java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:16:57,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:16:57,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:16:57,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:16:57,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:16:57,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:16:57,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:16:57,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:16:57,617 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:16:57,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:16:57,618 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:16:57,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:16:57,620 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:16:57,621 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:16:57,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:16:57,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:16:57,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:16:57,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:16:57,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:16:57,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:16:57,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:16:57,630 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:16:57,630 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:16:57,631 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:16:57,631 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:16:57,632 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:16:57,632 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:16:57,633 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:16:57,633 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:16:57,633 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:16:57,634 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:16:57,634 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:16:57,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:16:57,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:16:57,644 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:16:57,644 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:16:57,645 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:16:57,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:16:57,645 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:16:57,645 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:16:57,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:16:57,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:16:57,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:16:57,647 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:16:57,647 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:16:57,647 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:16:57,647 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:16:57,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:16:57,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:16:57,647 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:16:57,648 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:16:57,648 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:16:57,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:16:57,705 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:16:57,709 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:16:57,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:16:57,711 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:16:57,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test10_true-valid-memsafety_true-termination.i [2018-02-04 04:16:57,867 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:16:57,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:16:57,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:57,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:16:57,873 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:16:57,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:57" (1/1) ... [2018-02-04 04:16:57,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581e1694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:57, skipping insertion in model container [2018-02-04 04:16:57,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:57" (1/1) ... [2018-02-04 04:16:57,891 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:57,929 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:58,011 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:58,024 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:58,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58 WrapperNode [2018-02-04 04:16:58,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:58,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:16:58,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:16:58,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:16:58,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (1/1) ... [2018-02-04 04:16:58,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:16:58,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:16:58,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:16:58,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:16:58,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (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 [2018-02-04 04:16:58,096 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_10 [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure free_10 [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:16:58,097 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:16:58,097 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_10 [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure free_10 [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:16:58,098 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:16:58,323 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:16:58,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:58 BoogieIcfgContainer [2018-02-04 04:16:58,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:16:58,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:16:58,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:16:58,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:16:58,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:16:57" (1/3) ... [2018-02-04 04:16:58,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a33f67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:58, skipping insertion in model container [2018-02-04 04:16:58,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:58" (2/3) ... [2018-02-04 04:16:58,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a33f67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:58, skipping insertion in model container [2018-02-04 04:16:58,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:58" (3/3) ... [2018-02-04 04:16:58,330 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test10_true-valid-memsafety_true-termination.i [2018-02-04 04:16:58,336 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:16:58,342 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2018-02-04 04:16:58,364 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:16:58,365 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:16:58,365 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:16:58,365 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:16:58,365 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:16:58,365 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:16:58,365 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:16:58,365 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:16:58,366 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:16:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-02-04 04:16:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:16:58,382 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:58,383 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:58,383 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:16:58,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1784809794, now seen corresponding path program 1 times [2018-02-04 04:16:58,386 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:58,387 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:58,421 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:58,421 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:58,421 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:58,460 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:58,516 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:58,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:16:58,517 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:16:58,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:16:58,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:58,528 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2018-02-04 04:16:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:58,803 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2018-02-04 04:16:58,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:16:58,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-02-04 04:16:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:58,812 INFO L225 Difference]: With dead ends: 146 [2018-02-04 04:16:58,812 INFO L226 Difference]: Without dead ends: 140 [2018-02-04 04:16:58,813 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-04 04:16:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 99. [2018-02-04 04:16:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-04 04:16:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-02-04 04:16:58,845 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 16 [2018-02-04 04:16:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:58,846 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-02-04 04:16:58,846 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:16:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-02-04 04:16:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:16:58,847 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:58,847 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:58,847 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:16:58,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1808064800, now seen corresponding path program 1 times [2018-02-04 04:16:58,848 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:58,848 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:58,849 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:58,849 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:58,849 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:58,864 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:58,915 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:58,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:16:58,916 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:16:58,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:16:58,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:16:58,917 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 6 states. [2018-02-04 04:16:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:59,023 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2018-02-04 04:16:59,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:16:59,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-02-04 04:16:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:59,025 INFO L225 Difference]: With dead ends: 146 [2018-02-04 04:16:59,025 INFO L226 Difference]: Without dead ends: 146 [2018-02-04 04:16:59,025 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:16:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-04 04:16:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2018-02-04 04:16:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-02-04 04:16:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-02-04 04:16:59,033 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 18 [2018-02-04 04:16:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:59,033 INFO L432 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-02-04 04:16:59,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:16:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-02-04 04:16:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:16:59,034 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:59,034 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:59,034 INFO L371 AbstractCegarLoop]: === Iteration 3 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:16:59,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1556713239, now seen corresponding path program 1 times [2018-02-04 04:16:59,035 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:59,035 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:59,036 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,036 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,036 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,058 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:16:59,102 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:16:59,102 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:16:59,103 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,127 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:16:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:59,150 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:16:59,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2018-02-04 04:16:59,150 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:16:59,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:16:59,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:16:59,150 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand 5 states. [2018-02-04 04:16:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:59,180 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-02-04 04:16:59,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:16:59,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 04:16:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:59,183 INFO L225 Difference]: With dead ends: 99 [2018-02-04 04:16:59,183 INFO L226 Difference]: Without dead ends: 97 [2018-02-04 04:16:59,183 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:16:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-02-04 04:16:59,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-02-04 04:16:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-02-04 04:16:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2018-02-04 04:16:59,190 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 19 [2018-02-04 04:16:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:59,190 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2018-02-04 04:16:59,190 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:16:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2018-02-04 04:16:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:16:59,191 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:59,191 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:59,191 INFO L371 AbstractCegarLoop]: === Iteration 4 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:16:59,192 INFO L82 PathProgramCache]: Analyzing trace with hash 256564149, now seen corresponding path program 1 times [2018-02-04 04:16:59,192 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:59,192 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:59,195 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,195 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,195 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,205 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:59,272 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:16:59,272 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:16:59,274 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,299 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:16:59,323 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 6 treesize of output 5 [2018-02-04 04:16:59,324 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:16:59,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:16:59,326 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 04:16:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:59,333 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:16:59,333 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-02-04 04:16:59,333 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:16:59,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:16:59,334 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:16:59,334 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 7 states. [2018-02-04 04:16:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:59,511 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2018-02-04 04:16:59,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:16:59,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-02-04 04:16:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:59,512 INFO L225 Difference]: With dead ends: 114 [2018-02-04 04:16:59,512 INFO L226 Difference]: Without dead ends: 114 [2018-02-04 04:16:59,513 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:16:59,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-04 04:16:59,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 101. [2018-02-04 04:16:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-02-04 04:16:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2018-02-04 04:16:59,517 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 21 [2018-02-04 04:16:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:59,518 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2018-02-04 04:16:59,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:16:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2018-02-04 04:16:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:16:59,518 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:59,518 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:59,518 INFO L371 AbstractCegarLoop]: === Iteration 5 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:16:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash 256564150, now seen corresponding path program 1 times [2018-02-04 04:16:59,519 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:59,519 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:59,520 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,520 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,520 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,531 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:59,712 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:16:59,713 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:16:59,714 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:59,732 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:16:59,758 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 17 treesize of output 16 [2018-02-04 04:16:59,758 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:16:59,768 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 20 treesize of output 19 [2018-02-04 04:16:59,769 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 04:16:59,777 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 04:16:59,777 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 04:16:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:59,842 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:16:59,842 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-02-04 04:16:59,843 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 04:16:59,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 04:16:59,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:16:59,843 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand 13 states. [2018-02-04 04:17:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:17:00,278 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2018-02-04 04:17:00,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:17:00,278 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2018-02-04 04:17:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:17:00,279 INFO L225 Difference]: With dead ends: 144 [2018-02-04 04:17:00,279 INFO L226 Difference]: Without dead ends: 144 [2018-02-04 04:17:00,279 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-02-04 04:17:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-02-04 04:17:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 127. [2018-02-04 04:17:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-02-04 04:17:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 161 transitions. [2018-02-04 04:17:00,285 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 161 transitions. Word has length 21 [2018-02-04 04:17:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:17:00,286 INFO L432 AbstractCegarLoop]: Abstraction has 127 states and 161 transitions. [2018-02-04 04:17:00,286 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 04:17:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 161 transitions. [2018-02-04 04:17:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:17:00,286 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:17:00,287 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:17:00,287 INFO L371 AbstractCegarLoop]: === Iteration 6 === [free_10Err6RequiresViolation, free_10Err4RequiresViolation, free_10Err7RequiresViolation, free_10Err5RequiresViolation, free_10Err0RequiresViolation, free_10Err3RequiresViolation, free_10Err1RequiresViolation, free_10Err2RequiresViolation, alloc_10Err5RequiresViolation, alloc_10Err2RequiresViolation, alloc_10Err3RequiresViolation, alloc_10Err4RequiresViolation, alloc_10Err1RequiresViolation, alloc_10Err0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr18RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr23RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr19RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr21RequiresViolation, entry_pointErr22RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr20RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation]=== [2018-02-04 04:17:00,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1653900695, now seen corresponding path program 1 times [2018-02-04 04:17:00,287 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:17:00,287 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:17:00,288 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:17:00,288 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:17:00,288 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:17:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:17:00,300 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:17:00,306 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) 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:915) 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:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) 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:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) 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) [2018-02-04 04:17:00,309 INFO L168 Benchmark]: Toolchain (without parser) took 2441.50 ms. Allocated memory was 406.3 MB in the beginning and 639.6 MB in the end (delta: 233.3 MB). Free memory was 363.1 MB in the beginning and 502.1 MB in the end (delta: -138.9 MB). Peak memory consumption was 94.4 MB. Max. memory is 5.3 GB. [2018-02-04 04:17:00,310 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 406.3 MB. Free memory is still 369.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:17:00,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.68 ms. Allocated memory is still 406.3 MB. Free memory was 363.1 MB in the beginning and 349.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:17:00,310 INFO L168 Benchmark]: Boogie Preprocessor took 28.53 ms. Allocated memory is still 406.3 MB. Free memory was 349.9 MB in the beginning and 348.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:17:00,311 INFO L168 Benchmark]: RCFGBuilder took 265.28 ms. Allocated memory is still 406.3 MB. Free memory was 348.6 MB in the beginning and 320.0 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:17:00,311 INFO L168 Benchmark]: TraceAbstraction took 1983.92 ms. Allocated memory was 406.3 MB in the beginning and 639.6 MB in the end (delta: 233.3 MB). Free memory was 320.0 MB in the beginning and 502.1 MB in the end (delta: -182.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:17:00,312 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 406.3 MB. Free memory is still 369.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 160.68 ms. Allocated memory is still 406.3 MB. Free memory was 363.1 MB in the beginning and 349.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.53 ms. Allocated memory is still 406.3 MB. Free memory was 349.9 MB in the beginning and 348.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 265.28 ms. Allocated memory is still 406.3 MB. Free memory was 348.6 MB in the beginning and 320.0 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1983.92 ms. Allocated memory was 406.3 MB in the beginning and 639.6 MB in the end (delta: 233.3 MB). Free memory was 320.0 MB in the beginning and 502.1 MB in the end (delta: -182.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) 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/memleaks_test10_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-17-00-318.csv Received shutdown request...