java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/memsafety/test-0019_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 18:37:23,319 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 18:37:23,320 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 18:37:23,329 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 18:37:23,329 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 18:37:23,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 18:37:23,330 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 18:37:23,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 18:37:23,335 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 18:37:23,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 18:37:23,336 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 18:37:23,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 18:37:23,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 18:37:23,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 18:37:23,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 18:37:23,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 18:37:23,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 18:37:23,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 18:37:23,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 18:37:23,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 18:37:23,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 18:37:23,350 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 18:37:23,350 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 18:37:23,351 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 18:37:23,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 18:37:23,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 18:37:23,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 18:37:23,354 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 18:37:23,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 18:37:23,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 18:37:23,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 18:37:23,355 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 18:37:23,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 18:37:23,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 18:37:23,366 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 18:37:23,366 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 18:37:23,366 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 18:37:23,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 18:37:23,367 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 18:37:23,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:37:23,368 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 18:37:23,368 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 18:37:23,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 18:37:23,369 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 18:37:23,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 18:37:23,404 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 18:37:23,406 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 18:37:23,407 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 18:37:23,408 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 18:37:23,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-02-02 18:37:23,579 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 18:37:23,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 18:37:23,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 18:37:23,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 18:37:23,586 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 18:37:23,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c6a4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23, skipping insertion in model container [2018-02-02 18:37:23,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,601 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:37:23,628 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 18:37:23,722 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:37:23,735 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 18:37:23,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23 WrapperNode [2018-02-02 18:37:23,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 18:37:23,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 18:37:23,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 18:37:23,741 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 18:37:23,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... [2018-02-02 18:37:23,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 18:37:23,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 18:37:23,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 18:37:23,771 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 18:37:23,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 18:37:23,814 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 18:37:23,814 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 18:37:23,814 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-02-02 18:37:23,814 INFO L136 BoogieDeclarations]: Found implementation of procedure free_data [2018-02-02 18:37:23,815 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 18:37:23,815 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_data [2018-02-02 18:37:23,816 INFO L128 BoogieDeclarations]: Found specification of procedure free_data [2018-02-02 18:37:23,816 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 18:37:23,816 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 18:37:23,816 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 18:37:24,040 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 18:37:24,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:37:24 BoogieIcfgContainer [2018-02-02 18:37:24,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 18:37:24,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 18:37:24,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 18:37:24,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 18:37:24,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 06:37:23" (1/3) ... [2018-02-02 18:37:24,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f88a3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:37:24, skipping insertion in model container [2018-02-02 18:37:24,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 06:37:23" (2/3) ... [2018-02-02 18:37:24,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f88a3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 06:37:24, skipping insertion in model container [2018-02-02 18:37:24,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 06:37:24" (3/3) ... [2018-02-02 18:37:24,046 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-02-02 18:37:24,054 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 18:37:24,062 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-02-02 18:37:24,113 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 18:37:24,113 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 18:37:24,113 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 18:37:24,113 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 18:37:24,113 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 18:37:24,114 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 18:37:24,114 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 18:37:24,114 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 18:37:24,114 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 18:37:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-02-02 18:37:24,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-02 18:37:24,131 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:24,132 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:37:24,132 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:24,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1048002709, now seen corresponding path program 1 times [2018-02-02 18:37:24,138 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:24,138 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:24,188 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,188 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:24,189 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:24,259 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:24,429 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:24,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 18:37:24,431 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 18:37:24,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 18:37:24,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:37:24,440 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 5 states. [2018-02-02 18:37:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:24,588 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-02-02 18:37:24,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:37:24,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-02-02 18:37:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:24,595 INFO L225 Difference]: With dead ends: 49 [2018-02-02 18:37:24,595 INFO L226 Difference]: Without dead ends: 46 [2018-02-02 18:37:24,597 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:37:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-02 18:37:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-02-02 18:37:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-02-02 18:37:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-02-02 18:37:24,630 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 10 [2018-02-02 18:37:24,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:24,630 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-02-02 18:37:24,630 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 18:37:24,630 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-02-02 18:37:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-02 18:37:24,630 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:24,631 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:37:24,631 INFO L371 AbstractCegarLoop]: === Iteration 2 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:24,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1048002708, now seen corresponding path program 1 times [2018-02-02 18:37:24,631 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:24,631 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:24,632 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,632 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:24,632 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:24,646 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:24,746 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:24,746 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 18:37:24,747 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 18:37:24,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 18:37:24,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-02-02 18:37:24,748 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 6 states. [2018-02-02 18:37:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:24,897 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-02-02 18:37:24,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 18:37:24,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-02-02 18:37:24,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:24,899 INFO L225 Difference]: With dead ends: 44 [2018-02-02 18:37:24,899 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 18:37:24,900 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-02-02 18:37:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 18:37:24,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-02-02 18:37:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-02-02 18:37:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-02-02 18:37:24,905 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 10 [2018-02-02 18:37:24,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:24,905 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-02-02 18:37:24,905 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 18:37:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-02-02 18:37:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 18:37:24,906 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:24,906 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:37:24,906 INFO L371 AbstractCegarLoop]: === Iteration 3 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:24,907 INFO L82 PathProgramCache]: Analyzing trace with hash 500312934, now seen corresponding path program 1 times [2018-02-02 18:37:24,907 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:24,907 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:24,908 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,908 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:24,908 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:24,924 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:24,978 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:24,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 18:37:24,978 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 18:37:24,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 18:37:24,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-02 18:37:24,979 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-02-02 18:37:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:25,091 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-02-02 18:37:25,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 18:37:25,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-02 18:37:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:25,093 INFO L225 Difference]: With dead ends: 49 [2018-02-02 18:37:25,093 INFO L226 Difference]: Without dead ends: 49 [2018-02-02 18:37:25,093 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-02-02 18:37:25,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-02-02 18:37:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2018-02-02 18:37:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-02 18:37:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-02-02 18:37:25,097 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 17 [2018-02-02 18:37:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:25,098 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-02-02 18:37:25,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 18:37:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-02-02 18:37:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 18:37:25,098 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:25,099 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:37:25,099 INFO L371 AbstractCegarLoop]: === Iteration 4 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:25,099 INFO L82 PathProgramCache]: Analyzing trace with hash 500312935, now seen corresponding path program 1 times [2018-02-02 18:37:25,099 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:25,099 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:25,100 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,100 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:25,100 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:25,113 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:25,212 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:25,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 18:37:25,212 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 18:37:25,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 18:37:25,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-02 18:37:25,213 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 8 states. [2018-02-02 18:37:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:25,299 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-02-02 18:37:25,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 18:37:25,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-02-02 18:37:25,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:25,303 INFO L225 Difference]: With dead ends: 38 [2018-02-02 18:37:25,303 INFO L226 Difference]: Without dead ends: 38 [2018-02-02 18:37:25,303 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-02-02 18:37:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-02 18:37:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-02-02 18:37:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-02 18:37:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-02-02 18:37:25,306 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 17 [2018-02-02 18:37:25,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:25,307 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-02-02 18:37:25,307 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 18:37:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-02-02 18:37:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 18:37:25,307 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:25,308 INFO L351 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] [2018-02-02 18:37:25,308 INFO L371 AbstractCegarLoop]: === Iteration 5 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:25,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1011623589, now seen corresponding path program 1 times [2018-02-02 18:37:25,308 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:25,308 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:25,309 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,309 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:25,309 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:25,320 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:25,431 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:25,432 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 18:37:25,432 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-02 18:37:25,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-02 18:37:25,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-02-02 18:37:25,433 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 11 states. [2018-02-02 18:37:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:25,523 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-02-02 18:37:25,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 18:37:25,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-02-02 18:37:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:25,524 INFO L225 Difference]: With dead ends: 37 [2018-02-02 18:37:25,524 INFO L226 Difference]: Without dead ends: 37 [2018-02-02 18:37:25,525 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-02-02 18:37:25,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-02-02 18:37:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-02-02 18:37:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-02 18:37:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-02-02 18:37:25,527 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 22 [2018-02-02 18:37:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:25,527 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-02-02 18:37:25,527 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-02 18:37:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-02-02 18:37:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 18:37:25,527 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:25,527 INFO L351 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] [2018-02-02 18:37:25,527 INFO L371 AbstractCegarLoop]: === Iteration 6 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:25,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1011623588, now seen corresponding path program 1 times [2018-02-02 18:37:25,528 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:25,528 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:25,528 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,528 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:25,529 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:25,539 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:25,663 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:25,663 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 18:37:25,663 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-02 18:37:25,663 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-02 18:37:25,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-02-02 18:37:25,664 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 11 states. [2018-02-02 18:37:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:25,792 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-02-02 18:37:25,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-02 18:37:25,793 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-02-02 18:37:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:25,795 INFO L225 Difference]: With dead ends: 39 [2018-02-02 18:37:25,795 INFO L226 Difference]: Without dead ends: 39 [2018-02-02 18:37:25,795 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-02-02 18:37:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-02 18:37:25,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-02-02 18:37:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-02 18:37:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-02-02 18:37:25,797 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 22 [2018-02-02 18:37:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:25,797 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-02-02 18:37:25,797 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-02 18:37:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-02-02 18:37:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 18:37:25,798 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:25,798 INFO L351 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] [2018-02-02 18:37:25,798 INFO L371 AbstractCegarLoop]: === Iteration 7 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:25,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1295560179, now seen corresponding path program 1 times [2018-02-02 18:37:25,798 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:25,799 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:25,799 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,800 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:25,800 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:25,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:25,829 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:25,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 18:37:25,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 18:37:25,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 18:37:25,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 18:37:25,830 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 4 states. [2018-02-02 18:37:25,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:25,849 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-02-02 18:37:25,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 18:37:25,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-02-02 18:37:25,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:25,851 INFO L225 Difference]: With dead ends: 38 [2018-02-02 18:37:25,851 INFO L226 Difference]: Without dead ends: 38 [2018-02-02 18:37:25,851 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 18:37:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-02 18:37:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-02-02 18:37:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-02 18:37:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-02-02 18:37:25,854 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2018-02-02 18:37:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:25,854 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-02-02 18:37:25,854 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 18:37:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-02-02 18:37:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 18:37:25,855 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:25,855 INFO L351 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] [2018-02-02 18:37:25,855 INFO L371 AbstractCegarLoop]: === Iteration 8 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:25,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1295560178, now seen corresponding path program 1 times [2018-02-02 18:37:25,856 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:25,856 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:25,857 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,857 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:25,857 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 18:37:25,869 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 18:37:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 18:37:26,132 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 18:37:26,132 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-02-02 18:37:26,133 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-02 18:37:26,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-02 18:37:26,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-02-02 18:37:26,133 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 16 states. [2018-02-02 18:37:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 18:37:26,390 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-02-02 18:37:26,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-02 18:37:26,391 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2018-02-02 18:37:26,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 18:37:26,392 INFO L225 Difference]: With dead ends: 30 [2018-02-02 18:37:26,392 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 18:37:26,392 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2018-02-02 18:37:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 18:37:26,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-02-02 18:37:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-02 18:37:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-02-02 18:37:26,394 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 23 [2018-02-02 18:37:26,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 18:37:26,394 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-02-02 18:37:26,394 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-02 18:37:26,394 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-02-02 18:37:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-02-02 18:37:26,395 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 18:37:26,395 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 18:37:26,395 INFO L371 AbstractCegarLoop]: === Iteration 9 === [alloc_dataErr2RequiresViolation, alloc_dataErr0RequiresViolation, alloc_dataErr1RequiresViolation, alloc_dataErr3RequiresViolation, mainErr0EnsuresViolation, free_dataErr3RequiresViolation, free_dataErr1RequiresViolation, free_dataErr7RequiresViolation, free_dataErr10RequiresViolation, free_dataErr9RequiresViolation, free_dataErr11RequiresViolation, free_dataErr2RequiresViolation, free_dataErr8RequiresViolation, free_dataErr4RequiresViolation, free_dataErr6RequiresViolation, free_dataErr0RequiresViolation, free_dataErr5RequiresViolation]=== [2018-02-02 18:37:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash -117517057, now seen corresponding path program 1 times [2018-02-02 18:37:26,395 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 18:37:26,395 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 18:37:26,396 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:26,396 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 18:37:26,396 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 18:37:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 18:37:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 18:37:26,463 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 18:37:26,476 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-02 18:37:26,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 06:37:26 BoogieIcfgContainer [2018-02-02 18:37:26,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 18:37:26,490 INFO L168 Benchmark]: Toolchain (without parser) took 2910.40 ms. Allocated memory was 403.2 MB in the beginning and 656.4 MB in the end (delta: 253.2 MB). Free memory was 357.2 MB in the beginning and 623.3 MB in the end (delta: -266.0 MB). Peak memory consumption was 166.2 MB. Max. memory is 5.3 GB. [2018-02-02 18:37:26,492 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 403.2 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 18:37:26,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.70 ms. Allocated memory is still 403.2 MB. Free memory was 357.2 MB in the beginning and 347.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. [2018-02-02 18:37:26,492 INFO L168 Benchmark]: Boogie Preprocessor took 30.40 ms. Allocated memory is still 403.2 MB. Free memory was 347.8 MB in the beginning and 345.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 18:37:26,493 INFO L168 Benchmark]: RCFGBuilder took 269.23 ms. Allocated memory is still 403.2 MB. Free memory was 345.1 MB in the beginning and 326.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. [2018-02-02 18:37:26,493 INFO L168 Benchmark]: TraceAbstraction took 2448.48 ms. Allocated memory was 403.2 MB in the beginning and 656.4 MB in the end (delta: 253.2 MB). Free memory was 325.1 MB in the beginning and 623.3 MB in the end (delta: -298.2 MB). Peak memory consumption was 134.0 MB. Max. memory is 5.3 GB. [2018-02-02 18:37:26,494 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 403.2 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.70 ms. Allocated memory is still 403.2 MB. Free memory was 357.2 MB in the beginning and 347.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.40 ms. Allocated memory is still 403.2 MB. Free memory was 347.8 MB in the beginning and 345.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 269.23 ms. Allocated memory is still 403.2 MB. Free memory was 345.1 MB in the beginning and 326.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2448.48 ms. Allocated memory was 403.2 MB in the beginning and 656.4 MB in the end (delta: 253.2 MB). Free memory was 325.1 MB in the beginning and 623.3 MB in the end (delta: -298.2 MB). Peak memory consumption was 134.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 639]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 639. Possible FailurePath: [L640] FCALL TData data; VAL [data={26:0}] [L641] CALL alloc_data(&data) VAL [pdata={26:0}] [L625] EXPR, FCALL malloc(16) VAL [malloc(16)={27:0}, pdata={26:0}, pdata={26:0}] [L625] FCALL pdata->lo = malloc(16) VAL [malloc(16)={27:0}, pdata={26:0}, pdata={26:0}] [L626] EXPR, FCALL malloc(24) VAL [malloc(16)={27:0}, malloc(24)={28:0}, pdata={26:0}, pdata={26:0}] [L626] RET, FCALL pdata->hi = malloc(24) VAL [malloc(16)={27:0}, malloc(24)={28:0}, pdata={26:0}, pdata={26:0}] [L641] alloc_data(&data) VAL [data={26:0}] [L642] CALL free_data(&data) VAL [data={26:0}] [L630] EXPR, FCALL data->lo VAL [data={26:0}, data={26:0}, data->lo={27:0}] [L630] void *lo = data->lo; [L631] EXPR, FCALL data->hi VAL [data={26:0}, data={26:0}, data->hi={28:0}, lo={27:0}] [L631] void *hi = data->hi; [L632] COND FALSE !(lo == hi) VAL [data={26:0}, data={26:0}, hi={28:0}, lo={27:0}] [L636] FCALL data->lo = (void *) 0 VAL [data={26:0}, data={26:0}, hi={28:0}, lo={27:0}] [L637] RET, FCALL data->hi = (void *) 0 VAL [data={26:0}, data={26:0}, hi={28:0}, lo={27:0}] [L642] free_data(&data) VAL [data={26:0}] [L643] return 0; VAL [\result=0, data={26:0}] [L643] return 0; VAL [\result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 17 error locations. UNSAFE Result, 2.3s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 196 SDslu, 666 SDs, 0 SdLazy, 731 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 14783 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_18-37-26-501.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_18-37-26-501.csv Received shutdown request...