14:59:44,447 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:44,486 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 4302 trivial. 0 not checked. [2018-04-10 14:59:44,665 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:44,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 14:59:44,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2018-04-10 14:59:44,666 INFO L182 omatonBuilderFactory]: Interpolants [2804#true, 2805#false, 2806#(= main_~i~1 0), 2807#(<= main_~i~1 1), 2808#(<= main_~i~1 2), 2809#(<= main_~i~1 3), 2810#(<= main_~i~1 4), 2811#(<= main_~i~1 5), 2812#(<= main_~i~1 6)] [2018-04-10 14:59:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 4302 trivial. 0 not checked. [2018-04-10 14:59:44,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 14:59:44,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 14:59:44,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-04-10 14:59:44,667 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 9 states. [2018-04-10 14:59:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:44,755 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2018-04-10 14:59:44,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 14:59:44,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 307 [2018-04-10 14:59:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:44,756 INFO L225 Difference]: With dead ends: 182 [2018-04-10 14:59:44,756 INFO L226 Difference]: Without dead ends: 182 [2018-04-10 14:59:44,757 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-04-10 14:59:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-10 14:59:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 140. [2018-04-10 14:59:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-10 14:59:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 155 transitions. [2018-04-10 14:59:44,761 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 155 transitions. Word has length 307 [2018-04-10 14:59:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:44,761 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 155 transitions. [2018-04-10 14:59:44,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 14:59:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 155 transitions. [2018-04-10 14:59:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-04-10 14:59:44,763 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:44,764 INFO L355 BasicCegarLoop]: trace histogram [49, 42, 42, 42, 42, 42, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:44,764 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__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 14:59:44,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1766255124, now seen corresponding path program 12 times [2018-04-10 14:59:44,765 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:44,802 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 26 proven. 1572 refuted. 0 times theorem prover too weak. 4422 trivial. 0 not checked. [2018-04-10 14:59:45,201 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:45,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-10 14:59:45,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2018-04-10 14:59:45,202 INFO L182 omatonBuilderFactory]: Interpolants [3136#false, 3137#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 3138#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3139#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3140#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3141#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3142#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3143#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3144#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 3135#true] [2018-04-10 14:59:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 26 proven. 1572 refuted. 0 times theorem prover too weak. 4422 trivial. 0 not checked. [2018-04-10 14:59:45,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 14:59:45,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 14:59:45,205 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-04-10 14:59:45,205 INFO L87 Difference]: Start difference. First operand 140 states and 155 transitions. Second operand 10 states. [2018-04-10 14:59:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:45,277 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2018-04-10 14:59:45,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 14:59:45,278 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 355 [2018-04-10 14:59:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:45,279 INFO L225 Difference]: With dead ends: 153 [2018-04-10 14:59:45,279 INFO L226 Difference]: Without dead ends: 150 [2018-04-10 14:59:45,279 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-04-10 14:59:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-04-10 14:59:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2018-04-10 14:59:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-10 14:59:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 161 transitions. [2018-04-10 14:59:45,282 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 161 transitions. Word has length 355 [2018-04-10 14:59:45,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:45,282 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 161 transitions. [2018-04-10 14:59:45,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 14:59:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 161 transitions. [2018-04-10 14:59:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-04-10 14:59:45,284 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:45,284 INFO L355 BasicCegarLoop]: trace histogram [56, 49, 49, 49, 49, 49, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:45,284 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__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 14:59:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1901043492, now seen corresponding path program 13 times [2018-04-10 14:59:45,285 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:45,316 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8008 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 7868 trivial. 0 not checked. [2018-04-10 14:59:45,603 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:45,604 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-10 14:59:45,604 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2018-04-10 14:59:45,605 INFO L182 omatonBuilderFactory]: Interpolants [3446#true, 3447#false, 3448#(= main_~i~1 0), 3449#(<= main_~i~1 1), 3450#(<= main_~i~1 2), 3451#(<= main_~i~1 3), 3452#(<= main_~i~1 4), 3453#(<= main_~i~1 5), 3454#(<= main_~i~1 6), 3455#(<= main_~i~1 7)] [2018-04-10 14:59:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8008 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 7868 trivial. 0 not checked. [2018-04-10 14:59:45,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 14:59:45,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 14:59:45,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-04-10 14:59:45,608 INFO L87 Difference]: Start difference. First operand 146 states and 161 transitions. Second operand 10 states. [2018-04-10 14:59:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:45,711 INFO L93 Difference]: Finished difference Result 204 states and 215 transitions. [2018-04-10 14:59:45,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 14:59:45,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 397 [2018-04-10 14:59:45,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:45,712 INFO L225 Difference]: With dead ends: 204 [2018-04-10 14:59:45,712 INFO L226 Difference]: Without dead ends: 204 [2018-04-10 14:59:45,712 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-04-10 14:59:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-04-10 14:59:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 157. [2018-04-10 14:59:45,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-10 14:59:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 174 transitions. [2018-04-10 14:59:45,732 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 174 transitions. Word has length 397 [2018-04-10 14:59:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:45,733 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 174 transitions. [2018-04-10 14:59:45,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 14:59:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 174 transitions. [2018-04-10 14:59:45,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-04-10 14:59:45,736 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:45,736 INFO L355 BasicCegarLoop]: trace histogram [64, 56, 56, 56, 56, 56, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:45,736 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__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 14:59:45,737 INFO L82 PathProgramCache]: Analyzing trace with hash 319186589, now seen corresponding path program 14 times [2018-04-10 14:59:45,737 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:45,782 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 10488 backedges. 30 proven. 2429 refuted. 0 times theorem prover too weak. 8029 trivial. 0 not checked. [2018-04-10 14:59:46,308 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:46,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 14:59:46,309 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2018-04-10 14:59:46,310 INFO L182 omatonBuilderFactory]: Interpolants [3824#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3825#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3826#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3827#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 3817#true, 3818#false, 3819#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 3820#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3821#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3822#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 3823#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 14:59:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10488 backedges. 30 proven. 2429 refuted. 0 times theorem prover too weak. 8029 trivial. 0 not checked. [2018-04-10 14:59:46,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-10 14:59:46,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-10 14:59:46,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-04-10 14:59:46,312 INFO L87 Difference]: Start difference. First operand 157 states and 174 transitions. Second operand 11 states. [2018-04-10 14:59:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:46,418 INFO L93 Difference]: Finished difference Result 170 states and 187 transitions. [2018-04-10 14:59:46,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 14:59:46,419 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 451 [2018-04-10 14:59:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:46,420 INFO L225 Difference]: With dead ends: 170 [2018-04-10 14:59:46,420 INFO L226 Difference]: Without dead ends: 167 [2018-04-10 14:59:46,421 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-04-10 14:59:46,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-04-10 14:59:46,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2018-04-10 14:59:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-04-10 14:59:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 180 transitions. [2018-04-10 14:59:46,425 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 180 transitions. Word has length 451 [2018-04-10 14:59:46,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:46,425 INFO L459 AbstractCegarLoop]: Abstraction has 163 states and 180 transitions. [2018-04-10 14:59:46,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-10 14:59:46,426 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 180 transitions. [2018-04-10 14:59:46,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-04-10 14:59:46,428 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:46,429 INFO L355 BasicCegarLoop]: trace histogram [72, 64, 64, 64, 64, 64, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:46,429 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__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 14:59:46,429 INFO L82 PathProgramCache]: Analyzing trace with hash -702635043, now seen corresponding path program 15 times [2018-04-10 14:59:46,430 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:46,474 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 13472 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 13288 trivial. 0 not checked. [2018-04-10 14:59:46,788 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:46,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 14:59:46,788 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2018-04-10 14:59:46,789 INFO L182 omatonBuilderFactory]: Interpolants [4163#true, 4164#false, 4165#(= main_~i~1 0), 4166#(<= main_~i~1 1), 4167#(<= main_~i~1 2), 4168#(<= main_~i~1 3), 4169#(<= main_~i~1 4), 4170#(<= main_~i~1 5), 4171#(<= main_~i~1 6), 4172#(<= main_~i~1 7), 4173#(<= main_~i~1 8)] [2018-04-10 14:59:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13472 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 13288 trivial. 0 not checked. [2018-04-10 14:59:46,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-10 14:59:46,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-10 14:59:46,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-04-10 14:59:46,791 INFO L87 Difference]: Start difference. First operand 163 states and 180 transitions. Second operand 11 states. [2018-04-10 14:59:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:46,882 INFO L93 Difference]: Finished difference Result 226 states and 238 transitions. [2018-04-10 14:59:46,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 14:59:46,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 499 [2018-04-10 14:59:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:46,883 INFO L225 Difference]: With dead ends: 226 [2018-04-10 14:59:46,884 INFO L226 Difference]: Without dead ends: 226 [2018-04-10 14:59:46,884 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-04-10 14:59:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-04-10 14:59:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 174. [2018-04-10 14:59:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-04-10 14:59:46,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 193 transitions. [2018-04-10 14:59:46,887 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 193 transitions. Word has length 499 [2018-04-10 14:59:46,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:46,887 INFO L459 AbstractCegarLoop]: Abstraction has 174 states and 193 transitions. [2018-04-10 14:59:46,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-10 14:59:46,887 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 193 transitions. [2018-04-10 14:59:46,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2018-04-10 14:59:46,889 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:46,889 INFO L355 BasicCegarLoop]: trace histogram [81, 72, 72, 72, 72, 72, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:46,889 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__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 14:59:46,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1002440158, now seen corresponding path program 16 times [2018-04-10 14:59:46,890 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:46,920 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 17082 backedges. 34 proven. 3552 refuted. 0 times theorem prover too weak. 13496 trivial. 0 not checked. [2018-04-10 14:59:47,481 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:47,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 14:59:47,481 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 0 proven. 424 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2018-04-10 14:59:47,482 INFO L182 omatonBuilderFactory]: Interpolants [4576#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 4577#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4578#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4579#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4580#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4581#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4582#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4583#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 4584#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 4585#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 4574#true, 4575#false] [2018-04-10 14:59:47,483 INFO L134 CoverageAnalysis]: Checked inductivity of 17082 backedges. 34 proven. 3552 refuted. 0 times theorem prover too weak. 13496 trivial. 0 not checked. [2018-04-10 14:59:47,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 14:59:47,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 14:59:47,484 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-04-10 14:59:47,484 INFO L87 Difference]: Start difference. First operand 174 states and 193 transitions. Second operand 12 states. [2018-04-10 14:59:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:47,571 INFO L93 Difference]: Finished difference Result 187 states and 206 transitions. [2018-04-10 14:59:47,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 14:59:47,571 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 559 [2018-04-10 14:59:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:47,573 INFO L225 Difference]: With dead ends: 187 [2018-04-10 14:59:47,573 INFO L226 Difference]: Without dead ends: 184 [2018-04-10 14:59:47,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-04-10 14:59:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-10 14:59:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2018-04-10 14:59:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-10 14:59:47,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 199 transitions. [2018-04-10 14:59:47,578 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 199 transitions. Word has length 559 [2018-04-10 14:59:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:47,578 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 199 transitions. [2018-04-10 14:59:47,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 14:59:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 199 transitions. [2018-04-10 14:59:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2018-04-10 14:59:47,582 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:47,583 INFO L355 BasicCegarLoop]: trace histogram [90, 81, 81, 81, 81, 81, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:47,583 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__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 14:59:47,583 INFO L82 PathProgramCache]: Analyzing trace with hash -978150298, now seen corresponding path program 17 times [2018-04-10 14:59:47,583 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:47,633 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 21348 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 21114 trivial. 0 not checked. [2018-04-10 14:59:48,087 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:48,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 14:59:48,088 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2160 trivial. 0 not checked. [2018-04-10 14:59:48,088 INFO L182 omatonBuilderFactory]: Interpolants [4960#(<= main_~i~1 3), 4961#(<= main_~i~1 4), 4962#(<= main_~i~1 5), 4963#(<= main_~i~1 6), 4964#(<= main_~i~1 7), 4965#(<= main_~i~1 8), 4966#(<= main_~i~1 9), 4955#true, 4956#false, 4957#(= main_~i~1 0), 4958#(<= main_~i~1 1), 4959#(<= main_~i~1 2)] [2018-04-10 14:59:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 21348 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 21114 trivial. 0 not checked. [2018-04-10 14:59:48,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 14:59:48,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 14:59:48,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-04-10 14:59:48,090 INFO L87 Difference]: Start difference. First operand 180 states and 199 transitions. Second operand 12 states. [2018-04-10 14:59:48,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:48,224 INFO L93 Difference]: Finished difference Result 248 states and 261 transitions. [2018-04-10 14:59:48,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 14:59:48,225 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 613 [2018-04-10 14:59:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:48,226 INFO L225 Difference]: With dead ends: 248 [2018-04-10 14:59:48,227 INFO L226 Difference]: Without dead ends: 248 [2018-04-10 14:59:48,227 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-04-10 14:59:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-04-10 14:59:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 191. [2018-04-10 14:59:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-04-10 14:59:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 212 transitions. [2018-04-10 14:59:48,230 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 212 transitions. Word has length 613 [2018-04-10 14:59:48,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:48,230 INFO L459 AbstractCegarLoop]: Abstraction has 191 states and 212 transitions. [2018-04-10 14:59:48,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 14:59:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 212 transitions. [2018-04-10 14:59:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2018-04-10 14:59:48,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:48,234 INFO L355 BasicCegarLoop]: trace histogram [100, 90, 90, 90, 90, 90, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:48,234 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__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 14:59:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash 711631215, now seen corresponding path program 18 times [2018-04-10 14:59:48,234 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:48,281 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:49,092 INFO L134 CoverageAnalysis]: Checked inductivity of 26390 backedges. 38 proven. 4977 refuted. 0 times theorem prover too weak. 21375 trivial. 0 not checked. [2018-04-10 14:59:49,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:49,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-10 14:59:49,092 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 531 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2018-04-10 14:59:49,093 INFO L182 omatonBuilderFactory]: Interpolants [5408#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 5409#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5410#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5411#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5412#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5413#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5414#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5415#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5416#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 5417#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 5418#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 5406#true, 5407#false] [2018-04-10 14:59:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 26390 backedges. 38 proven. 4977 refuted. 0 times theorem prover too weak. 21375 trivial. 0 not checked. [2018-04-10 14:59:49,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 14:59:49,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 14:59:49,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-04-10 14:59:49,094 INFO L87 Difference]: Start difference. First operand 191 states and 212 transitions. Second operand 13 states. [2018-04-10 14:59:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:49,198 INFO L93 Difference]: Finished difference Result 204 states and 225 transitions. [2018-04-10 14:59:49,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 14:59:49,199 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 679 [2018-04-10 14:59:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:49,200 INFO L225 Difference]: With dead ends: 204 [2018-04-10 14:59:49,200 INFO L226 Difference]: Without dead ends: 201 [2018-04-10 14:59:49,201 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2018-04-10 14:59:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-04-10 14:59:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2018-04-10 14:59:49,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-04-10 14:59:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2018-04-10 14:59:49,206 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 679 [2018-04-10 14:59:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:49,206 INFO L459 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2018-04-10 14:59:49,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 14:59:49,206 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2018-04-10 14:59:49,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2018-04-10 14:59:49,211 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:49,212 INFO L355 BasicCegarLoop]: trace histogram [110, 100, 100, 100, 100, 100, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:49,212 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__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 14:59:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1834618241, now seen corresponding path program 19 times [2018-04-10 14:59:49,213 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:49,274 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 32260 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 31970 trivial. 0 not checked. [2018-04-10 14:59:49,897 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:49,897 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-10 14:59:49,897 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2018-04-10 14:59:49,897 INFO L182 omatonBuilderFactory]: Interpolants [5824#(= main_~i~1 0), 5825#(<= main_~i~1 1), 5826#(<= main_~i~1 2), 5827#(<= main_~i~1 3), 5828#(<= main_~i~1 4), 5829#(<= main_~i~1 5), 5830#(<= main_~i~1 6), 5831#(<= main_~i~1 7), 5832#(<= main_~i~1 8), 5833#(<= main_~i~1 9), 5834#(<= main_~i~1 10), 5822#true, 5823#false] [2018-04-10 14:59:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 32260 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 31970 trivial. 0 not checked. [2018-04-10 14:59:49,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 14:59:49,898 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 14:59:49,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-04-10 14:59:49,899 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand 13 states. [2018-04-10 14:59:50,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:50,038 INFO L93 Difference]: Finished difference Result 270 states and 284 transitions. [2018-04-10 14:59:50,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 14:59:50,039 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 739 [2018-04-10 14:59:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:50,040 INFO L225 Difference]: With dead ends: 270 [2018-04-10 14:59:50,040 INFO L226 Difference]: Without dead ends: 270 [2018-04-10 14:59:50,041 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-04-10 14:59:50,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-04-10 14:59:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 208. [2018-04-10 14:59:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-04-10 14:59:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 231 transitions. [2018-04-10 14:59:50,044 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 231 transitions. Word has length 739 [2018-04-10 14:59:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:50,045 INFO L459 AbstractCegarLoop]: Abstraction has 208 states and 231 transitions. [2018-04-10 14:59:50,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 14:59:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 231 transitions. [2018-04-10 14:59:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2018-04-10 14:59:50,051 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:50,051 INFO L355 BasicCegarLoop]: trace histogram [121, 110, 110, 110, 110, 110, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:50,051 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__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 14:59:50,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2041430256, now seen corresponding path program 20 times [2018-04-10 14:59:50,052 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:50,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 39072 backedges. 42 proven. 6740 refuted. 0 times theorem prover too weak. 32290 trivial. 0 not checked. [2018-04-10 14:59:51,042 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:51,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-10 14:59:51,042 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 2980 trivial. 0 not checked. [2018-04-10 14:59:51,042 INFO L182 omatonBuilderFactory]: Interpolants [6313#true, 6314#false, 6315#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 6316#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6317#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6318#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6319#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6320#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6321#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6322#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6323#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 6324#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6325#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 6326#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 39072 backedges. 42 proven. 6740 refuted. 0 times theorem prover too weak. 32290 trivial. 0 not checked. [2018-04-10 14:59:51,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-10 14:59:51,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-10 14:59:51,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2018-04-10 14:59:51,044 INFO L87 Difference]: Start difference. First operand 208 states and 231 transitions. Second operand 14 states. [2018-04-10 14:59:51,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:51,102 INFO L93 Difference]: Finished difference Result 221 states and 244 transitions. [2018-04-10 14:59:51,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 14:59:51,103 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 811 [2018-04-10 14:59:51,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:51,104 INFO L225 Difference]: With dead ends: 221 [2018-04-10 14:59:51,104 INFO L226 Difference]: Without dead ends: 218 [2018-04-10 14:59:51,104 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2018-04-10 14:59:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-04-10 14:59:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2018-04-10 14:59:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-04-10 14:59:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 237 transitions. [2018-04-10 14:59:51,107 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 237 transitions. Word has length 811 [2018-04-10 14:59:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:51,107 INFO L459 AbstractCegarLoop]: Abstraction has 214 states and 237 transitions. [2018-04-10 14:59:51,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-10 14:59:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 237 transitions. [2018-04-10 14:59:51,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2018-04-10 14:59:51,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:51,111 INFO L355 BasicCegarLoop]: trace histogram [132, 121, 121, 121, 121, 121, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:51,111 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__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 14:59:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1088231448, now seen corresponding path program 21 times [2018-04-10 14:59:51,112 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:51,155 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 46904 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 46552 trivial. 0 not checked. [2018-04-10 14:59:51,954 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:51,954 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-10 14:59:51,954 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2018-04-10 14:59:51,955 INFO L182 omatonBuilderFactory]: Interpolants [6764#true, 6765#false, 6766#(= main_~i~1 0), 6767#(<= main_~i~1 1), 6768#(<= main_~i~1 2), 6769#(<= main_~i~1 3), 6770#(<= main_~i~1 4), 6771#(<= main_~i~1 5), 6772#(<= main_~i~1 6), 6773#(<= main_~i~1 7), 6774#(<= main_~i~1 8), 6775#(<= main_~i~1 9), 6776#(<= main_~i~1 10), 6777#(<= main_~i~1 11)] [2018-04-10 14:59:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 46904 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 46552 trivial. 0 not checked. [2018-04-10 14:59:51,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-10 14:59:51,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-10 14:59:51,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-04-10 14:59:51,956 INFO L87 Difference]: Start difference. First operand 214 states and 237 transitions. Second operand 14 states. [2018-04-10 14:59:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:52,101 INFO L93 Difference]: Finished difference Result 292 states and 307 transitions. [2018-04-10 14:59:52,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 14:59:52,101 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 877 [2018-04-10 14:59:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:52,104 INFO L225 Difference]: With dead ends: 292 [2018-04-10 14:59:52,104 INFO L226 Difference]: Without dead ends: 292 [2018-04-10 14:59:52,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-04-10 14:59:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-04-10 14:59:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 225. [2018-04-10 14:59:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-04-10 14:59:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 250 transitions. [2018-04-10 14:59:52,110 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 250 transitions. Word has length 877 [2018-04-10 14:59:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:52,111 INFO L459 AbstractCegarLoop]: Abstraction has 225 states and 250 transitions. [2018-04-10 14:59:52,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-10 14:59:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 250 transitions. [2018-04-10 14:59:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2018-04-10 14:59:52,118 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:52,118 INFO L355 BasicCegarLoop]: trace histogram [144, 132, 132, 132, 132, 132, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:52,119 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__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 14:59:52,119 INFO L82 PathProgramCache]: Analyzing trace with hash -500335487, now seen corresponding path program 22 times [2018-04-10 14:59:52,120 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:52,194 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 55860 backedges. 46 proven. 8877 refuted. 0 times theorem prover too weak. 46937 trivial. 0 not checked. [2018-04-10 14:59:53,433 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:53,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 14:59:53,433 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 0 proven. 781 refuted. 0 times theorem prover too weak. 3971 trivial. 0 not checked. [2018-04-10 14:59:53,434 INFO L182 omatonBuilderFactory]: Interpolants [7296#false, 7297#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 7298#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7299#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7300#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7301#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7302#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7303#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7304#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7305#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 7306#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7307#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 7308#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 7309#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 7295#true] [2018-04-10 14:59:53,435 INFO L134 CoverageAnalysis]: Checked inductivity of 55860 backedges. 46 proven. 8877 refuted. 0 times theorem prover too weak. 46937 trivial. 0 not checked. [2018-04-10 14:59:53,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 14:59:53,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 14:59:53,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2018-04-10 14:59:53,435 INFO L87 Difference]: Start difference. First operand 225 states and 250 transitions. Second operand 15 states. [2018-04-10 14:59:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:53,509 INFO L93 Difference]: Finished difference Result 238 states and 263 transitions. [2018-04-10 14:59:53,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-10 14:59:53,509 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 955 [2018-04-10 14:59:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:53,510 INFO L225 Difference]: With dead ends: 238 [2018-04-10 14:59:53,510 INFO L226 Difference]: Without dead ends: 235 [2018-04-10 14:59:53,511 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2018-04-10 14:59:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-04-10 14:59:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 231. [2018-04-10 14:59:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-04-10 14:59:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 256 transitions. [2018-04-10 14:59:53,516 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 256 transitions. Word has length 955 [2018-04-10 14:59:53,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:53,516 INFO L459 AbstractCegarLoop]: Abstraction has 231 states and 256 transitions. [2018-04-10 14:59:53,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 14:59:53,516 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 256 transitions. [2018-04-10 14:59:53,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2018-04-10 14:59:53,525 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:53,525 INFO L355 BasicCegarLoop]: trace histogram [156, 144, 144, 144, 144, 144, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:53,526 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__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 14:59:53,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1879255455, now seen corresponding path program 23 times [2018-04-10 14:59:53,527 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:53,602 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 66048 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 65628 trivial. 0 not checked. [2018-04-10 14:59:54,558 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:54,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 14:59:54,559 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5148 trivial. 0 not checked. [2018-04-10 14:59:54,559 INFO L182 omatonBuilderFactory]: Interpolants [7781#true, 7782#false, 7783#(= main_~i~1 0), 7784#(<= main_~i~1 1), 7785#(<= main_~i~1 2), 7786#(<= main_~i~1 3), 7787#(<= main_~i~1 4), 7788#(<= main_~i~1 5), 7789#(<= main_~i~1 6), 7790#(<= main_~i~1 7), 7791#(<= main_~i~1 8), 7792#(<= main_~i~1 9), 7793#(<= main_~i~1 10), 7794#(<= main_~i~1 11), 7795#(<= main_~i~1 12)] [2018-04-10 14:59:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 66048 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 65628 trivial. 0 not checked. [2018-04-10 14:59:54,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 14:59:54,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 14:59:54,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-04-10 14:59:54,560 INFO L87 Difference]: Start difference. First operand 231 states and 256 transitions. Second operand 15 states. [2018-04-10 14:59:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:54,719 INFO L93 Difference]: Finished difference Result 314 states and 330 transitions. [2018-04-10 14:59:54,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-10 14:59:54,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1027 [2018-04-10 14:59:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:54,721 INFO L225 Difference]: With dead ends: 314 [2018-04-10 14:59:54,721 INFO L226 Difference]: Without dead ends: 314 [2018-04-10 14:59:54,721 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-04-10 14:59:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-04-10 14:59:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 242. [2018-04-10 14:59:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-04-10 14:59:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 269 transitions. [2018-04-10 14:59:54,725 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 269 transitions. Word has length 1027 [2018-04-10 14:59:54,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:54,726 INFO L459 AbstractCegarLoop]: Abstraction has 242 states and 269 transitions. [2018-04-10 14:59:54,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 14:59:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 269 transitions. [2018-04-10 14:59:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2018-04-10 14:59:54,732 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:54,732 INFO L355 BasicCegarLoop]: trace histogram [169, 156, 156, 156, 156, 156, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:54,732 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__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 14:59:54,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1856294786, now seen corresponding path program 24 times [2018-04-10 14:59:54,733 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:54,782 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 77558 backedges. 50 proven. 11424 refuted. 0 times theorem prover too weak. 66084 trivial. 0 not checked. [2018-04-10 14:59:56,360 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:56,361 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 14:59:56,361 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 924 refuted. 0 times theorem prover too weak. 5160 trivial. 0 not checked. [2018-04-10 14:59:56,361 INFO L182 omatonBuilderFactory]: Interpolants [8352#true, 8353#false, 8354#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 8355#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8356#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8357#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8358#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8359#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8360#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8361#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8362#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 8363#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8364#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8365#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 8366#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 8367#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 14:59:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 77558 backedges. 50 proven. 11424 refuted. 0 times theorem prover too weak. 66084 trivial. 0 not checked. [2018-04-10 14:59:56,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 14:59:56,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 14:59:56,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2018-04-10 14:59:56,363 INFO L87 Difference]: Start difference. First operand 242 states and 269 transitions. Second operand 16 states. [2018-04-10 14:59:56,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:56,437 INFO L93 Difference]: Finished difference Result 255 states and 282 transitions. [2018-04-10 14:59:56,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 14:59:56,437 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1111 [2018-04-10 14:59:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:56,439 INFO L225 Difference]: With dead ends: 255 [2018-04-10 14:59:56,439 INFO L226 Difference]: Without dead ends: 252 [2018-04-10 14:59:56,439 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2018-04-10 14:59:56,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-04-10 14:59:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 248. [2018-04-10 14:59:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-04-10 14:59:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 275 transitions. [2018-04-10 14:59:56,446 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 275 transitions. Word has length 1111 [2018-04-10 14:59:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:56,446 INFO L459 AbstractCegarLoop]: Abstraction has 248 states and 275 transitions. [2018-04-10 14:59:56,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 14:59:56,446 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 275 transitions. [2018-04-10 14:59:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1190 [2018-04-10 14:59:56,457 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:56,458 INFO L355 BasicCegarLoop]: trace histogram [182, 169, 169, 169, 169, 169, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:56,458 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__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 14:59:56,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1396010922, now seen corresponding path program 25 times [2018-04-10 14:59:56,459 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:56,545 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:59:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 90532 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 90038 trivial. 0 not checked. [2018-04-10 14:59:57,885 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 14:59:57,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 14:59:57,885 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:59:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6552 trivial. 0 not checked. [2018-04-10 14:59:57,885 INFO L182 omatonBuilderFactory]: Interpolants [8873#true, 8874#false, 8875#(= main_~i~1 0), 8876#(<= main_~i~1 1), 8877#(<= main_~i~1 2), 8878#(<= main_~i~1 3), 8879#(<= main_~i~1 4), 8880#(<= main_~i~1 5), 8881#(<= main_~i~1 6), 8882#(<= main_~i~1 7), 8883#(<= main_~i~1 8), 8884#(<= main_~i~1 9), 8885#(<= main_~i~1 10), 8886#(<= main_~i~1 11), 8887#(<= main_~i~1 12), 8888#(<= main_~i~1 13)] [2018-04-10 14:59:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 90532 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 90038 trivial. 0 not checked. [2018-04-10 14:59:57,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 14:59:57,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 14:59:57,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-04-10 14:59:57,887 INFO L87 Difference]: Start difference. First operand 248 states and 275 transitions. Second operand 16 states. [2018-04-10 14:59:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:59:58,005 INFO L93 Difference]: Finished difference Result 336 states and 353 transitions. [2018-04-10 14:59:58,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 14:59:58,005 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1189 [2018-04-10 14:59:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:59:58,007 INFO L225 Difference]: With dead ends: 336 [2018-04-10 14:59:58,007 INFO L226 Difference]: Without dead ends: 336 [2018-04-10 14:59:58,008 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-04-10 14:59:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-04-10 14:59:58,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 259. [2018-04-10 14:59:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-04-10 14:59:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions. [2018-04-10 14:59:58,012 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 1189 [2018-04-10 14:59:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:59:58,013 INFO L459 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions. [2018-04-10 14:59:58,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 14:59:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions. [2018-04-10 14:59:58,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1280 [2018-04-10 14:59:58,021 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:59:58,021 INFO L355 BasicCegarLoop]: trace histogram [196, 182, 182, 182, 182, 182, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:59:58,021 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__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 14:59:58,022 INFO L82 PathProgramCache]: Analyzing trace with hash -601504301, now seen corresponding path program 26 times [2018-04-10 14:59:58,022 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:59:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:59:58,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 105042 backedges. 54 proven. 14417 refuted. 0 times theorem prover too weak. 90571 trivial. 0 not checked. [2018-04-10 15:00:00,167 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:00,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 15:00:00,168 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7644 backedges. 0 proven. 1079 refuted. 0 times theorem prover too weak. 6565 trivial. 0 not checked. [2018-04-10 15:00:00,168 INFO L182 omatonBuilderFactory]: Interpolants [9484#true, 9485#false, 9486#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 9487#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9488#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9489#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9490#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9491#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9492#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9493#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9494#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 9495#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9496#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9497#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 9498#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 9499#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 9500#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:00:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 105042 backedges. 54 proven. 14417 refuted. 0 times theorem prover too weak. 90571 trivial. 0 not checked. [2018-04-10 15:00:00,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 15:00:00,170 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 15:00:00,170 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:00:00,170 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand 17 states. [2018-04-10 15:00:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:00,238 INFO L93 Difference]: Finished difference Result 272 states and 301 transitions. [2018-04-10 15:00:00,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 15:00:00,239 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1279 [2018-04-10 15:00:00,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:00,239 INFO L225 Difference]: With dead ends: 272 [2018-04-10 15:00:00,239 INFO L226 Difference]: Without dead ends: 269 [2018-04-10 15:00:00,240 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:00:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-04-10 15:00:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 265. [2018-04-10 15:00:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-04-10 15:00:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 294 transitions. [2018-04-10 15:00:00,244 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 294 transitions. Word has length 1279 [2018-04-10 15:00:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:00,244 INFO L459 AbstractCegarLoop]: Abstraction has 265 states and 294 transitions. [2018-04-10 15:00:00,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 15:00:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 294 transitions. [2018-04-10 15:00:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1364 [2018-04-10 15:00:00,252 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:00,253 INFO L355 BasicCegarLoop]: trace histogram [210, 196, 196, 196, 196, 196, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:00,253 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__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 15:00:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1767243139, now seen corresponding path program 27 times [2018-04-10 15:00:00,253 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:00,317 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 121268 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 120694 trivial. 0 not checked. [2018-04-10 15:00:02,376 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:02,376 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 15:00:02,376 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8190 trivial. 0 not checked. [2018-04-10 15:00:02,376 INFO L182 omatonBuilderFactory]: Interpolants [10048#(<= main_~i~1 6), 10049#(<= main_~i~1 7), 10050#(<= main_~i~1 8), 10051#(<= main_~i~1 9), 10052#(<= main_~i~1 10), 10053#(<= main_~i~1 11), 10054#(<= main_~i~1 12), 10055#(<= main_~i~1 13), 10056#(<= main_~i~1 14), 10040#true, 10041#false, 10042#(= main_~i~1 0), 10043#(<= main_~i~1 1), 10044#(<= main_~i~1 2), 10045#(<= main_~i~1 3), 10046#(<= main_~i~1 4), 10047#(<= main_~i~1 5)] [2018-04-10 15:00:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 121268 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 120694 trivial. 0 not checked. [2018-04-10 15:00:02,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 15:00:02,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 15:00:02,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:00:02,378 INFO L87 Difference]: Start difference. First operand 265 states and 294 transitions. Second operand 17 states. [2018-04-10 15:00:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:02,487 INFO L93 Difference]: Finished difference Result 358 states and 376 transitions. [2018-04-10 15:00:02,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 15:00:02,487 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1363 [2018-04-10 15:00:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:02,489 INFO L225 Difference]: With dead ends: 358 [2018-04-10 15:00:02,489 INFO L226 Difference]: Without dead ends: 358 [2018-04-10 15:00:02,489 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:00:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-04-10 15:00:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 276. [2018-04-10 15:00:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-04-10 15:00:02,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2018-04-10 15:00:02,495 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 1363 [2018-04-10 15:00:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:02,496 INFO L459 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2018-04-10 15:00:02,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 15:00:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2018-04-10 15:00:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1460 [2018-04-10 15:00:02,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:02,511 INFO L355 BasicCegarLoop]: trace histogram [225, 210, 210, 210, 210, 210, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:02,511 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__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 15:00:02,512 INFO L82 PathProgramCache]: Analyzing trace with hash 946488628, now seen corresponding path program 28 times [2018-04-10 15:00:02,512 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:02,616 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 139260 backedges. 58 proven. 17892 refuted. 0 times theorem prover too weak. 121310 trivial. 0 not checked. [2018-04-10 15:00:05,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:05,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:00:05,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9450 backedges. 0 proven. 1246 refuted. 0 times theorem prover too weak. 8204 trivial. 0 not checked. [2018-04-10 15:00:05,104 INFO L182 omatonBuilderFactory]: Interpolants [10691#true, 10692#false, 10693#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 10694#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10695#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10696#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10697#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10698#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10699#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10700#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10701#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 10702#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10703#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10704#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 10705#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10706#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 10707#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 10708#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:00:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 139260 backedges. 58 proven. 17892 refuted. 0 times theorem prover too weak. 121310 trivial. 0 not checked. [2018-04-10 15:00:05,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:00:05,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:00:05,106 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:00:05,106 INFO L87 Difference]: Start difference. First operand 276 states and 307 transitions. Second operand 18 states. [2018-04-10 15:00:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:05,189 INFO L93 Difference]: Finished difference Result 289 states and 320 transitions. [2018-04-10 15:00:05,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 15:00:05,189 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1459 [2018-04-10 15:00:05,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:05,190 INFO L225 Difference]: With dead ends: 289 [2018-04-10 15:00:05,190 INFO L226 Difference]: Without dead ends: 286 [2018-04-10 15:00:05,190 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:00:05,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-04-10 15:00:05,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2018-04-10 15:00:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-04-10 15:00:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2018-04-10 15:00:05,194 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 1459 [2018-04-10 15:00:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:05,194 INFO L459 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2018-04-10 15:00:05,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:00:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2018-04-10 15:00:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1550 [2018-04-10 15:00:05,205 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:05,205 INFO L355 BasicCegarLoop]: trace histogram [240, 225, 225, 225, 225, 225, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:05,206 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__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 15:00:05,206 INFO L82 PathProgramCache]: Analyzing trace with hash -754671188, now seen corresponding path program 29 times [2018-04-10 15:00:05,206 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:05,276 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 159240 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 158580 trivial. 0 not checked. [2018-04-10 15:00:07,421 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:07,421 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:00:07,421 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10080 trivial. 0 not checked. [2018-04-10 15:00:07,422 INFO L182 omatonBuilderFactory]: Interpolants [11296#(<= main_~i~1 12), 11297#(<= main_~i~1 13), 11298#(<= main_~i~1 14), 11299#(<= main_~i~1 15), 11282#true, 11283#false, 11284#(= main_~i~1 0), 11285#(<= main_~i~1 1), 11286#(<= main_~i~1 2), 11287#(<= main_~i~1 3), 11288#(<= main_~i~1 4), 11289#(<= main_~i~1 5), 11290#(<= main_~i~1 6), 11291#(<= main_~i~1 7), 11292#(<= main_~i~1 8), 11293#(<= main_~i~1 9), 11294#(<= main_~i~1 10), 11295#(<= main_~i~1 11)] [2018-04-10 15:00:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 159240 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 158580 trivial. 0 not checked. [2018-04-10 15:00:07,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:00:07,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:00:07,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:00:07,424 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 18 states. [2018-04-10 15:00:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:07,544 INFO L93 Difference]: Finished difference Result 380 states and 399 transitions. [2018-04-10 15:00:07,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 15:00:07,545 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1549 [2018-04-10 15:00:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:07,546 INFO L225 Difference]: With dead ends: 380 [2018-04-10 15:00:07,547 INFO L226 Difference]: Without dead ends: 380 [2018-04-10 15:00:07,547 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:00:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-04-10 15:00:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 293. [2018-04-10 15:00:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2018-04-10 15:00:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 326 transitions. [2018-04-10 15:00:07,553 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 326 transitions. Word has length 1549 [2018-04-10 15:00:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:07,554 INFO L459 AbstractCegarLoop]: Abstraction has 293 states and 326 transitions. [2018-04-10 15:00:07,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:00:07,554 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 326 transitions. [2018-04-10 15:00:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2018-04-10 15:00:07,583 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:07,584 INFO L355 BasicCegarLoop]: trace histogram [256, 240, 240, 240, 240, 240, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:07,584 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__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 15:00:07,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1444662117, now seen corresponding path program 30 times [2018-04-10 15:00:07,585 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:07,653 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 181232 backedges. 62 proven. 21885 refuted. 0 times theorem prover too weak. 159285 trivial. 0 not checked. [2018-04-10 15:00:10,757 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:10,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:00:10,757 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 11520 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 10095 trivial. 0 not checked. [2018-04-10 15:00:10,758 INFO L182 omatonBuilderFactory]: Interpolants [11973#true, 11974#false, 11975#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 11976#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11977#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11978#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11979#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11980#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11981#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11982#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11983#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 11984#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11985#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11986#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 11987#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11988#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 11989#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11990#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 11991#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:00:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 181232 backedges. 62 proven. 21885 refuted. 0 times theorem prover too weak. 159285 trivial. 0 not checked. [2018-04-10 15:00:10,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:00:10,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:00:10,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:00:10,760 INFO L87 Difference]: Start difference. First operand 293 states and 326 transitions. Second operand 19 states. [2018-04-10 15:00:10,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:10,852 INFO L93 Difference]: Finished difference Result 306 states and 339 transitions. [2018-04-10 15:00:10,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-10 15:00:10,852 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1651 [2018-04-10 15:00:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:10,853 INFO L225 Difference]: With dead ends: 306 [2018-04-10 15:00:10,853 INFO L226 Difference]: Without dead ends: 303 [2018-04-10 15:00:10,854 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:00:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-04-10 15:00:10,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2018-04-10 15:00:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-10 15:00:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 332 transitions. [2018-04-10 15:00:10,858 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 332 transitions. Word has length 1651 [2018-04-10 15:00:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:10,859 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 332 transitions. [2018-04-10 15:00:10,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:00:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 332 transitions. [2018-04-10 15:00:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1748 [2018-04-10 15:00:10,876 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:10,877 INFO L355 BasicCegarLoop]: trace histogram [272, 256, 256, 256, 256, 256, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:10,877 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__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 15:00:10,877 INFO L82 PathProgramCache]: Analyzing trace with hash 104699365, now seen corresponding path program 31 times [2018-04-10 15:00:10,877 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:10,967 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 205504 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 204752 trivial. 0 not checked. [2018-04-10 15:00:13,888 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:13,888 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:00:13,889 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12240 trivial. 0 not checked. [2018-04-10 15:00:13,889 INFO L182 omatonBuilderFactory]: Interpolants [12608#(<= main_~i~1 7), 12609#(<= main_~i~1 8), 12610#(<= main_~i~1 9), 12611#(<= main_~i~1 10), 12612#(<= main_~i~1 11), 12613#(<= main_~i~1 12), 12614#(<= main_~i~1 13), 12615#(<= main_~i~1 14), 12616#(<= main_~i~1 15), 12617#(<= main_~i~1 16), 12599#true, 12600#false, 12601#(= main_~i~1 0), 12602#(<= main_~i~1 1), 12603#(<= main_~i~1 2), 12604#(<= main_~i~1 3), 12605#(<= main_~i~1 4), 12606#(<= main_~i~1 5), 12607#(<= main_~i~1 6)] [2018-04-10 15:00:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 205504 backedges. 0 proven. 752 refuted. 0 times theorem prover too weak. 204752 trivial. 0 not checked. [2018-04-10 15:00:13,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:00:13,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:00:13,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:00:13,892 INFO L87 Difference]: Start difference. First operand 299 states and 332 transitions. Second operand 19 states. [2018-04-10 15:00:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:14,022 INFO L93 Difference]: Finished difference Result 402 states and 422 transitions. [2018-04-10 15:00:14,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-10 15:00:14,022 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1747 [2018-04-10 15:00:14,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:14,024 INFO L225 Difference]: With dead ends: 402 [2018-04-10 15:00:14,024 INFO L226 Difference]: Without dead ends: 402 [2018-04-10 15:00:14,024 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:00:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2018-04-10 15:00:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 310. [2018-04-10 15:00:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-04-10 15:00:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 345 transitions. [2018-04-10 15:00:14,028 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 345 transitions. Word has length 1747 [2018-04-10 15:00:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:14,029 INFO L459 AbstractCegarLoop]: Abstraction has 310 states and 345 transitions. [2018-04-10 15:00:14,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:00:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 345 transitions. [2018-04-10 15:00:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1856 [2018-04-10 15:00:14,043 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:14,043 INFO L355 BasicCegarLoop]: trace histogram [289, 272, 272, 272, 272, 272, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:14,043 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__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 15:00:14,044 INFO L82 PathProgramCache]: Analyzing trace with hash -553996762, now seen corresponding path program 32 times [2018-04-10 15:00:14,044 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:14,132 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 232050 backedges. 66 proven. 26432 refuted. 0 times theorem prover too weak. 205552 trivial. 0 not checked. [2018-04-10 15:00:18,151 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:18,165 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 15:00:18,165 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 13872 backedges. 0 proven. 1616 refuted. 0 times theorem prover too weak. 12256 trivial. 0 not checked. [2018-04-10 15:00:18,165 INFO L182 omatonBuilderFactory]: Interpolants [13344#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13345#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 13346#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13347#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13348#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13349#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 13330#true, 13331#false, 13332#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 13333#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13334#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13335#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13336#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13337#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13338#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13339#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13340#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 13341#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13342#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 13343#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)))] [2018-04-10 15:00:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 232050 backedges. 66 proven. 26432 refuted. 0 times theorem prover too weak. 205552 trivial. 0 not checked. [2018-04-10 15:00:18,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:00:18,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:00:18,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:00:18,169 INFO L87 Difference]: Start difference. First operand 310 states and 345 transitions. Second operand 20 states. [2018-04-10 15:00:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:18,256 INFO L93 Difference]: Finished difference Result 323 states and 358 transitions. [2018-04-10 15:00:18,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 15:00:18,256 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1855 [2018-04-10 15:00:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:18,257 INFO L225 Difference]: With dead ends: 323 [2018-04-10 15:00:18,257 INFO L226 Difference]: Without dead ends: 320 [2018-04-10 15:00:18,257 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:00:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-04-10 15:00:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2018-04-10 15:00:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-04-10 15:00:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 351 transitions. [2018-04-10 15:00:18,263 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 351 transitions. Word has length 1855 [2018-04-10 15:00:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:18,263 INFO L459 AbstractCegarLoop]: Abstraction has 316 states and 351 transitions. [2018-04-10 15:00:18,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:00:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 351 transitions. [2018-04-10 15:00:18,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2018-04-10 15:00:18,282 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:18,282 INFO L355 BasicCegarLoop]: trace histogram [306, 289, 289, 289, 289, 289, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:18,282 INFO L408 AbstractCegarLoop]: === Iteration 39 === [__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 15:00:18,283 INFO L82 PathProgramCache]: Analyzing trace with hash 546860014, now seen corresponding path program 33 times [2018-04-10 15:00:18,283 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:18,384 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 261188 backedges. 0 proven. 850 refuted. 0 times theorem prover too weak. 260338 trivial. 0 not checked. [2018-04-10 15:00:22,021 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:22,021 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 15:00:22,021 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 14688 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14688 trivial. 0 not checked. [2018-04-10 15:00:22,022 INFO L182 omatonBuilderFactory]: Interpolants [13991#true, 13992#false, 13993#(= main_~i~1 0), 13994#(<= main_~i~1 1), 13995#(<= main_~i~1 2), 13996#(<= main_~i~1 3), 13997#(<= main_~i~1 4), 13998#(<= main_~i~1 5), 13999#(<= main_~i~1 6), 14000#(<= main_~i~1 7), 14001#(<= main_~i~1 8), 14002#(<= main_~i~1 9), 14003#(<= main_~i~1 10), 14004#(<= main_~i~1 11), 14005#(<= main_~i~1 12), 14006#(<= main_~i~1 13), 14007#(<= main_~i~1 14), 14008#(<= main_~i~1 15), 14009#(<= main_~i~1 16), 14010#(<= main_~i~1 17)] [2018-04-10 15:00:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 261188 backedges. 0 proven. 850 refuted. 0 times theorem prover too weak. 260338 trivial. 0 not checked. [2018-04-10 15:00:22,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:00:22,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:00:22,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:00:22,025 INFO L87 Difference]: Start difference. First operand 316 states and 351 transitions. Second operand 20 states. [2018-04-10 15:00:22,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:22,187 INFO L93 Difference]: Finished difference Result 424 states and 445 transitions. [2018-04-10 15:00:22,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 15:00:22,187 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1957 [2018-04-10 15:00:22,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:22,189 INFO L225 Difference]: With dead ends: 424 [2018-04-10 15:00:22,189 INFO L226 Difference]: Without dead ends: 424 [2018-04-10 15:00:22,189 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:00:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-04-10 15:00:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 327. [2018-04-10 15:00:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2018-04-10 15:00:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 364 transitions. [2018-04-10 15:00:22,193 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 364 transitions. Word has length 1957 [2018-04-10 15:00:22,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:22,194 INFO L459 AbstractCegarLoop]: Abstraction has 327 states and 364 transitions. [2018-04-10 15:00:22,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:00:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 364 transitions. [2018-04-10 15:00:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2072 [2018-04-10 15:00:22,210 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:22,210 INFO L355 BasicCegarLoop]: trace histogram [324, 306, 306, 306, 306, 306, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:22,211 INFO L408 AbstractCegarLoop]: === Iteration 40 === [__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 15:00:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1829676233, now seen corresponding path program 34 times [2018-04-10 15:00:22,211 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:22,299 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 292878 backedges. 70 proven. 31569 refuted. 0 times theorem prover too weak. 261239 trivial. 0 not checked. [2018-04-10 15:00:27,370 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:27,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-10 15:00:27,371 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 16524 backedges. 0 proven. 1819 refuted. 0 times theorem prover too weak. 14705 trivial. 0 not checked. [2018-04-10 15:00:27,371 INFO L182 omatonBuilderFactory]: Interpolants [14762#true, 14763#false, 14764#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 14765#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14766#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14767#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14768#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14769#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14770#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14771#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14772#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 14773#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14774#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14775#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 14776#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14777#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 14778#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14779#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14780#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14781#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 14782#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:00:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 292878 backedges. 70 proven. 31569 refuted. 0 times theorem prover too weak. 261239 trivial. 0 not checked. [2018-04-10 15:00:27,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-10 15:00:27,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-10 15:00:27,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:00:27,375 INFO L87 Difference]: Start difference. First operand 327 states and 364 transitions. Second operand 21 states. [2018-04-10 15:00:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:27,465 INFO L93 Difference]: Finished difference Result 340 states and 377 transitions. [2018-04-10 15:00:27,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:00:27,466 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 2071 [2018-04-10 15:00:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:27,466 INFO L225 Difference]: With dead ends: 340 [2018-04-10 15:00:27,467 INFO L226 Difference]: Without dead ends: 337 [2018-04-10 15:00:27,467 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:00:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-04-10 15:00:27,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 333. [2018-04-10 15:00:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-04-10 15:00:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 370 transitions. [2018-04-10 15:00:27,470 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 370 transitions. Word has length 2071 [2018-04-10 15:00:27,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:27,470 INFO L459 AbstractCegarLoop]: Abstraction has 333 states and 370 transitions. [2018-04-10 15:00:27,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-10 15:00:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 370 transitions. [2018-04-10 15:00:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2180 [2018-04-10 15:00:27,488 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:27,488 INFO L355 BasicCegarLoop]: trace histogram [342, 324, 324, 324, 324, 324, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:27,488 INFO L408 AbstractCegarLoop]: === Iteration 41 === [__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 15:00:27,488 INFO L82 PathProgramCache]: Analyzing trace with hash 771837319, now seen corresponding path program 35 times [2018-04-10 15:00:27,489 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:27,587 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 327492 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 326538 trivial. 0 not checked. [2018-04-10 15:00:32,269 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:32,269 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-10 15:00:32,269 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 17442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17442 trivial. 0 not checked. [2018-04-10 15:00:32,269 INFO L182 omatonBuilderFactory]: Interpolants [15458#true, 15459#false, 15460#(= main_~i~1 0), 15461#(<= main_~i~1 1), 15462#(<= main_~i~1 2), 15463#(<= main_~i~1 3), 15464#(<= main_~i~1 4), 15465#(<= main_~i~1 5), 15466#(<= main_~i~1 6), 15467#(<= main_~i~1 7), 15468#(<= main_~i~1 8), 15469#(<= main_~i~1 9), 15470#(<= main_~i~1 10), 15471#(<= main_~i~1 11), 15472#(<= main_~i~1 12), 15473#(<= main_~i~1 13), 15474#(<= main_~i~1 14), 15475#(<= main_~i~1 15), 15476#(<= main_~i~1 16), 15477#(<= main_~i~1 17), 15478#(<= main_~i~1 18)] [2018-04-10 15:00:32,273 INFO L134 CoverageAnalysis]: Checked inductivity of 327492 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 326538 trivial. 0 not checked. [2018-04-10 15:00:32,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-10 15:00:32,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-10 15:00:32,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:00:32,273 INFO L87 Difference]: Start difference. First operand 333 states and 370 transitions. Second operand 21 states. [2018-04-10 15:00:32,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:32,493 INFO L93 Difference]: Finished difference Result 446 states and 468 transitions. [2018-04-10 15:00:32,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:00:32,493 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 2179 [2018-04-10 15:00:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:32,496 INFO L225 Difference]: With dead ends: 446 [2018-04-10 15:00:32,496 INFO L226 Difference]: Without dead ends: 446 [2018-04-10 15:00:32,496 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:00:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-04-10 15:00:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 344. [2018-04-10 15:00:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-04-10 15:00:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 383 transitions. [2018-04-10 15:00:32,499 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 383 transitions. Word has length 2179 [2018-04-10 15:00:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:32,501 INFO L459 AbstractCegarLoop]: Abstraction has 344 states and 383 transitions. [2018-04-10 15:00:32,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-10 15:00:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 383 transitions. [2018-04-10 15:00:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2300 [2018-04-10 15:00:32,536 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:32,536 INFO L355 BasicCegarLoop]: trace histogram [361, 342, 342, 342, 342, 342, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:32,536 INFO L408 AbstractCegarLoop]: === Iteration 42 === [__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 15:00:32,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1752930392, now seen corresponding path program 36 times [2018-04-10 15:00:32,537 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:32,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 364952 backedges. 74 proven. 37332 refuted. 0 times theorem prover too weak. 327546 trivial. 0 not checked. [2018-04-10 15:00:39,135 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:39,135 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:00:39,136 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 19494 backedges. 0 proven. 2034 refuted. 0 times theorem prover too weak. 17460 trivial. 0 not checked. [2018-04-10 15:00:39,136 INFO L182 omatonBuilderFactory]: Interpolants [16288#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16289#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 16290#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 16269#true, 16270#false, 16271#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 16272#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16273#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16274#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16275#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16276#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16277#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16278#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16279#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 16280#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16281#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16282#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 16283#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16284#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 16285#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16286#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 16287#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 15:00:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 364952 backedges. 74 proven. 37332 refuted. 0 times theorem prover too weak. 327546 trivial. 0 not checked. [2018-04-10 15:00:39,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 15:00:39,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 15:00:39,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:00:39,141 INFO L87 Difference]: Start difference. First operand 344 states and 383 transitions. Second operand 22 states. [2018-04-10 15:00:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:39,221 INFO L93 Difference]: Finished difference Result 357 states and 396 transitions. [2018-04-10 15:00:39,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 15:00:39,222 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 2299 [2018-04-10 15:00:39,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:39,223 INFO L225 Difference]: With dead ends: 357 [2018-04-10 15:00:39,223 INFO L226 Difference]: Without dead ends: 354 [2018-04-10 15:00:39,223 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:00:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-04-10 15:00:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 350. [2018-04-10 15:00:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-04-10 15:00:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 389 transitions. [2018-04-10 15:00:39,227 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 389 transitions. Word has length 2299 [2018-04-10 15:00:39,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:39,227 INFO L459 AbstractCegarLoop]: Abstraction has 350 states and 389 transitions. [2018-04-10 15:00:39,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 15:00:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 389 transitions. [2018-04-10 15:00:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2414 [2018-04-10 15:00:39,248 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:39,249 INFO L355 BasicCegarLoop]: trace histogram [380, 361, 361, 361, 361, 361, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:39,249 INFO L408 AbstractCegarLoop]: === Iteration 43 === [__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 15:00:39,250 INFO L82 PathProgramCache]: Analyzing trace with hash 760102000, now seen corresponding path program 37 times [2018-04-10 15:00:39,250 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:39,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 405688 backedges. 0 proven. 1064 refuted. 0 times theorem prover too weak. 404624 trivial. 0 not checked. [2018-04-10 15:00:45,205 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:45,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:00:45,206 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20520 trivial. 0 not checked. [2018-04-10 15:00:45,206 INFO L182 omatonBuilderFactory]: Interpolants [17000#true, 17001#false, 17002#(= main_~i~1 0), 17003#(<= main_~i~1 1), 17004#(<= main_~i~1 2), 17005#(<= main_~i~1 3), 17006#(<= main_~i~1 4), 17007#(<= main_~i~1 5), 17008#(<= main_~i~1 6), 17009#(<= main_~i~1 7), 17010#(<= main_~i~1 8), 17011#(<= main_~i~1 9), 17012#(<= main_~i~1 10), 17013#(<= main_~i~1 11), 17014#(<= main_~i~1 12), 17015#(<= main_~i~1 13), 17016#(<= main_~i~1 14), 17017#(<= main_~i~1 15), 17018#(<= main_~i~1 16), 17019#(<= main_~i~1 17), 17020#(<= main_~i~1 18), 17021#(<= main_~i~1 19)] [2018-04-10 15:00:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 405688 backedges. 0 proven. 1064 refuted. 0 times theorem prover too weak. 404624 trivial. 0 not checked. [2018-04-10 15:00:45,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 15:00:45,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 15:00:45,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:00:45,211 INFO L87 Difference]: Start difference. First operand 350 states and 389 transitions. Second operand 22 states. [2018-04-10 15:00:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:45,384 INFO L93 Difference]: Finished difference Result 468 states and 491 transitions. [2018-04-10 15:00:45,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 15:00:45,385 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 2413 [2018-04-10 15:00:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:45,387 INFO L225 Difference]: With dead ends: 468 [2018-04-10 15:00:45,387 INFO L226 Difference]: Without dead ends: 468 [2018-04-10 15:00:45,388 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:00:45,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2018-04-10 15:00:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 361. [2018-04-10 15:00:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-04-10 15:00:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 402 transitions. [2018-04-10 15:00:45,395 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 402 transitions. Word has length 2413 [2018-04-10 15:00:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:45,396 INFO L459 AbstractCegarLoop]: Abstraction has 361 states and 402 transitions. [2018-04-10 15:00:45,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 15:00:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 402 transitions. [2018-04-10 15:00:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2540 [2018-04-10 15:00:45,421 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:45,422 INFO L355 BasicCegarLoop]: trace histogram [400, 380, 380, 380, 380, 380, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:45,422 INFO L408 AbstractCegarLoop]: === Iteration 44 === [__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 15:00:45,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1154073417, now seen corresponding path program 38 times [2018-04-10 15:00:45,423 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:45,535 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:00:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 449580 backedges. 78 proven. 43757 refuted. 0 times theorem prover too weak. 405745 trivial. 0 not checked. [2018-04-10 15:00:53,512 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:00:53,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:00:53,513 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:00:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 22800 backedges. 0 proven. 2261 refuted. 0 times theorem prover too weak. 20539 trivial. 0 not checked. [2018-04-10 15:00:53,514 INFO L182 omatonBuilderFactory]: Interpolants [17856#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17857#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17858#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17859#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17860#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17861#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 17862#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17863#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17864#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 17865#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17866#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 17867#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17868#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17869#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17870#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17871#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 17872#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 19) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17873#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 17851#true, 17852#false, 17853#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 17854#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 17855#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 15:00:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 449580 backedges. 78 proven. 43757 refuted. 0 times theorem prover too weak. 405745 trivial. 0 not checked. [2018-04-10 15:00:53,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:00:53,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:00:53,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:00:53,519 INFO L87 Difference]: Start difference. First operand 361 states and 402 transitions. Second operand 23 states. [2018-04-10 15:00:53,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:00:53,628 INFO L93 Difference]: Finished difference Result 374 states and 415 transitions. [2018-04-10 15:00:53,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 15:00:53,628 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 2539 [2018-04-10 15:00:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:00:53,629 INFO L225 Difference]: With dead ends: 374 [2018-04-10 15:00:53,629 INFO L226 Difference]: Without dead ends: 371 [2018-04-10 15:00:53,630 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:00:53,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-04-10 15:00:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 367. [2018-04-10 15:00:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2018-04-10 15:00:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 408 transitions. [2018-04-10 15:00:53,635 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 408 transitions. Word has length 2539 [2018-04-10 15:00:53,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:00:53,636 INFO L459 AbstractCegarLoop]: Abstraction has 367 states and 408 transitions. [2018-04-10 15:00:53,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:00:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 408 transitions. [2018-04-10 15:00:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2660 [2018-04-10 15:00:53,664 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:00:53,665 INFO L355 BasicCegarLoop]: trace histogram [420, 400, 400, 400, 400, 400, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:00:53,665 INFO L408 AbstractCegarLoop]: === Iteration 45 === [__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 15:00:53,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1105702295, now seen corresponding path program 39 times [2018-04-10 15:00:53,666 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:00:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:00:53,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 497120 backedges. 0 proven. 1180 refuted. 0 times theorem prover too weak. 495940 trivial. 0 not checked. [2018-04-10 15:01:01,161 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:01,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:01:01,161 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 23940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23940 trivial. 0 not checked. [2018-04-10 15:01:01,162 INFO L182 omatonBuilderFactory]: Interpolants [18624#(<= main_~i~1 5), 18625#(<= main_~i~1 6), 18626#(<= main_~i~1 7), 18627#(<= main_~i~1 8), 18628#(<= main_~i~1 9), 18629#(<= main_~i~1 10), 18630#(<= main_~i~1 11), 18631#(<= main_~i~1 12), 18632#(<= main_~i~1 13), 18633#(<= main_~i~1 14), 18634#(<= main_~i~1 15), 18635#(<= main_~i~1 16), 18636#(<= main_~i~1 17), 18637#(<= main_~i~1 18), 18638#(<= main_~i~1 19), 18639#(<= main_~i~1 20), 18617#true, 18618#false, 18619#(= main_~i~1 0), 18620#(<= main_~i~1 1), 18621#(<= main_~i~1 2), 18622#(<= main_~i~1 3), 18623#(<= main_~i~1 4)] [2018-04-10 15:01:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 497120 backedges. 0 proven. 1180 refuted. 0 times theorem prover too weak. 495940 trivial. 0 not checked. [2018-04-10 15:01:01,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:01:01,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:01:01,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:01:01,167 INFO L87 Difference]: Start difference. First operand 367 states and 408 transitions. Second operand 23 states. [2018-04-10 15:01:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:01,368 INFO L93 Difference]: Finished difference Result 490 states and 514 transitions. [2018-04-10 15:01:01,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 15:01:01,369 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 2659 [2018-04-10 15:01:01,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:01,371 INFO L225 Difference]: With dead ends: 490 [2018-04-10 15:01:01,371 INFO L226 Difference]: Without dead ends: 490 [2018-04-10 15:01:01,371 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:01:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-04-10 15:01:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 378. [2018-04-10 15:01:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-04-10 15:01:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 421 transitions. [2018-04-10 15:01:01,376 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 421 transitions. Word has length 2659 [2018-04-10 15:01:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:01,377 INFO L459 AbstractCegarLoop]: Abstraction has 378 states and 421 transitions. [2018-04-10 15:01:01,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:01:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 421 transitions. [2018-04-10 15:01:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2792 [2018-04-10 15:01:01,420 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:01,421 INFO L355 BasicCegarLoop]: trace histogram [441, 420, 420, 420, 420, 420, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:01,421 INFO L408 AbstractCegarLoop]: === Iteration 46 === [__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 15:01:01,421 INFO L82 PathProgramCache]: Analyzing trace with hash -737668662, now seen corresponding path program 40 times [2018-04-10 15:01:01,422 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:01:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:01:01,591 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 548142 backedges. 82 proven. 50880 refuted. 0 times theorem prover too weak. 497180 trivial. 0 not checked. [2018-04-10 15:01:11,497 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:11,497 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:01:11,497 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 26460 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 23960 trivial. 0 not checked. [2018-04-10 15:01:11,498 INFO L182 omatonBuilderFactory]: Interpolants [19520#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19521#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 19522#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19523#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 19524#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19525#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19526#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19527#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19528#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 19529#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 19) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19530#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 20) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19531#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 19508#true, 19509#false, 19510#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 19511#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19512#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19513#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19514#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19515#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19516#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19517#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 19518#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 19519#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 15:01:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 548142 backedges. 82 proven. 50880 refuted. 0 times theorem prover too weak. 497180 trivial. 0 not checked. [2018-04-10 15:01:11,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 15:01:11,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 15:01:11,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:01:11,504 INFO L87 Difference]: Start difference. First operand 378 states and 421 transitions. Second operand 24 states. [2018-04-10 15:01:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:11,593 INFO L93 Difference]: Finished difference Result 391 states and 434 transitions. [2018-04-10 15:01:11,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 15:01:11,594 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 2791 [2018-04-10 15:01:11,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:11,595 INFO L225 Difference]: With dead ends: 391 [2018-04-10 15:01:11,595 INFO L226 Difference]: Without dead ends: 388 [2018-04-10 15:01:11,595 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:01:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-10 15:01:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 384. [2018-04-10 15:01:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-04-10 15:01:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions. [2018-04-10 15:01:11,598 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 2791 [2018-04-10 15:01:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:11,599 INFO L459 AbstractCegarLoop]: Abstraction has 384 states and 427 transitions. [2018-04-10 15:01:11,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 15:01:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions. [2018-04-10 15:01:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2918 [2018-04-10 15:01:11,629 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:11,630 INFO L355 BasicCegarLoop]: trace histogram [462, 441, 441, 441, 441, 441, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:11,630 INFO L408 AbstractCegarLoop]: === Iteration 47 === [__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 15:01:11,630 INFO L82 PathProgramCache]: Analyzing trace with hash -180289230, now seen corresponding path program 41 times [2018-04-10 15:01:11,631 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:01:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:01:11,765 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 603204 backedges. 0 proven. 1302 refuted. 0 times theorem prover too weak. 601902 trivial. 0 not checked. [2018-04-10 15:01:20,953 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:20,954 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:01:20,954 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 27720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27720 trivial. 0 not checked. [2018-04-10 15:01:20,954 INFO L182 omatonBuilderFactory]: Interpolants [20320#(<= main_~i~1 9), 20321#(<= main_~i~1 10), 20322#(<= main_~i~1 11), 20323#(<= main_~i~1 12), 20324#(<= main_~i~1 13), 20325#(<= main_~i~1 14), 20326#(<= main_~i~1 15), 20327#(<= main_~i~1 16), 20328#(<= main_~i~1 17), 20329#(<= main_~i~1 18), 20330#(<= main_~i~1 19), 20331#(<= main_~i~1 20), 20332#(<= main_~i~1 21), 20309#true, 20310#false, 20311#(= main_~i~1 0), 20312#(<= main_~i~1 1), 20313#(<= main_~i~1 2), 20314#(<= main_~i~1 3), 20315#(<= main_~i~1 4), 20316#(<= main_~i~1 5), 20317#(<= main_~i~1 6), 20318#(<= main_~i~1 7), 20319#(<= main_~i~1 8)] [2018-04-10 15:01:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 603204 backedges. 0 proven. 1302 refuted. 0 times theorem prover too weak. 601902 trivial. 0 not checked. [2018-04-10 15:01:20,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 15:01:20,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 15:01:20,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:01:20,961 INFO L87 Difference]: Start difference. First operand 384 states and 427 transitions. Second operand 24 states. [2018-04-10 15:01:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:21,192 INFO L93 Difference]: Finished difference Result 512 states and 537 transitions. [2018-04-10 15:01:21,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 15:01:21,193 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 2917 [2018-04-10 15:01:21,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:21,195 INFO L225 Difference]: With dead ends: 512 [2018-04-10 15:01:21,195 INFO L226 Difference]: Without dead ends: 512 [2018-04-10 15:01:21,195 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:01:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2018-04-10 15:01:21,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 395. [2018-04-10 15:01:21,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-04-10 15:01:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 440 transitions. [2018-04-10 15:01:21,199 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 440 transitions. Word has length 2917 [2018-04-10 15:01:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:21,200 INFO L459 AbstractCegarLoop]: Abstraction has 395 states and 440 transitions. [2018-04-10 15:01:21,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 15:01:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 440 transitions. [2018-04-10 15:01:21,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3056 [2018-04-10 15:01:21,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:21,234 INFO L355 BasicCegarLoop]: trace histogram [484, 462, 462, 462, 462, 462, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:21,234 INFO L408 AbstractCegarLoop]: === Iteration 48 === [__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 15:01:21,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1406021221, now seen corresponding path program 42 times [2018-04-10 15:01:21,235 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:01:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:01:21,378 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 662090 backedges. 86 proven. 58737 refuted. 0 times theorem prover too weak. 603267 trivial. 0 not checked. [2018-04-10 15:01:33,526 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:33,526 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 15:01:33,526 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 30492 backedges. 0 proven. 2751 refuted. 0 times theorem prover too weak. 27741 trivial. 0 not checked. [2018-04-10 15:01:33,527 INFO L182 omatonBuilderFactory]: Interpolants [21248#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21249#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21250#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 21251#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21252#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21253#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 21254#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21255#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 21256#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21257#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21258#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21259#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21260#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 21261#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 19) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21262#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 20) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21263#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 21) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21264#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32)), 21240#true, 21241#false, 21242#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 21243#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21244#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21245#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21246#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 21247#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))))] [2018-04-10 15:01:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 662090 backedges. 86 proven. 58737 refuted. 0 times theorem prover too weak. 603267 trivial. 0 not checked. [2018-04-10 15:01:33,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:01:33,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:01:33,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:01:33,534 INFO L87 Difference]: Start difference. First operand 395 states and 440 transitions. Second operand 25 states. [2018-04-10 15:01:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:33,644 INFO L93 Difference]: Finished difference Result 408 states and 453 transitions. [2018-04-10 15:01:33,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 15:01:33,644 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 3055 [2018-04-10 15:01:33,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:33,645 INFO L225 Difference]: With dead ends: 408 [2018-04-10 15:01:33,645 INFO L226 Difference]: Without dead ends: 405 [2018-04-10 15:01:33,646 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:01:33,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2018-04-10 15:01:33,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2018-04-10 15:01:33,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2018-04-10 15:01:33,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 446 transitions. [2018-04-10 15:01:33,650 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 446 transitions. Word has length 3055 [2018-04-10 15:01:33,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:33,650 INFO L459 AbstractCegarLoop]: Abstraction has 401 states and 446 transitions. [2018-04-10 15:01:33,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:01:33,650 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 446 transitions. [2018-04-10 15:01:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3188 [2018-04-10 15:01:33,686 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:33,687 INFO L355 BasicCegarLoop]: trace histogram [506, 484, 484, 484, 484, 484, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:33,687 INFO L408 AbstractCegarLoop]: === Iteration 49 === [__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 15:01:33,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1215606133, now seen corresponding path program 43 times [2018-04-10 15:01:33,688 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:01:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:01:33,846 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 725428 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 723998 trivial. 0 not checked. [2018-04-10 15:01:44,924 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:44,924 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 15:01:44,924 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 31878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31878 trivial. 0 not checked. [2018-04-10 15:01:44,925 INFO L182 omatonBuilderFactory]: Interpolants [22080#(<= main_~i~1 2), 22081#(<= main_~i~1 3), 22082#(<= main_~i~1 4), 22083#(<= main_~i~1 5), 22084#(<= main_~i~1 6), 22085#(<= main_~i~1 7), 22086#(<= main_~i~1 8), 22087#(<= main_~i~1 9), 22088#(<= main_~i~1 10), 22089#(<= main_~i~1 11), 22090#(<= main_~i~1 12), 22091#(<= main_~i~1 13), 22092#(<= main_~i~1 14), 22093#(<= main_~i~1 15), 22094#(<= main_~i~1 16), 22095#(<= main_~i~1 17), 22096#(<= main_~i~1 18), 22097#(<= main_~i~1 19), 22098#(<= main_~i~1 20), 22099#(<= main_~i~1 21), 22100#(<= main_~i~1 22), 22076#true, 22077#false, 22078#(= main_~i~1 0), 22079#(<= main_~i~1 1)] [2018-04-10 15:01:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 725428 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 723998 trivial. 0 not checked. [2018-04-10 15:01:44,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:01:44,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:01:44,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:01:44,932 INFO L87 Difference]: Start difference. First operand 401 states and 446 transitions. Second operand 25 states. [2018-04-10 15:01:45,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:45,149 INFO L93 Difference]: Finished difference Result 534 states and 560 transitions. [2018-04-10 15:01:45,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 15:01:45,149 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 3187 [2018-04-10 15:01:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:45,152 INFO L225 Difference]: With dead ends: 534 [2018-04-10 15:01:45,152 INFO L226 Difference]: Without dead ends: 534 [2018-04-10 15:01:45,152 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:01:45,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2018-04-10 15:01:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 412. [2018-04-10 15:01:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2018-04-10 15:01:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 459 transitions. [2018-04-10 15:01:45,157 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 459 transitions. Word has length 3187 [2018-04-10 15:01:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:45,158 INFO L459 AbstractCegarLoop]: Abstraction has 412 states and 459 transitions. [2018-04-10 15:01:45,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:01:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 459 transitions. [2018-04-10 15:01:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3332 [2018-04-10 15:01:45,197 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:45,197 INFO L355 BasicCegarLoop]: trace histogram [529, 506, 506, 506, 506, 506, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:45,197 INFO L408 AbstractCegarLoop]: === Iteration 50 === [__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 15:01:45,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1457039484, now seen corresponding path program 44 times [2018-04-10 15:01:45,199 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:01:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:01:45,359 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:01:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 792948 backedges. 90 proven. 67364 refuted. 0 times theorem prover too weak. 725494 trivial. 0 not checked. [2018-04-10 15:01:59,764 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:01:59,764 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:01:59,764 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:01:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 34914 backedges. 0 proven. 3014 refuted. 0 times theorem prover too weak. 31900 trivial. 0 not checked. [2018-04-10 15:01:59,765 INFO L182 omatonBuilderFactory]: Interpolants [23047#true, 23048#false, 23049#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 23050#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23051#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23052#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23053#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23054#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23055#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23056#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23057#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 23058#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23059#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23060#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 23061#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23062#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 23063#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23064#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23065#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23066#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23067#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 23068#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 19) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23069#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 20) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23070#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 21) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23071#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 22) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 23072#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:01:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 792948 backedges. 90 proven. 67364 refuted. 0 times theorem prover too weak. 725494 trivial. 0 not checked. [2018-04-10 15:01:59,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:01:59,773 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:01:59,773 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:01:59,773 INFO L87 Difference]: Start difference. First operand 412 states and 459 transitions. Second operand 26 states. [2018-04-10 15:01:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:01:59,885 INFO L93 Difference]: Finished difference Result 425 states and 472 transitions. [2018-04-10 15:01:59,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-10 15:01:59,886 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 3331 [2018-04-10 15:01:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:01:59,887 INFO L225 Difference]: With dead ends: 425 [2018-04-10 15:01:59,888 INFO L226 Difference]: Without dead ends: 422 [2018-04-10 15:01:59,888 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:01:59,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2018-04-10 15:01:59,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 418. [2018-04-10 15:01:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-04-10 15:01:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 465 transitions. [2018-04-10 15:01:59,892 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 465 transitions. Word has length 3331 [2018-04-10 15:01:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:01:59,892 INFO L459 AbstractCegarLoop]: Abstraction has 418 states and 465 transitions. [2018-04-10 15:01:59,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:01:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 465 transitions. [2018-04-10 15:01:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3470 [2018-04-10 15:01:59,935 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:01:59,936 INFO L355 BasicCegarLoop]: trace histogram [552, 529, 529, 529, 529, 529, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:01:59,936 INFO L408 AbstractCegarLoop]: === Iteration 51 === [__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 15:01:59,937 INFO L82 PathProgramCache]: Analyzing trace with hash 733030452, now seen corresponding path program 45 times [2018-04-10 15:01:59,937 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:02:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:02:00,120 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:02:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 865352 backedges. 0 proven. 1564 refuted. 0 times theorem prover too weak. 863788 trivial. 0 not checked. [2018-04-10 15:02:13,723 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:02:13,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:02:13,723 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:02:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 36432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36432 trivial. 0 not checked. [2018-04-10 15:02:13,724 INFO L182 omatonBuilderFactory]: Interpolants [23936#(<= main_~i~1 16), 23937#(<= main_~i~1 17), 23938#(<= main_~i~1 18), 23939#(<= main_~i~1 19), 23940#(<= main_~i~1 20), 23941#(<= main_~i~1 21), 23942#(<= main_~i~1 22), 23943#(<= main_~i~1 23), 23918#true, 23919#false, 23920#(= main_~i~1 0), 23921#(<= main_~i~1 1), 23922#(<= main_~i~1 2), 23923#(<= main_~i~1 3), 23924#(<= main_~i~1 4), 23925#(<= main_~i~1 5), 23926#(<= main_~i~1 6), 23927#(<= main_~i~1 7), 23928#(<= main_~i~1 8), 23929#(<= main_~i~1 9), 23930#(<= main_~i~1 10), 23931#(<= main_~i~1 11), 23932#(<= main_~i~1 12), 23933#(<= main_~i~1 13), 23934#(<= main_~i~1 14), 23935#(<= main_~i~1 15)] [2018-04-10 15:02:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 865352 backedges. 0 proven. 1564 refuted. 0 times theorem prover too weak. 863788 trivial. 0 not checked. [2018-04-10 15:02:13,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:02:13,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:02:13,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:02:13,732 INFO L87 Difference]: Start difference. First operand 418 states and 465 transitions. Second operand 26 states. [2018-04-10 15:02:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:02:13,938 INFO L93 Difference]: Finished difference Result 556 states and 583 transitions. [2018-04-10 15:02:13,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-10 15:02:13,938 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 3469 [2018-04-10 15:02:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:02:13,941 INFO L225 Difference]: With dead ends: 556 [2018-04-10 15:02:13,941 INFO L226 Difference]: Without dead ends: 556 [2018-04-10 15:02:13,942 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:02:13,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-04-10 15:02:13,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 429. [2018-04-10 15:02:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2018-04-10 15:02:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2018-04-10 15:02:13,946 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 3469 [2018-04-10 15:02:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:02:13,947 INFO L459 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2018-04-10 15:02:13,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:02:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2018-04-10 15:02:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3620 [2018-04-10 15:02:13,993 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:02:13,994 INFO L355 BasicCegarLoop]: trace histogram [576, 552, 552, 552, 552, 552, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:02:13,994 INFO L408 AbstractCegarLoop]: === Iteration 52 === [__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 15:02:13,995 INFO L82 PathProgramCache]: Analyzing trace with hash 541578285, now seen corresponding path program 46 times [2018-04-10 15:02:13,995 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:02:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:02:14,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:02:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 942312 backedges. 94 proven. 76797 refuted. 0 times theorem prover too weak. 865421 trivial. 0 not checked. [2018-04-10 15:02:32,256 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:02:32,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:02:32,256 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:02:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 39744 backedges. 0 proven. 3289 refuted. 0 times theorem prover too weak. 36455 trivial. 0 not checked. [2018-04-10 15:02:32,257 INFO L182 omatonBuilderFactory]: Interpolants [24929#true, 24930#false, 24931#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 0)), 24932#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 1) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24933#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 2) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24934#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 3) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24935#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 4) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24936#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 5) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24937#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 6) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24938#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 7) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24939#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 8) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 24940#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 9) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24941#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 10) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24942#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 11) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 24943#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 12) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24944#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 13) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 24945#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 14) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24946#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 15) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24947#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 16) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24948#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 17) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24949#(and (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 18) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32))) (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size))), 24950#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 19) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24951#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 20) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24952#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 21) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24953#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 22) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24954#(and (or (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32) (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size)) (or (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 23) (not (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size 32)))), 24955#(not (= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size| 32))] [2018-04-10 15:02:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 942312 backedges. 94 proven. 76797 refuted. 0 times theorem prover too weak. 865421 trivial. 0 not checked. [2018-04-10 15:02:32,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:02:32,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:02:32,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:02:32,267 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 27 states. [2018-04-10 15:02:32,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:02:32,399 INFO L93 Difference]: Finished difference Result 442 states and 491 transitions. [2018-04-10 15:02:32,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 15:02:32,399 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 3619 [2018-04-10 15:02:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:02:32,400 INFO L225 Difference]: With dead ends: 442 [2018-04-10 15:02:32,400 INFO L226 Difference]: Without dead ends: 439 [2018-04-10 15:02:32,400 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:02:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-04-10 15:02:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 435. [2018-04-10 15:02:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2018-04-10 15:02:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 484 transitions. [2018-04-10 15:02:32,404 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 484 transitions. Word has length 3619 [2018-04-10 15:02:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:02:32,404 INFO L459 AbstractCegarLoop]: Abstraction has 435 states and 484 transitions. [2018-04-10 15:02:32,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:02:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 484 transitions. [2018-04-10 15:02:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3764 [2018-04-10 15:02:32,453 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:02:32,454 INFO L355 BasicCegarLoop]: trace histogram [600, 576, 576, 576, 576, 576, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:02:32,454 INFO L408 AbstractCegarLoop]: === Iteration 53 === [__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 15:02:32,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1465678829, now seen corresponding path program 47 times [2018-04-10 15:02:32,455 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:02:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:02:32,655 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:02:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1024608 backedges. 0 proven. 1704 refuted. 0 times theorem prover too weak. 1022904 trivial. 0 not checked. [2018-04-10 15:02:48,488 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:02:48,488 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:02:48,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:02:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 41400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41400 trivial. 0 not checked. [2018-04-10 15:02:48,490 INFO L182 omatonBuilderFactory]: Interpolants [25856#(<= main_~i~1 19), 25857#(<= main_~i~1 20), 25858#(<= main_~i~1 21), 25859#(<= main_~i~1 22), 25860#(<= main_~i~1 23), 25861#(<= main_~i~1 24), 25835#true, 25836#false, 25837#(= main_~i~1 0), 25838#(<= main_~i~1 1), 25839#(<= main_~i~1 2), 25840#(<= main_~i~1 3), 25841#(<= main_~i~1 4), 25842#(<= main_~i~1 5), 25843#(<= main_~i~1 6), 25844#(<= main_~i~1 7), 25845#(<= main_~i~1 8), 25846#(<= main_~i~1 9), 25847#(<= main_~i~1 10), 25848#(<= main_~i~1 11), 25849#(<= main_~i~1 12), 25850#(<= main_~i~1 13), 25851#(<= main_~i~1 14), 25852#(<= main_~i~1 15), 25853#(<= main_~i~1 16), 25854#(<= main_~i~1 17), 25855#(<= main_~i~1 18)] [2018-04-10 15:02:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1024608 backedges. 0 proven. 1704 refuted. 0 times theorem prover too weak. 1022904 trivial. 0 not checked. [2018-04-10 15:02:48,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:02:48,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:02:48,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:02:48,499 INFO L87 Difference]: Start difference. First operand 435 states and 484 transitions. Second operand 27 states. [2018-04-10 15:02:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:02:48,707 INFO L93 Difference]: Finished difference Result 578 states and 606 transitions. [2018-04-10 15:02:48,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 15:02:48,707 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 3763 [2018-04-10 15:02:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:02:48,710 INFO L225 Difference]: With dead ends: 578 [2018-04-10 15:02:48,710 INFO L226 Difference]: Without dead ends: 578 [2018-04-10 15:02:48,711 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:02:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2018-04-10 15:02:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 446. [2018-04-10 15:02:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-04-10 15:02:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 497 transitions. [2018-04-10 15:02:48,716 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 497 transitions. Word has length 3763 [2018-04-10 15:02:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:02:48,718 INFO L459 AbstractCegarLoop]: Abstraction has 446 states and 497 transitions. [2018-04-10 15:02:48,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:02:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 497 transitions. [2018-04-10 15:02:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3920 [2018-04-10 15:02:48,769 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:02:48,769 INFO L355 BasicCegarLoop]: trace histogram [625, 600, 600, 600, 600, 600, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:02:48,770 INFO L408 AbstractCegarLoop]: === Iteration 54 === [__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 15:02:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1670682002, now seen corresponding path program 48 times [2018-04-10 15:02:48,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:02:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:02:48,975 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... [2018-04-10 15:02:49,903 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:235) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$0(Interpolator.java:233) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:130) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:918) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:203) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-10 15:02:49,906 INFO L168 Benchmark]: Toolchain (without parser) took 188832.61 ms. Allocated memory was 395.3 MB in the beginning and 2.7 GB in the end (delta: 2.3 GB). Free memory was 336.3 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.3 GB. Max. memory is 5.3 GB. [2018-04-10 15:02:49,907 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 395.3 MB. Free memory is still 358.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 15:02:49,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.24 ms. Allocated memory is still 395.3 MB. Free memory was 336.3 MB in the beginning and 325.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 15:02:49,908 INFO L168 Benchmark]: Boogie Preprocessor took 24.89 ms. Allocated memory is still 395.3 MB. Free memory was 325.7 MB in the beginning and 324.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-10 15:02:49,908 INFO L168 Benchmark]: RCFGBuilder took 263.70 ms. Allocated memory was 395.3 MB in the beginning and 591.9 MB in the end (delta: 196.6 MB). Free memory was 324.4 MB in the beginning and 554.1 MB in the end (delta: -229.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 5.3 GB. [2018-04-10 15:02:49,908 INFO L168 Benchmark]: TraceAbstraction took 188374.81 ms. Allocated memory was 591.9 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 554.1 MB in the beginning and 1.3 GB in the end (delta: -793.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 5.3 GB. [2018-04-10 15:02:49,909 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 395.3 MB. Free memory is still 358.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 166.24 ms. Allocated memory is still 395.3 MB. Free memory was 336.3 MB in the beginning and 325.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.89 ms. Allocated memory is still 395.3 MB. Free memory was 325.7 MB in the beginning and 324.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 263.70 ms. Allocated memory was 395.3 MB in the beginning and 591.9 MB in the end (delta: 196.6 MB). Free memory was 324.4 MB in the beginning and 554.1 MB in the end (delta: -229.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 188374.81 ms. Allocated memory was 591.9 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 554.1 MB in the beginning and 1.3 GB in the end (delta: -793.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_15-02-49-914.csv Completed graceful shutdown