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/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 22:20:45,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 22:20:45,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 22:20:45,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 22:20:45,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 22:20:45,593 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 22:20:45,594 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 22:20:45,595 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 22:20:45,597 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 22:20:45,598 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 22:20:45,598 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 22:20:45,598 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 22:20:45,599 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 22:20:45,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 22:20:45,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 22:20:45,603 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 22:20:45,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 22:20:45,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 22:20:45,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 22:20:45,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 22:20:45,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 22:20:45,618 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 22:20:45,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 22:20:45,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 22:20:45,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 22:20:45,629 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 22:20:45,630 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 22:20:45,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 22:20:45,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 22:20:45,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 22:20:45,631 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 22:20:45,631 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 22:20:45,631 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 22:20:45,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 22:20:45,631 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 22:20:45,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 22:20:45,632 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 22:20:45,632 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 22:20:45,632 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 22:20:45,632 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 22:20:45,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 22:20:45,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 22:20:45,633 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 22:20:45,633 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 22:20:45,633 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 22:20:45,634 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 22:20:45,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 22:20:45,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 22:20:45,634 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 22:20:45,634 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 22:20:45,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 22:20:45,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 22:20:45,635 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 22:20:45,635 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 22:20:45,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 22:20:45,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 22:20:45,636 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 22:20:45,637 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 22:20:45,637 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 22:20:45,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 22:20:45,684 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 22:20:45,688 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 22:20:45,690 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 22:20:45,690 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 22:20:45,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_false-valid-free.i [2018-01-20 22:20:45,891 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 22:20:45,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 22:20:45,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 22:20:45,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 22:20:45,901 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 22:20:45,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:20:45" (1/1) ... [2018-01-20 22:20:45,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4b3da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:45, skipping insertion in model container [2018-01-20 22:20:45,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:20:45" (1/1) ... [2018-01-20 22:20:45,918 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:20:45,965 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:20:46,072 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:20:46,085 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:20:46,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46 WrapperNode [2018-01-20 22:20:46,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 22:20:46,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 22:20:46,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 22:20:46,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 22:20:46,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (1/1) ... [2018-01-20 22:20:46,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 22:20:46,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 22:20:46,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 22:20:46,120 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 22:20:46,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (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 [2018-01-20 22:20:46,169 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 22:20:46,169 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 22:20:46,169 INFO L136 BoogieDeclarations]: Found implementation of procedure h_unsafe [2018-01-20 22:20:46,169 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-20 22:20:46,169 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure h_unsafe [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 22:20:46,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 22:20:46,282 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 22:20:46,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:20:46 BoogieIcfgContainer [2018-01-20 22:20:46,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 22:20:46,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 22:20:46,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 22:20:46,285 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 22:20:46,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 10:20:45" (1/3) ... [2018-01-20 22:20:46,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6299a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:20:46, skipping insertion in model container [2018-01-20 22:20:46,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:20:46" (2/3) ... [2018-01-20 22:20:46,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6299a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:20:46, skipping insertion in model container [2018-01-20 22:20:46,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:20:46" (3/3) ... [2018-01-20 22:20:46,289 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test3_false-valid-free.i [2018-01-20 22:20:46,296 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 22:20:46,302 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-20 22:20:46,339 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:20:46,340 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:20:46,340 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:20:46,340 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:20:46,340 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:20:46,340 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:20:46,340 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:20:46,340 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 22:20:46,341 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:20:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-20 22:20:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 22:20:46,366 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,367 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 22:20:46,367 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 22:20:46,373 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2018-01-20 22:20:46,375 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,376 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,426 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,475 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:20:46,481 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,486 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:20:46,486 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:20:46,486 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:20:46,486 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:20:46,486 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:20:46,487 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:20:46,487 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:20:46,487 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == h_unsafeErr0EnsuresViolation======== [2018-01-20 22:20:46,487 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:20:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-20 22:20:46,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-20 22:20:46,489 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,489 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:20:46,489 INFO L371 AbstractCegarLoop]: === Iteration 1 === [h_unsafeErr0EnsuresViolation]=== [2018-01-20 22:20:46,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1002359421, now seen corresponding path program 1 times [2018-01-20 22:20:46,490 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,490 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,492 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,492 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,492 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:20:46,511 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:20:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:20:46,539 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:20:46,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-01-20 22:20:46,540 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 22:20:46,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 22:20:46,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:20:46,552 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-01-20 22:20:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:20:46,643 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-01-20 22:20:46,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 22:20:46,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-01-20 22:20:46,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:20:46,650 INFO L225 Difference]: With dead ends: 24 [2018-01-20 22:20:46,651 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:20:46,653 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:20:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:20:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:20:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:20:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:20:46,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-01-20 22:20:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:20:46,675 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:20:46,676 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 22:20:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:20:46,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:20:46,678 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:20:46,679 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:20:46,679 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:20:46,679 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:20:46,679 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:20:46,679 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:20:46,679 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:20:46,679 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 22:20:46,679 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:20:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-20 22:20:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-20 22:20:46,681 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,682 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:20:46,682 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:20:46,682 INFO L82 PathProgramCache]: Analyzing trace with hash 179996649, now seen corresponding path program 1 times [2018-01-20 22:20:46,682 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,682 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,684 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,684 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,685 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,715 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:20:46,717 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,718 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,719 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,719 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,720 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,727 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:20:46,727 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:20:46,727 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:20:46,728 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:20:46,728 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:20:46,728 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:20:46,728 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:20:46,728 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 22:20:46,728 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:20:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-20 22:20:46,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-20 22:20:46,730 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,730 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:20:46,730 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 22:20:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1966665564, now seen corresponding path program 1 times [2018-01-20 22:20:46,731 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,731 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,733 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,733 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,733 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:20:46,745 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:20:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:20:46,793 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:20:46,793 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:20:46,794 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:20:46,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:20:46,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:20:46,794 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-01-20 22:20:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:20:46,864 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-20 22:20:46,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:20:46,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-20 22:20:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:20:46,865 INFO L225 Difference]: With dead ends: 26 [2018-01-20 22:20:46,865 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:20:46,866 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:20:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:20:46,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:20:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:20:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:20:46,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-20 22:20:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:20:46,866 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:20:46,867 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:20:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:20:46,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:20:46,868 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:20:46,868 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:20:46,868 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:20:46,868 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:20:46,868 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:20:46,868 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:20:46,868 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:20:46,868 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-20 22:20:46,868 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:20:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-20 22:20:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-20 22:20:46,870 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,870 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:20:46,870 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 22:20:46,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1378581262, now seen corresponding path program 1 times [2018-01-20 22:20:46,871 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,871 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,872 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,873 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,873 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:20:46,881 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:20:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:20:46,904 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:20:46,904 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:20:46,905 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:20:46,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:20:46,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:20:46,905 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-01-20 22:20:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:20:46,950 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-20 22:20:46,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:20:46,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-20 22:20:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:20:46,953 INFO L225 Difference]: With dead ends: 26 [2018-01-20 22:20:46,953 INFO L226 Difference]: Without dead ends: 15 [2018-01-20 22:20:46,953 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:20:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-01-20 22:20:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-01-20 22:20:46,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-01-20 22:20:46,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-01-20 22:20:46,960 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2018-01-20 22:20:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:20:46,960 INFO L432 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-01-20 22:20:46,960 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:20:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-01-20 22:20:46,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-20 22:20:46,961 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:20:46,961 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:20:46,961 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 22:20:46,961 INFO L82 PathProgramCache]: Analyzing trace with hash -213656853, now seen corresponding path program 1 times [2018-01-20 22:20:46,961 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:20:46,961 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:20:46,963 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,963 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:20:46,963 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:20:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:20:46,981 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:20:46,984 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,985 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,986 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:20:46,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:20:46 BoogieIcfgContainer [2018-01-20 22:20:46,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 22:20:46,991 INFO L168 Benchmark]: Toolchain (without parser) took 1098.90 ms. Allocated memory was 305.1 MB in the beginning and 467.7 MB in the end (delta: 162.5 MB). Free memory was 264.1 MB in the beginning and 413.8 MB in the end (delta: -149.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. [2018-01-20 22:20:46,992 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 22:20:46,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.71 ms. Allocated memory is still 305.1 MB. Free memory was 264.1 MB in the beginning and 251.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-20 22:20:46,993 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:20:46,994 INFO L168 Benchmark]: RCFGBuilder took 162.86 ms. Allocated memory is still 305.1 MB. Free memory was 249.9 MB in the beginning and 237.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:20:46,994 INFO L168 Benchmark]: TraceAbstraction took 706.28 ms. Allocated memory was 305.1 MB in the beginning and 467.7 MB in the end (delta: 162.5 MB). Free memory was 237.8 MB in the beginning and 413.8 MB in the end (delta: -176.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 22:20:46,996 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 194.71 ms. Allocated memory is still 305.1 MB. Free memory was 264.1 MB in the beginning and 251.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 162.86 ms. Allocated memory is still 305.1 MB. Free memory was 249.9 MB in the beginning and 237.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 706.28 ms. Allocated memory was 305.1 MB in the beginning and 467.7 MB in the end (delta: 162.5 MB). Free memory was 237.8 MB in the beginning and 413.8 MB in the end (delta: -176.0 MB). There was no memory consumed. 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) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1434]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: h_unsafeErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1444] CALL entry_point() [L1439] CALL, EXPR h_unsafe() [L1435] RET return (int *)__VERIFIER_nondet_pointer(); [L1439] EXPR h_unsafe() VAL [h_unsafe()={0:0}] [L1439] int *p = h_unsafe(); [L1440] COND FALSE, RET !(\read(*p)) VAL [p={0:0}] [L1444] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1443]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1438]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1444] CALL entry_point() [L1439] CALL, EXPR h_unsafe() [L1435] RET return (int *)__VERIFIER_nondet_pointer(); [L1439] EXPR h_unsafe() VAL [h_unsafe()={3:0}] [L1439] int *p = h_unsafe(); [L1440] COND TRUE \read(*p) VAL [p={3:0}] [L1440] FCALL free(p) VAL [p={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: entry_pointErr0EnsuresViolation CFG has 5 procedures, 24 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_22-20-47-008.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_22-20-47-008.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_22-20-47-008.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_22-20-47-008.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_22-20-47-008.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_22-20-47-008.csv Received shutdown request...