java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 20:39:11,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 20:39:11,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 20:39:11,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 20:39:11,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 20:39:11,355 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 20:39:11,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 20:39:11,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 20:39:11,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 20:39:11,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 20:39:11,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 20:39:11,361 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 20:39:11,362 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 20:39:11,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 20:39:11,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 20:39:11,366 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 20:39:11,369 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 20:39:11,371 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 20:39:11,372 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 20:39:11,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 20:39:11,375 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 20:39:11,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 20:39:11,376 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 20:39:11,377 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 20:39:11,378 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 20:39:11,379 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 20:39:11,379 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 20:39:11,380 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 20:39:11,380 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 20:39:11,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 20:39:11,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 20:39:11,381 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf [2018-01-24 20:39:11,390 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 20:39:11,390 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 20:39:11,391 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 20:39:11,391 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 20:39:11,391 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 20:39:11,391 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 20:39:11,391 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 20:39:11,391 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 20:39:11,391 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 20:39:11,392 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 20:39:11,392 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 20:39:11,392 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 20:39:11,392 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 20:39:11,393 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 20:39:11,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 20:39:11,394 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 20:39:11,394 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 20:39:11,394 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 20:39:11,394 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 20:39:11,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 20:39:11,395 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 20:39:11,395 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 20:39:11,396 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 20:39:11,396 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 20:39:11,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 20:39:11,438 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 20:39:11,441 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 20:39:11,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 20:39:11,443 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 20:39:11,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_3_false-valid-memtrack.i [2018-01-24 20:39:11,621 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 20:39:11,626 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 20:39:11,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 20:39:11,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 20:39:11,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 20:39:11,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a251b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11, skipping insertion in model container [2018-01-24 20:39:11,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,650 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:39:11,697 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:39:11,814 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:39:11,835 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:39:11,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11 WrapperNode [2018-01-24 20:39:11,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 20:39:11,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 20:39:11,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 20:39:11,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 20:39:11,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (1/1) ... [2018-01-24 20:39:11,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 20:39:11,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 20:39:11,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 20:39:11,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 20:39:11,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (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 [2018-01-24 20:39:11,938 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 20:39:11,938 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 20:39:11,938 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 20:39:11,938 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_17 [2018-01-24 20:39:11,938 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 20:39:11,939 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 20:39:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_17 [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 20:39:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 20:39:12,187 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 20:39:12,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:39:12 BoogieIcfgContainer [2018-01-24 20:39:12,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 20:39:12,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 20:39:12,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 20:39:12,191 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 20:39:12,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 08:39:11" (1/3) ... [2018-01-24 20:39:12,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6686509e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:39:12, skipping insertion in model container [2018-01-24 20:39:12,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:39:11" (2/3) ... [2018-01-24 20:39:12,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6686509e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:39:12, skipping insertion in model container [2018-01-24 20:39:12,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:39:12" (3/3) ... [2018-01-24 20:39:12,194 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3_false-valid-memtrack.i [2018-01-24 20:39:12,200 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 20:39:12,206 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 20:39:12,254 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 20:39:12,254 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 20:39:12,254 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 20:39:12,254 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 20:39:12,254 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 20:39:12,255 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 20:39:12,255 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 20:39:12,255 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 20:39:12,256 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 20:39:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-24 20:39:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 20:39:12,280 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:12,281 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:12,281 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:12,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1525029176, now seen corresponding path program 1 times [2018-01-24 20:39:12,286 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:12,332 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,333 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:12,333 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,333 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:12,385 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:12,479 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:39:12,480 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 20:39:12,480 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:39:12,483 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 20:39:12,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 20:39:12,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:39:12,575 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-24 20:39:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:12,722 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2018-01-24 20:39:12,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 20:39:12,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-24 20:39:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:12,734 INFO L225 Difference]: With dead ends: 148 [2018-01-24 20:39:12,734 INFO L226 Difference]: Without dead ends: 96 [2018-01-24 20:39:12,737 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:39:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-01-24 20:39:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 63. [2018-01-24 20:39:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 20:39:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-01-24 20:39:12,777 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 17 [2018-01-24 20:39:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:12,778 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-01-24 20:39:12,778 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 20:39:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-01-24 20:39:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 20:39:12,779 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:12,779 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:12,780 INFO L371 AbstractCegarLoop]: === Iteration 2 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:12,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1524292544, now seen corresponding path program 1 times [2018-01-24 20:39:12,780 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:12,782 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,782 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:12,782 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,782 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:12,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:12,868 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:39:12,868 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 20:39:12,868 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:39:12,870 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:39:12,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:39:12,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:39:12,871 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 5 states. [2018-01-24 20:39:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:12,911 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-01-24 20:39:12,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:39:12,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-24 20:39:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:12,913 INFO L225 Difference]: With dead ends: 116 [2018-01-24 20:39:12,913 INFO L226 Difference]: Without dead ends: 63 [2018-01-24 20:39:12,914 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:39:12,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-24 20:39:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-01-24 20:39:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 20:39:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-01-24 20:39:12,923 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 17 [2018-01-24 20:39:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:12,923 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-01-24 20:39:12,924 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:39:12,924 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-01-24 20:39:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 20:39:12,925 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:12,925 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:12,925 INFO L371 AbstractCegarLoop]: === Iteration 3 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239334, now seen corresponding path program 1 times [2018-01-24 20:39:12,925 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:12,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,927 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:12,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:12,927 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:12,944 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:12,994 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:39:12,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 20:39:12,994 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:39:12,995 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 20:39:12,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 20:39:12,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 20:39:12,995 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 6 states. [2018-01-24 20:39:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:13,052 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-24 20:39:13,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 20:39:13,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 20:39:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:13,053 INFO L225 Difference]: With dead ends: 65 [2018-01-24 20:39:13,054 INFO L226 Difference]: Without dead ends: 61 [2018-01-24 20:39:13,054 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 20:39:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-24 20:39:13,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-01-24 20:39:13,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-01-24 20:39:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-01-24 20:39:13,061 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2018-01-24 20:39:13,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:13,062 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-01-24 20:39:13,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 20:39:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-01-24 20:39:13,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 20:39:13,063 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:13,063 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:13,063 INFO L371 AbstractCegarLoop]: === Iteration 4 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:13,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975966, now seen corresponding path program 1 times [2018-01-24 20:39:13,063 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:13,065 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,065 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:13,065 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,065 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:13,079 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:13,137 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:39:13,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 20:39:13,137 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:39:13,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 20:39:13,138 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 20:39:13,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 20:39:13,138 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 6 states. [2018-01-24 20:39:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:13,238 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-01-24 20:39:13,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 20:39:13,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 20:39:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:13,239 INFO L225 Difference]: With dead ends: 61 [2018-01-24 20:39:13,240 INFO L226 Difference]: Without dead ends: 60 [2018-01-24 20:39:13,240 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 20:39:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-24 20:39:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-24 20:39:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-24 20:39:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-01-24 20:39:13,246 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 19 [2018-01-24 20:39:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:13,246 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-01-24 20:39:13,246 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 20:39:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-01-24 20:39:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 20:39:13,247 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:13,247 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:13,247 INFO L371 AbstractCegarLoop]: === Iteration 5 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:13,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1268975965, now seen corresponding path program 1 times [2018-01-24 20:39:13,247 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:13,248 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,248 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:13,249 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,249 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:13,262 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:13,645 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:39:13,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 20:39:13,645 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:39:13,645 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 20:39:13,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 20:39:13,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-01-24 20:39:13,646 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-01-24 20:39:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:13,863 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2018-01-24 20:39:13,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 20:39:13,863 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-24 20:39:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:13,865 INFO L225 Difference]: With dead ends: 110 [2018-01-24 20:39:13,865 INFO L226 Difference]: Without dead ends: 64 [2018-01-24 20:39:13,866 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-01-24 20:39:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-24 20:39:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2018-01-24 20:39:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 20:39:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-01-24 20:39:13,873 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 19 [2018-01-24 20:39:13,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:13,874 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-01-24 20:39:13,874 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 20:39:13,874 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-01-24 20:39:13,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 20:39:13,875 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:13,875 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:13,875 INFO L371 AbstractCegarLoop]: === Iteration 6 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:13,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1174934022, now seen corresponding path program 1 times [2018-01-24 20:39:13,876 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:13,877 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,878 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:13,878 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:13,878 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:13,895 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:14,247 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:39:14,281 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 20:39:14,282 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-01-24 20:39:14,283 INFO L201 CegarAbsIntRunner]: [3], [6], [7], [8], [10], [11], [12], [69], [71], [74], [78], [83], [84], [86], [88], [101], [105], [106], [107], [109], [110] [2018-01-24 20:39:14,327 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 20:39:14,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 20:39:23,140 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 20:39:23,141 INFO L268 AbstractInterpreter]: Visited 21 different actions 26 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 19 variables. [2018-01-24 20:39:23,151 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 20:39:23,151 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:39:23,151 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 20:39:23,161 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:23,162 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 20:39:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:23,195 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 20:39:23,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 20:39:23,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:23,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 20:39:23,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:23,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 20:39:23,283 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 20:39:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:23,580 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 20:39:24,092 WARN L146 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 36 DAG size of output 27 [2018-01-24 20:39:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:24,125 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:39:24,125 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 20:39:24,129 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:24,129 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 20:39:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:24,155 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 20:39:24,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 20:39:24,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:24,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 20:39:24,176 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:24,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 20:39:24,186 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 20:39:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:24,266 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 20:39:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:24,716 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 20:39:24,716 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 9, 10] total 31 [2018-01-24 20:39:24,717 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 20:39:24,717 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 20:39:24,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 20:39:24,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2018-01-24 20:39:24,718 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 18 states. [2018-01-24 20:39:25,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:39:25,065 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-01-24 20:39:25,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 20:39:25,065 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2018-01-24 20:39:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:39:25,066 INFO L225 Difference]: With dead ends: 114 [2018-01-24 20:39:25,066 INFO L226 Difference]: Without dead ends: 68 [2018-01-24 20:39:25,067 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 61 SyntacticMatches, 9 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2018-01-24 20:39:25,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-24 20:39:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-01-24 20:39:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 20:39:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-01-24 20:39:25,074 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 23 [2018-01-24 20:39:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:39:25,074 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-01-24 20:39:25,074 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 20:39:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-01-24 20:39:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 20:39:25,075 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:39:25,075 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:39:25,075 INFO L371 AbstractCegarLoop]: === Iteration 7 === [alloc_17Err4RequiresViolation, alloc_17Err6RequiresViolation, alloc_17Err2RequiresViolation, alloc_17Err0RequiresViolation, alloc_17Err1RequiresViolation, alloc_17Err7RequiresViolation, alloc_17Err3RequiresViolation, alloc_17Err5RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-24 20:39:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash 614865, now seen corresponding path program 2 times [2018-01-24 20:39:25,076 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:39:25,077 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:25,077 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:39:25,078 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:39:25,078 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:39:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:39:25,093 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:39:25,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:25,342 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:39:25,342 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 20:39:25,343 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 20:39:25,343 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 20:39:25,343 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:39:25,343 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 20:39:25,348 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 20:39:25,348 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 20:39:25,358 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 20:39:25,362 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 20:39:25,362 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 20:39:25,364 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 20:39:25,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-01-24 20:39:25,379 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:25,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-01-24 20:39:25,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 20:39:25,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 20:39:25,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-01-24 20:39:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:39:25,654 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 20:39:26,533 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 1296 Received shutdown request... [2018-01-24 20:40:15,651 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-24 20:40:15,683 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 20:40:15,686 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 20:40:15,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 08:40:15 BoogieIcfgContainer [2018-01-24 20:40:15,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 20:40:15,687 INFO L168 Benchmark]: Toolchain (without parser) took 64065.52 ms. Allocated memory was 304.1 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 261.4 MB in the beginning and 1.2 GB in the end (delta: -955.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-01-24 20:40:15,688 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 20:40:15,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.13 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 20:40:15,688 INFO L168 Benchmark]: Boogie Preprocessor took 36.32 ms. Allocated memory is still 304.1 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 20:40:15,688 INFO L168 Benchmark]: RCFGBuilder took 305.66 ms. Allocated memory is still 304.1 MB. Free memory was 245.4 MB in the beginning and 226.7 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. [2018-01-24 20:40:15,689 INFO L168 Benchmark]: TraceAbstraction took 63497.82 ms. Allocated memory was 304.1 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 224.7 MB in the beginning and 1.2 GB in the end (delta: -992.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-01-24 20:40:15,691 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.13 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.32 ms. Allocated memory is still 304.1 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 305.66 ms. Allocated memory is still 304.1 MB. Free memory was 245.4 MB in the beginning and 226.7 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 63497.82 ms. Allocated memory was 304.1 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 224.7 MB in the beginning and 1.2 GB in the end (delta: -992.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 20 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 4 LocStat_NO_SUPPORTING_EQUALITIES : 123 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -40 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 12 TransStat_MAX_SIZEOF_WEQEDGELABEL : 4 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 5 TransStat_NO_DISJUNCTIONS : 31 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.570109 RENAME_VARIABLES(MILLISECONDS) : 1.887677 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.529484 PROJECTAWAY(MILLISECONDS) : 1.803720 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.093480 DISJOIN(MILLISECONDS) : 1.767392 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.970119 ADD_EQUALITY(MILLISECONDS) : 0.017023 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008139 #CONJOIN_DISJUNCTIVE : 42 #RENAME_VARIABLES : 69 #UNFREEZE : 0 #CONJOIN : 82 #PROJECTAWAY : 67 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 1 #RENAME_VARIABLES_DISJUNCTIVE : 66 #ADD_EQUALITY : 51 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1452). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1446). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1446). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1452). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1451). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1471]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1471). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1467). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1467). Cancelled while BasicCegarLoop was analyzing trace of length 28 with TraceHistMax 3, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1296 disjunction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 62 locations, 13 error locations. TIMEOUT Result, 63.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 343 SDtfs, 150 SDslu, 1135 SDs, 0 SdLazy, 409 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 72 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.8s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 37 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 196 ConstructedInterpolants, 28 QuantifiedInterpolants, 56510 SizeOfPredicates, 10 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 0/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_20-40-15-700.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_20-40-15-700.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_20-40-15-700.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_20-40-15-700.csv Completed graceful shutdown