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/memsafety/test-0232_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 14:23:10,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 14:23:10,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 14:23:10,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 14:23:10,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 14:23:10,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 14:23:10,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 14:23:10,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 14:23:10,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 14:23:10,284 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 14:23:10,285 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 14:23:10,285 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 14:23:10,286 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 14:23:10,288 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 14:23:10,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 14:23:10,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 14:23:10,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 14:23:10,295 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 14:23:10,296 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 14:23:10,298 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 14:23:10,300 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 14:23:10,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 14:23:10,305 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 14:23:10,306 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 [2018-01-23 14:23:10,316 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 14:23:10,316 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 14:23:10,317 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 14:23:10,317 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 14:23:10,317 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 14:23:10,318 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 14:23:10,318 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 14:23:10,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 14:23:10,319 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 14:23:10,319 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 14:23:10,319 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 14:23:10,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 14:23:10,319 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 14:23:10,320 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 14:23:10,321 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 14:23:10,321 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 14:23:10,321 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 14:23:10,321 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 14:23:10,321 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 14:23:10,322 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 14:23:10,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 14:23:10,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 14:23:10,322 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 14:23:10,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 14:23:10,324 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 14:23:10,325 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 14:23:10,325 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 14:23:10,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 14:23:10,371 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 14:23:10,375 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 14:23:10,377 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 14:23:10,377 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 14:23:10,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0232_false-valid-free.i [2018-01-23 14:23:10,545 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 14:23:10,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 14:23:10,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 14:23:10,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 14:23:10,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 14:23:10,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599ef375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10, skipping insertion in model container [2018-01-23 14:23:10,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,581 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:23:10,621 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:23:10,730 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:23:10,745 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:23:10,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10 WrapperNode [2018-01-23 14:23:10,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 14:23:10,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 14:23:10,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 14:23:10,752 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 14:23:10,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (1/1) ... [2018-01-23 14:23:10,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 14:23:10,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 14:23:10,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 14:23:10,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 14:23:10,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (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 [2018-01-23 14:23:10,831 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 14:23:10,832 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 14:23:10,832 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-01-23 14:23:10,832 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 14:23:10,832 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-23 14:23:10,832 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-23 14:23:10,832 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 14:23:10,833 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-01-23 14:23:10,834 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 14:23:10,834 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 14:23:10,834 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 14:23:11,084 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 14:23:11,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:23:11 BoogieIcfgContainer [2018-01-23 14:23:11,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 14:23:11,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-23 14:23:11,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-23 14:23:11,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-23 14:23:11,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:23:10" (1/3) ... [2018-01-23 14:23:11,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37097bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:23:11, skipping insertion in model container [2018-01-23 14:23:11,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:23:10" (2/3) ... [2018-01-23 14:23:11,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37097bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:23:11, skipping insertion in model container [2018-01-23 14:23:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:23:11" (3/3) ... [2018-01-23 14:23:11,092 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0232_false-valid-free.i [2018-01-23 14:23:11,099 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-23 14:23:11,106 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-23 14:23:11,144 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:23:11,144 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:23:11,144 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:23:11,144 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:23:11,144 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:23:11,144 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:23:11,145 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:23:11,145 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-23 14:23:11,145 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:23:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-01-23 14:23:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-23 14:23:11,168 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:11,169 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-23 14:23:11,169 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-23 14:23:11,173 INFO L82 PathProgramCache]: Analyzing trace with hash 125893, now seen corresponding path program 1 times [2018-01-23 14:23:11,174 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:11,175 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:11,215 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,215 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:11,216 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:23:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:23:11,271 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:23:11,279 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:23:11,286 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:23:11,286 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:23:11,286 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:23:11,286 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:23:11,286 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:23:11,286 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:23:11,287 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:23:11,287 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-23 14:23:11,287 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:23:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-01-23 14:23:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-23 14:23:11,291 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:11,291 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:23:11,291 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:23:11,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1201666841, now seen corresponding path program 1 times [2018-01-23 14:23:11,292 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:11,292 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:11,293 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,293 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:11,294 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:11,314 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:11,354 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:11,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:23:11,356 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:23:11,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:23:11,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:23:11,373 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-01-23 14:23:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:11,396 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2018-01-23 14:23:11,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:23:11,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-01-23 14:23:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:11,476 INFO L225 Difference]: With dead ends: 105 [2018-01-23 14:23:11,476 INFO L226 Difference]: Without dead ends: 64 [2018-01-23 14:23:11,479 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:23:11,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-23 14:23:11,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-01-23 14:23:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-23 14:23:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-01-23 14:23:11,514 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 17 [2018-01-23 14:23:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:11,514 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-01-23 14:23:11,514 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:23:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-01-23 14:23:11,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-23 14:23:11,516 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:11,516 INFO L322 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, 1, 1, 1, 1, 1, 1] [2018-01-23 14:23:11,516 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:23:11,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1521991172, now seen corresponding path program 1 times [2018-01-23 14:23:11,516 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:11,517 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:11,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,518 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:11,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:11,557 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:11,760 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:11,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-23 14:23:11,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-23 14:23:11,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-23 14:23:11,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-23 14:23:11,763 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 8 states. [2018-01-23 14:23:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:12,086 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2018-01-23 14:23:12,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-23 14:23:12,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-01-23 14:23:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:12,091 INFO L225 Difference]: With dead ends: 93 [2018-01-23 14:23:12,091 INFO L226 Difference]: Without dead ends: 71 [2018-01-23 14:23:12,092 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-01-23 14:23:12,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-01-23 14:23:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-01-23 14:23:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-01-23 14:23:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-01-23 14:23:12,105 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 37 [2018-01-23 14:23:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:12,105 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-01-23 14:23:12,105 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-23 14:23:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-01-23 14:23:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-23 14:23:12,107 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:12,107 INFO L322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:23:12,108 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:23:12,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1267549394, now seen corresponding path program 1 times [2018-01-23 14:23:12,108 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:12,108 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:12,109 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,109 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:12,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:12,138 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:12,236 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:12,236 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-23 14:23:12,236 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-23 14:23:12,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-23 14:23:12,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-23 14:23:12,237 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 6 states. [2018-01-23 14:23:12,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:12,297 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2018-01-23 14:23:12,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-23 14:23:12,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-01-23 14:23:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:12,300 INFO L225 Difference]: With dead ends: 83 [2018-01-23 14:23:12,300 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:23:12,301 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-23 14:23:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:23:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:23:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:23:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:23:12,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-23 14:23:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:12,302 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:23:12,303 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-23 14:23:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:23:12,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:23:12,307 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:23:12,307 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:23:12,307 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:23:12,307 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:23:12,307 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:23:12,308 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:23:12,308 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:23:12,308 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-23 14:23:12,308 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:23:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-01-23 14:23:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-23 14:23:12,311 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:12,311 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:23:12,311 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-23 14:23:12,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1051528599, now seen corresponding path program 1 times [2018-01-23 14:23:12,312 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:12,312 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:12,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,313 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:12,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:12,319 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:12,328 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:12,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:23:12,328 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:23:12,328 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:23:12,329 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:23:12,329 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-01-23 14:23:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:12,333 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2018-01-23 14:23:12,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:23:12,334 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-23 14:23:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:12,334 INFO L225 Difference]: With dead ends: 105 [2018-01-23 14:23:12,335 INFO L226 Difference]: Without dead ends: 62 [2018-01-23 14:23:12,335 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:23:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-01-23 14:23:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-01-23 14:23:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-01-23 14:23:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-01-23 14:23:12,340 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 15 [2018-01-23 14:23:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:12,340 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-01-23 14:23:12,340 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:23:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-01-23 14:23:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-23 14:23:12,341 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:12,341 INFO L322 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, 1, 1, 1, 1] [2018-01-23 14:23:12,341 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-23 14:23:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash 2106609350, now seen corresponding path program 1 times [2018-01-23 14:23:12,341 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:12,342 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:12,342 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,342 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:12,343 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:12,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:12,471 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:12,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-23 14:23:12,471 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-23 14:23:12,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-23 14:23:12,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-23 14:23:12,472 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 8 states. [2018-01-23 14:23:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:12,611 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2018-01-23 14:23:12,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-23 14:23:12,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-01-23 14:23:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:12,612 INFO L225 Difference]: With dead ends: 89 [2018-01-23 14:23:12,612 INFO L226 Difference]: Without dead ends: 69 [2018-01-23 14:23:12,613 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-01-23 14:23:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-01-23 14:23:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2018-01-23 14:23:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-01-23 14:23:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-01-23 14:23:12,618 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 35 [2018-01-23 14:23:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:12,619 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-01-23 14:23:12,619 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-23 14:23:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-01-23 14:23:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-01-23 14:23:12,620 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:12,620 INFO L322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:23:12,620 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-23 14:23:12,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1721987472, now seen corresponding path program 1 times [2018-01-23 14:23:12,620 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:12,620 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:12,621 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,621 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:12,621 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:23:12,642 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:23:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:23:12,740 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:23:12,741 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-23 14:23:12,741 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-23 14:23:12,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-23 14:23:12,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-23 14:23:12,742 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 6 states. [2018-01-23 14:23:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:23:12,813 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2018-01-23 14:23:12,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-23 14:23:12,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-01-23 14:23:12,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:23:12,816 INFO L225 Difference]: With dead ends: 81 [2018-01-23 14:23:12,816 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:23:12,817 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-23 14:23:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:23:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:23:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:23:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:23:12,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-01-23 14:23:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:23:12,818 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:23:12,818 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-23 14:23:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:23:12,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:23:12,820 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:23:12,821 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:23:12,821 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:23:12,821 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:23:12,821 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:23:12,821 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:23:12,821 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:23:12,821 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == appendErr0EnsuresViolation======== [2018-01-23 14:23:12,821 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:23:12,823 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-01-23 14:23:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-23 14:23:12,825 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:23:12,825 INFO L322 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] [2018-01-23 14:23:12,825 INFO L371 AbstractCegarLoop]: === Iteration 1 === [appendErr0EnsuresViolation]=== [2018-01-23 14:23:12,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1137567503, now seen corresponding path program 1 times [2018-01-23 14:23:12,825 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:23:12,825 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:23:12,826 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,827 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:23:12,827 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:23:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:23:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:23:12,853 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:23:12,859 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:23:12,863 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:23:12,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 02:23:12 BoogieIcfgContainer [2018-01-23 14:23:12,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-23 14:23:12,877 INFO L168 Benchmark]: Toolchain (without parser) took 2331.35 ms. Allocated memory was 307.8 MB in the beginning and 486.5 MB in the end (delta: 178.8 MB). Free memory was 266.1 MB in the beginning and 429.4 MB in the end (delta: -163.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 5.3 GB. [2018-01-23 14:23:12,878 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 307.8 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:23:12,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.67 ms. Allocated memory is still 307.8 MB. Free memory was 265.1 MB in the beginning and 255.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-23 14:23:12,879 INFO L168 Benchmark]: Boogie Preprocessor took 33.62 ms. Allocated memory is still 307.8 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-23 14:23:12,879 INFO L168 Benchmark]: RCFGBuilder took 299.24 ms. Allocated memory is still 307.8 MB. Free memory was 253.0 MB in the beginning and 230.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-01-23 14:23:12,880 INFO L168 Benchmark]: TraceAbstraction took 1790.68 ms. Allocated memory was 307.8 MB in the beginning and 486.5 MB in the end (delta: 178.8 MB). Free memory was 230.4 MB in the beginning and 429.4 MB in the end (delta: -199.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:23:12,881 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 307.8 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.67 ms. Allocated memory is still 307.8 MB. Free memory was 265.1 MB in the beginning and 255.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.62 ms. Allocated memory is still 307.8 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 299.24 ms. Allocated memory is still 307.8 MB. Free memory was 253.0 MB in the beginning and 230.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1790.68 ms. Allocated memory was 307.8 MB in the beginning and 486.5 MB in the end (delta: 178.8 MB). Free memory was 230.4 MB in the beginning and 429.4 MB in the end (delta: -199.0 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) * 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 4 procedures, 68 locations, 4 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=68occurred 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: 1]: 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: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 68 locations, 4 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 72 SDslu, 188 SDs, 0 SdLazy, 140 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 17859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 633]: 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 4 procedures, 68 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 72 SDslu, 180 SDs, 0 SdLazy, 140 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 16803 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 624]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L635] FCALL struct item *list = ((void *)0); VAL [list={11:0}] [L637] CALL append(&list) VAL [plist={11:0}] [L626] EXPR, FCALL malloc(sizeof *item) VAL [malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L626] struct item *item = malloc(sizeof *item); VAL [item={9:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L627] EXPR, FCALL \read(**plist) VAL [\read(**plist)={0:0}, item={9:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L627] FCALL item->next = *plist VAL [\read(**plist)={0:0}, item={9:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L628] EXPR, FCALL item->next VAL [item={9:0}, item->next={0:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L628-L630] COND FALSE, EXPR !((item->next) ? item->next->data : malloc(sizeof *item)) VAL [item={9:0}, item->next={0:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L630] EXPR, FCALL malloc(sizeof *item) VAL [item={9:0}, item->next={0:0}, malloc(sizeof *item)={13:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L628-L630] EXPR (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={13:0}, item={9:0}, item->next={0:0}, malloc(sizeof *item)={13:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L628-L630] FCALL item->data = (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={13:0}, item={9:0}, item->next={0:0}, malloc(sizeof *item)={13:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] [L631] FCALL *plist = item VAL [item={9:0}, malloc(sizeof *item)={13:0}, malloc(sizeof *item)={9:0}, plist={11:0}, plist={11:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: appendErr0EnsuresViolation CFG has 4 procedures, 68 locations, 4 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=68occurred 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, 23 NumberOfCodeBlocks, 23 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 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-23_14-23-12-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-23_14-23-12-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-23_14-23-12-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-23_14-23-12-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_false-valid-free.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-23_14-23-12-892.csv Received shutdown request...