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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:09:47,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:09:47,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:09:47,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:09:47,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:09:47,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:09:47,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:09:47,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:09:47,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:09:47,428 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:09:47,429 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:09:47,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:09:47,430 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:09:47,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:09:47,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:09:47,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:09:47,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:09:47,439 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:09:47,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:09:47,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:09:47,444 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 00:09:47,449 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:09:47,449 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:09:47,450 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 00:09:47,458 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:09:47,458 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:09:47,459 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:09:47,459 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:09:47,460 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:09:47,460 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:09:47,460 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:09:47,460 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:09:47,460 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:09:47,460 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:09:47,461 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:09:47,462 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:09:47,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:09:47,463 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:09:47,463 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:09:47,463 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:09:47,463 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:09:47,463 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:09:47,464 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:09:47,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:09:47,464 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:09:47,464 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:09:47,465 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:09:47,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:09:47,507 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:09:47,511 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:09:47,512 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:09:47,513 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:09:47,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-30 00:09:47,692 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:09:47,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 00:09:47,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:47,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:09:47,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:09:47,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f5e0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47, skipping insertion in model container [2018-01-30 00:09:47,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,721 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:47,769 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:47,887 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:47,901 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:47,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47 WrapperNode [2018-01-30 00:09:47,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:47,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:09:47,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:09:47,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:09:47,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... [2018-01-30 00:09:47,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:09:47,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:09:47,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:09:47,939 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:09:47,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (1/1) ... No working directory specified, using /storage/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 [2018-01-30 00:09:47,984 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9_2 [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-30 00:09:47,985 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-30 00:09:47,986 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9_2 [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:09:47,987 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:09:47,988 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:09:48,123 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:09:48,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:48 BoogieIcfgContainer [2018-01-30 00:09:48,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:09:48,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:09:48,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:09:48,127 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:09:48,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:09:47" (1/3) ... [2018-01-30 00:09:48,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515a33e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:48, skipping insertion in model container [2018-01-30 00:09:48,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:47" (2/3) ... [2018-01-30 00:09:48,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515a33e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:48, skipping insertion in model container [2018-01-30 00:09:48,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:48" (3/3) ... [2018-01-30 00:09:48,129 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-30 00:09:48,136 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:09:48,142 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 00:09:48,182 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:09:48,183 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:09:48,183 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:09:48,183 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:09:48,183 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:09:48,183 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:09:48,183 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:09:48,184 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:09:48,184 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:09:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-01-30 00:09:48,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-30 00:09:48,211 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:48,212 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:48,212 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:48,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1711962956, now seen corresponding path program 1 times [2018-01-30 00:09:48,220 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:48,221 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:48,269 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,270 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:48,270 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:48,333 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:48,484 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:48,484 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:09:48,486 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:09:48,500 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:09:48,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:09:48,504 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2018-01-30 00:09:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:48,638 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2018-01-30 00:09:48,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:09:48,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2018-01-30 00:09:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:48,649 INFO L225 Difference]: With dead ends: 59 [2018-01-30 00:09:48,649 INFO L226 Difference]: Without dead ends: 55 [2018-01-30 00:09:48,652 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:09:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-30 00:09:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2018-01-30 00:09:48,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-30 00:09:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-01-30 00:09:48,686 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 28 [2018-01-30 00:09:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:48,687 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-01-30 00:09:48,687 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:09:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-01-30 00:09:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-30 00:09:48,689 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:48,689 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:48,689 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:48,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1711962955, now seen corresponding path program 1 times [2018-01-30 00:09:48,690 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:48,690 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:48,692 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,692 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:48,692 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:48,714 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:48,767 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:48,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:09:48,769 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:09:48,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:09:48,770 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:09:48,770 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 5 states. [2018-01-30 00:09:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:48,841 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-01-30 00:09:48,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:09:48,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2018-01-30 00:09:48,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:48,844 INFO L225 Difference]: With dead ends: 57 [2018-01-30 00:09:48,844 INFO L226 Difference]: Without dead ends: 56 [2018-01-30 00:09:48,845 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:09:48,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-30 00:09:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2018-01-30 00:09:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-30 00:09:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2018-01-30 00:09:48,855 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 28 [2018-01-30 00:09:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:48,855 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2018-01-30 00:09:48,855 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:09:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-01-30 00:09:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-30 00:09:48,856 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:48,856 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:48,856 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:48,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1642748200, now seen corresponding path program 1 times [2018-01-30 00:09:48,857 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:48,857 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:48,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,859 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:48,859 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:48,881 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:48,962 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:48,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:09:48,963 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 00:09:48,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 00:09:48,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 00:09:48,964 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2018-01-30 00:09:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:49,029 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2018-01-30 00:09:49,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 00:09:49,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-01-30 00:09:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:49,031 INFO L225 Difference]: With dead ends: 55 [2018-01-30 00:09:49,031 INFO L226 Difference]: Without dead ends: 54 [2018-01-30 00:09:49,031 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-01-30 00:09:49,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-30 00:09:49,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-30 00:09:49,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-30 00:09:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2018-01-30 00:09:49,037 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 29 [2018-01-30 00:09:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:49,037 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2018-01-30 00:09:49,037 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 00:09:49,037 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-01-30 00:09:49,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-30 00:09:49,038 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:49,038 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:49,038 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:49,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1642748201, now seen corresponding path program 1 times [2018-01-30 00:09:49,039 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:49,039 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:49,040 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,040 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:49,040 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:49,055 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:49,107 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:49,107 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:09:49,107 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 00:09:49,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 00:09:49,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 00:09:49,108 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 6 states. [2018-01-30 00:09:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:49,261 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2018-01-30 00:09:49,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 00:09:49,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-01-30 00:09:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:49,293 INFO L225 Difference]: With dead ends: 55 [2018-01-30 00:09:49,293 INFO L226 Difference]: Without dead ends: 54 [2018-01-30 00:09:49,293 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:09:49,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-30 00:09:49,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38. [2018-01-30 00:09:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-30 00:09:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-01-30 00:09:49,298 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 29 [2018-01-30 00:09:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:49,298 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-01-30 00:09:49,298 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 00:09:49,298 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-01-30 00:09:49,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-30 00:09:49,299 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:49,299 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:49,299 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:49,299 INFO L82 PathProgramCache]: Analyzing trace with hash -221632966, now seen corresponding path program 1 times [2018-01-30 00:09:49,299 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:49,299 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:49,300 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,300 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:49,301 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:49,313 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:49,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:49,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 00:09:49,348 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 00:09:49,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 00:09:49,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:09:49,349 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 3 states. [2018-01-30 00:09:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:49,388 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2018-01-30 00:09:49,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 00:09:49,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-01-30 00:09:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:49,390 INFO L225 Difference]: With dead ends: 55 [2018-01-30 00:09:49,391 INFO L226 Difference]: Without dead ends: 50 [2018-01-30 00:09:49,391 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:09:49,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-30 00:09:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2018-01-30 00:09:49,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-01-30 00:09:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2018-01-30 00:09:49,403 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 30 [2018-01-30 00:09:49,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:49,403 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2018-01-30 00:09:49,403 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 00:09:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-01-30 00:09:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-30 00:09:49,405 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:49,405 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:49,405 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-01-30 00:09:49,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1864651346, now seen corresponding path program 1 times [2018-01-30 00:09:49,406 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:49,406 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:49,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,407 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:49,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:49,451 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 00:09:49,470 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-30 00:09:49,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:09:49 BoogieIcfgContainer [2018-01-30 00:09:49,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:09:49,488 INFO L168 Benchmark]: Toolchain (without parser) took 1795.39 ms. Allocated memory was 301.5 MB in the beginning and 457.2 MB in the end (delta: 155.7 MB). Free memory was 260.5 MB in the beginning and 352.8 MB in the end (delta: -92.3 MB). Peak memory consumption was 63.4 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:49,489 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 301.5 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:49,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.38 ms. Allocated memory is still 301.5 MB. Free memory was 260.5 MB in the beginning and 246.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:49,489 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 301.5 MB. Free memory is still 246.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:49,489 INFO L168 Benchmark]: RCFGBuilder took 184.53 ms. Allocated memory is still 301.5 MB. Free memory was 244.6 MB in the beginning and 232.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:49,490 INFO L168 Benchmark]: TraceAbstraction took 1363.16 ms. Allocated memory was 301.5 MB in the beginning and 457.2 MB in the end (delta: 155.7 MB). Free memory was 230.0 MB in the beginning and 352.8 MB in the end (delta: -122.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:49,491 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 301.5 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 208.38 ms. Allocated memory is still 301.5 MB. Free memory was 260.5 MB in the beginning and 246.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 301.5 MB. Free memory is still 246.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 184.53 ms. Allocated memory is still 301.5 MB. Free memory was 244.6 MB in the beginning and 232.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1363.16 ms. Allocated memory was 301.5 MB in the beginning and 457.2 MB in the end (delta: 155.7 MB). Free memory was 230.0 MB in the beginning and 352.8 MB in the end (delta: -122.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1456]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1456. Possible FailurePath: IVAL [\old(a9)=8, \old(a9)=6, a9={8:6}] [L1434] int *a9; VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1457] CALL entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1448] CALL, EXPR probe_9_2() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, __VERIFIER_nondet_int()=1, a9={0:0}, size=4] [L1074] EXPR, FCALL malloc(size) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={7:0}, a9={0:0}, malloc(size)={7:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ldv_malloc(sizeof(int))={7:0}] [L1437] a9 = (int *)ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, ldv_malloc(sizeof(int))={7:0}] [L1440] RET return - -3; VAL [\old(a9)=0, \old(a9)=0, \result=3, a9={7:0}] [L1448] EXPR probe_9_2() VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, probe_9_2()=3] [L1448] int ret = probe_9_2(); VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, probe_9_2()=3, ret=3] [L1450] COND FALSE !(ret==0) VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, ret=3] [L1453] RET a9 = 0 VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ret=3] [L1457] entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 43 locations, 3 error locations. UNSAFE Result, 1.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 208 SDtfs, 89 SDslu, 481 SDs, 0 SdLazy, 89 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=2, 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, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 8957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_00-09-49-497.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-09-49-497.csv Received shutdown request...