java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 18:20:55,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 18:20:55,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 18:20:55,577 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 18:20:55,578 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 18:20:55,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 18:20:55,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 18:20:55,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 18:20:55,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 18:20:55,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 18:20:55,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 18:20:55,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 18:20:55,585 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 18:20:55,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 18:20:55,587 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 18:20:55,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 18:20:55,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 18:20:55,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 18:20:55,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 18:20:55,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 18:20:55,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 18:20:55,596 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 18:20:55,597 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 18:20:55,598 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 18:20:55,598 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 18:20:55,599 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 18:20:55,599 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 18:20:55,600 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 18:20:55,600 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 18:20:55,600 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 18:20:55,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 18:20:55,601 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 18:20:55,612 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 18:20:55,612 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 18:20:55,613 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 18:20:55,613 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 18:20:55,613 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 18:20:55,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 18:20:55,614 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 18:20:55,615 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 18:20:55,615 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 18:20:55,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 18:20:55,615 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 18:20:55,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 18:20:55,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:20:55,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 18:20:55,616 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 18:20:55,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 18:20:55,658 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 18:20:55,661 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 18:20:55,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 18:20:55,663 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 18:20:55,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:20:55,797 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 18:20:55,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 18:20:55,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 18:20:55,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 18:20:55,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 18:20:55,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f34542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55, skipping insertion in model container [2018-02-02 18:20:55,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,822 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:20:55,850 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:20:55,952 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:20:55,965 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:20:55,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55 WrapperNode [2018-02-02 18:20:55,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 18:20:55,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 18:20:55,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 18:20:55,969 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 18:20:55,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... [2018-02-02 18:20:55,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 18:20:55,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 18:20:55,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 18:20:55,992 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 18:20:55,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:20:56,029 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 18:20:56,029 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 18:20:56,029 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-02-02 18:20:56,029 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 18:20:56,029 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-02-02 18:20:56,030 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 18:20:56,031 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 18:20:56,031 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 18:20:56,179 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 18:20:56,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:20:56 BoogieIcfgContainer [2018-02-02 18:20:56,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 18:20:56,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 18:20:56,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 18:20:56,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 18:20:56,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 06:20:55" (1/3) ... [2018-02-02 18:20:56,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde5ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:20:56, skipping insertion in model container [2018-02-02 18:20:56,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:20:55" (2/3) ... [2018-02-02 18:20:56,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde5ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:20:56, skipping insertion in model container [2018-02-02 18:20:56,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:20:56" (3/3) ... [2018-02-02 18:20:56,184 INFO L107 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-02-02 18:20:56,189 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 18:20:56,193 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-02-02 18:20:56,223 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 18:20:56,223 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 18:20:56,223 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 18:20:56,223 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 18:20:56,223 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 18:20:56,223 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 18:20:56,223 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 18:20:56,224 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 18:20:56,224 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 18:20:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-02-02 18:20:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 18:20:56,241 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:56,242 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:56,242 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393893, now seen corresponding path program 1 times [2018-02-02 18:20:56,248 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:56,249 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:56,278 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,279 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:56,279 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:56,324 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:56,408 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:20:56,408 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:20:56,409 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 18:20:56,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 18:20:56,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:20:56,421 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2018-02-02 18:20:56,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:56,579 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-02-02 18:20:56,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 18:20:56,629 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-02 18:20:56,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:56,645 INFO L225 Difference]: With dead ends: 44 [2018-02-02 18:20:56,645 INFO L226 Difference]: Without dead ends: 41 [2018-02-02 18:20:56,647 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:20:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-02 18:20:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-02 18:20:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-02 18:20:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-02-02 18:20:56,670 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2018-02-02 18:20:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:56,670 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-02-02 18:20:56,670 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 18:20:56,670 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-02-02 18:20:56,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 18:20:56,671 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:56,671 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:56,671 INFO L371 AbstractCegarLoop]: === Iteration 2 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:56,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393894, now seen corresponding path program 1 times [2018-02-02 18:20:56,671 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:56,672 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:56,672 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,673 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:56,673 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:56,687 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:56,773 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:20:56,773 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 18:20:56,775 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 18:20:56,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 18:20:56,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 18:20:56,776 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-02-02 18:20:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:56,887 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-02-02 18:20:56,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 18:20:56,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-02 18:20:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:56,890 INFO L225 Difference]: With dead ends: 60 [2018-02-02 18:20:56,890 INFO L226 Difference]: Without dead ends: 60 [2018-02-02 18:20:56,890 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-02-02 18:20:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-02 18:20:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2018-02-02 18:20:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-02 18:20:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2018-02-02 18:20:56,896 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 14 [2018-02-02 18:20:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:56,896 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2018-02-02 18:20:56,897 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 18:20:56,897 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2018-02-02 18:20:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 18:20:56,897 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:56,897 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:56,898 INFO L371 AbstractCegarLoop]: === Iteration 3 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:56,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1978668179, now seen corresponding path program 1 times [2018-02-02 18:20:56,898 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:56,898 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:56,899 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,899 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:56,899 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:56,912 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:56,935 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:20:56,935 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:20:56,935 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 18:20:56,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 18:20:56,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:20:56,936 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 5 states. [2018-02-02 18:20:56,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:56,982 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-02-02 18:20:56,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:20:56,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 18:20:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:56,983 INFO L225 Difference]: With dead ends: 60 [2018-02-02 18:20:56,983 INFO L226 Difference]: Without dead ends: 58 [2018-02-02 18:20:56,983 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:20:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-02-02 18:20:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2018-02-02 18:20:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-02 18:20:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-02-02 18:20:56,986 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 18 [2018-02-02 18:20:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:56,986 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-02-02 18:20:56,986 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 18:20:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-02-02 18:20:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 18:20:56,987 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:56,987 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:56,987 INFO L371 AbstractCegarLoop]: === Iteration 4 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:56,987 INFO L82 PathProgramCache]: Analyzing trace with hash 35069262, now seen corresponding path program 1 times [2018-02-02 18:20:56,987 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:56,987 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:56,988 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,988 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:56,988 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:56,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:57,071 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:20:57,072 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 18:20:57,085 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:57,111 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:20:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:57,187 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-02 18:20:57,187 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2018-02-02 18:20:57,187 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-02 18:20:57,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-02 18:20:57,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-02-02 18:20:57,188 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 12 states. [2018-02-02 18:20:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:57,327 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2018-02-02 18:20:57,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:20:57,327 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-02-02 18:20:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:57,328 INFO L225 Difference]: With dead ends: 86 [2018-02-02 18:20:57,328 INFO L226 Difference]: Without dead ends: 86 [2018-02-02 18:20:57,329 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-02-02 18:20:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-02-02 18:20:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-02-02 18:20:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-02-02 18:20:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-02-02 18:20:57,333 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 23 [2018-02-02 18:20:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:57,333 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-02-02 18:20:57,333 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-02 18:20:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-02-02 18:20:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 18:20:57,333 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:57,333 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:20:57,333 INFO L371 AbstractCegarLoop]: === Iteration 5 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1553278640, now seen corresponding path program 1 times [2018-02-02 18:20:57,334 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:57,334 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:57,334 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:57,334 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:57,334 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:57,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:57,430 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 18:20:57,431 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 18:20:57,436 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:57,449 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 18:20:57,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-02 18:20:57,469 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 18:20:57,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 18:20:57,472 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-02 18:20:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:20:57,602 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 18:20:57,602 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2018-02-02 18:20:57,602 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-02 18:20:57,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-02 18:20:57,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-02-02 18:20:57,603 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 13 states. [2018-02-02 18:20:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:57,759 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2018-02-02 18:20:57,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 18:20:57,759 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-02-02 18:20:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:57,760 INFO L225 Difference]: With dead ends: 76 [2018-02-02 18:20:57,760 INFO L226 Difference]: Without dead ends: 76 [2018-02-02 18:20:57,760 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-02-02 18:20:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-02-02 18:20:57,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 61. [2018-02-02 18:20:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-02-02 18:20:57,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-02-02 18:20:57,766 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 23 [2018-02-02 18:20:57,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:57,767 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-02-02 18:20:57,767 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-02 18:20:57,768 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-02-02 18:20:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 18:20:57,768 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:20:57,768 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-02 18:20:57,768 INFO L371 AbstractCegarLoop]: === Iteration 6 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 18:20:57,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1156880581, now seen corresponding path program 1 times [2018-02-02 18:20:57,769 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:20:57,769 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:20:57,770 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:57,770 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:20:57,770 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:20:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:20:57,783 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:20:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 18:20:57,822 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:20:57,822 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 18:20:57,823 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 18:20:57,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 18:20:57,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 18:20:57,823 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 4 states. [2018-02-02 18:20:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:20:57,875 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-02-02 18:20:57,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:20:57,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-02-02 18:20:57,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:20:57,876 INFO L225 Difference]: With dead ends: 60 [2018-02-02 18:20:57,876 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 18:20:57,876 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:20:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 18:20:57,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 18:20:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 18:20:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 18:20:57,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-02-02 18:20:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:20:57,877 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 18:20:57,877 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 18:20:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 18:20:57,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 18:20:57,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 06:20:57 BoogieIcfgContainer [2018-02-02 18:20:57,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 18:20:57,881 INFO L168 Benchmark]: Toolchain (without parser) took 2082.94 ms. Allocated memory was 400.6 MB in the beginning and 627.6 MB in the end (delta: 227.0 MB). Free memory was 358.6 MB in the beginning and 560.3 MB in the end (delta: -201.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-02-02 18:20:57,881 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 400.6 MB. Free memory is still 363.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:20:57,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.68 ms. Allocated memory is still 400.6 MB. Free memory was 357.3 MB in the beginning and 346.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 18:20:57,882 INFO L168 Benchmark]: Boogie Preprocessor took 22.29 ms. Allocated memory is still 400.6 MB. Free memory was 346.7 MB in the beginning and 345.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 18:20:57,882 INFO L168 Benchmark]: RCFGBuilder took 188.18 ms. Allocated memory is still 400.6 MB. Free memory was 345.4 MB in the beginning and 325.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-02-02 18:20:57,882 INFO L168 Benchmark]: TraceAbstraction took 1700.06 ms. Allocated memory was 400.6 MB in the beginning and 627.6 MB in the end (delta: 227.0 MB). Free memory was 325.5 MB in the beginning and 560.3 MB in the end (delta: -234.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:20:57,883 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 400.6 MB. Free memory is still 363.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 169.68 ms. Allocated memory is still 400.6 MB. Free memory was 357.3 MB in the beginning and 346.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.29 ms. Allocated memory is still 400.6 MB. Free memory was 346.7 MB in the beginning and 345.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 188.18 ms. Allocated memory is still 400.6 MB. Free memory was 345.4 MB in the beginning and 325.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1700.06 ms. Allocated memory was 400.6 MB in the beginning and 627.6 MB in the end (delta: 227.0 MB). Free memory was 325.5 MB in the beginning and 560.3 MB in the end (delta: -234.8 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 51 locations, 15 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 180 SDtfs, 432 SDslu, 548 SDs, 0 SdLazy, 487 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 157 ConstructedInterpolants, 13 QuantifiedInterpolants, 20476 SizeOfPredicates, 9 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 10/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_18-20-57-889.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_18-20-57-889.csv Received shutdown request...