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-0158_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 12:25:49,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 12:25:49,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 12:25:49,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 12:25:49,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 12:25:49,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 12:25:49,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 12:25:49,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 12:25:49,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 12:25:49,047 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 12:25:49,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 12:25:49,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 12:25:49,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 12:25:49,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 12:25:49,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 12:25:49,052 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 12:25:49,054 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 12:25:49,055 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 12:25:49,056 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 12:25:49,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 12:25:49,059 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 12:25:49,059 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 12:25:49,059 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 12:25:49,060 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 12:25:49,061 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 12:25:49,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 12:25:49,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 12:25:49,062 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 12:25:49,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 12:25:49,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 12:25:49,063 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 12:25:49,063 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 [2018-02-04 12:25:49,071 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 12:25:49,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 12:25:49,072 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 12:25:49,072 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 12:25:49,073 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 12:25:49,073 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 12:25:49,074 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 12:25:49,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 12:25:49,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 12:25:49,075 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 12:25:49,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 12:25:49,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 12:25:49,109 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 12:25:49,111 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 12:25:49,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 12:25:49,112 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 12:25:49,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-free.i [2018-02-04 12:25:49,246 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 12:25:49,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 12:25:49,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 12:25:49,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 12:25:49,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 12:25:49,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7495b65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49, skipping insertion in model container [2018-02-04 12:25:49,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,270 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:25:49,300 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:25:49,382 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:25:49,397 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:25:49,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49 WrapperNode [2018-02-04 12:25:49,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 12:25:49,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 12:25:49,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 12:25:49,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 12:25:49,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (1/1) ... [2018-02-04 12:25:49,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 12:25:49,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 12:25:49,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 12:25:49,437 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 12:25:49,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (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 [2018-02-04 12:25:49,488 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 12:25:49,488 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 12:25:49,488 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 12:25:49,488 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 12:25:49,488 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 12:25:49,489 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 12:25:49,490 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 12:25:49,621 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 12:25:49,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:25:49 BoogieIcfgContainer [2018-02-04 12:25:49,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 12:25:49,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 12:25:49,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 12:25:49,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 12:25:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 12:25:49" (1/3) ... [2018-02-04 12:25:49,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d62f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:25:49, skipping insertion in model container [2018-02-04 12:25:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:25:49" (2/3) ... [2018-02-04 12:25:49,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d62f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:25:49, skipping insertion in model container [2018-02-04 12:25:49,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:25:49" (3/3) ... [2018-02-04 12:25:49,627 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-free.i [2018-02-04 12:25:49,632 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 12:25:49,636 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-02-04 12:25:49,664 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 12:25:49,664 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 12:25:49,664 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 12:25:49,664 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 12:25:49,664 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 12:25:49,664 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 12:25:49,665 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 12:25:49,665 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 12:25:49,665 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 12:25:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-02-04 12:25:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 12:25:49,678 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:49,679 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:49,679 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:49,683 INFO L82 PathProgramCache]: Analyzing trace with hash -875651709, now seen corresponding path program 1 times [2018-02-04 12:25:49,684 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:49,684 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:49,717 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:49,718 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:49,718 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:25:49,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:25:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:25:49,822 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:25:49,822 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 12:25:49,823 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 12:25:49,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 12:25:49,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 12:25:49,832 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-02-04 12:25:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:25:49,881 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-02-04 12:25:49,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 12:25:49,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-02-04 12:25:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:25:49,890 INFO L225 Difference]: With dead ends: 33 [2018-02-04 12:25:49,890 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 12:25:49,892 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 12:25:49,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 12:25:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-02-04 12:25:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-04 12:25:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-02-04 12:25:49,955 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 8 [2018-02-04 12:25:49,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:25:49,955 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-02-04 12:25:49,955 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 12:25:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-02-04 12:25:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 12:25:49,955 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:49,956 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:49,956 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash -875651708, now seen corresponding path program 1 times [2018-02-04 12:25:49,956 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:49,956 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:49,957 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:49,957 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:49,957 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:25:49,972 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:25:50,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:25:50,040 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:25:50,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 12:25:50,042 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 12:25:50,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 12:25:50,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 12:25:50,042 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 4 states. [2018-02-04 12:25:50,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:25:50,091 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-02-04 12:25:50,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 12:25:50,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 12:25:50,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:25:50,092 INFO L225 Difference]: With dead ends: 25 [2018-02-04 12:25:50,092 INFO L226 Difference]: Without dead ends: 25 [2018-02-04 12:25:50,093 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 12:25:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-02-04 12:25:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-02-04 12:25:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 12:25:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-02-04 12:25:50,096 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 8 [2018-02-04 12:25:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:25:50,096 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-02-04 12:25:50,096 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 12:25:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-02-04 12:25:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 12:25:50,097 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:50,097 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:50,097 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:50,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1516119050, now seen corresponding path program 1 times [2018-02-04 12:25:50,097 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:50,097 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:50,098 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,098 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:50,098 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:25:50,113 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:25:50,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:25:50,171 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:25:50,171 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 12:25:50,172 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 12:25:50,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 12:25:50,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 12:25:50,172 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 5 states. [2018-02-04 12:25:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:25:50,198 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-02-04 12:25:50,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 12:25:50,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 12:25:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:25:50,199 INFO L225 Difference]: With dead ends: 24 [2018-02-04 12:25:50,199 INFO L226 Difference]: Without dead ends: 24 [2018-02-04 12:25:50,200 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 12:25:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-02-04 12:25:50,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-02-04 12:25:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-02-04 12:25:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-02-04 12:25:50,202 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2018-02-04 12:25:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:25:50,203 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-02-04 12:25:50,203 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 12:25:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-02-04 12:25:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 12:25:50,203 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:50,203 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:50,204 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:50,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1516119051, now seen corresponding path program 1 times [2018-02-04 12:25:50,204 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:50,204 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:50,204 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,205 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:50,205 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:25:50,217 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:25:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:25:50,261 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:25:50,261 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 12:25:50,261 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 12:25:50,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 12:25:50,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 12:25:50,262 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 5 states. [2018-02-04 12:25:50,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:25:50,325 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-02-04 12:25:50,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 12:25:50,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 12:25:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:25:50,327 INFO L225 Difference]: With dead ends: 23 [2018-02-04 12:25:50,327 INFO L226 Difference]: Without dead ends: 23 [2018-02-04 12:25:50,327 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 12:25:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-02-04 12:25:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-02-04 12:25:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-02-04 12:25:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-02-04 12:25:50,329 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 14 [2018-02-04 12:25:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:25:50,330 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-02-04 12:25:50,330 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 12:25:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-02-04 12:25:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 12:25:50,330 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:50,331 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:50,331 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:50,331 INFO L82 PathProgramCache]: Analyzing trace with hash 996493579, now seen corresponding path program 1 times [2018-02-04 12:25:50,331 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:50,331 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:50,332 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,332 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:50,332 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:25:50,345 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:25:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:25:50,402 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:25:50,402 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 12:25:50,402 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 12:25:50,403 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 12:25:50,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 12:25:50,403 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 6 states. [2018-02-04 12:25:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:25:50,454 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-02-04 12:25:50,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 12:25:50,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 12:25:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:25:50,455 INFO L225 Difference]: With dead ends: 22 [2018-02-04 12:25:50,455 INFO L226 Difference]: Without dead ends: 22 [2018-02-04 12:25:50,456 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-04 12:25:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-02-04 12:25:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-02-04 12:25:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-02-04 12:25:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-02-04 12:25:50,458 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2018-02-04 12:25:50,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:25:50,458 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-02-04 12:25:50,458 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 12:25:50,458 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-02-04 12:25:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 12:25:50,461 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:25:50,461 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:25:50,461 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 12:25:50,462 INFO L82 PathProgramCache]: Analyzing trace with hash 996493580, now seen corresponding path program 1 times [2018-02-04 12:25:50,462 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:25:50,462 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:25:50,463 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,463 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:25:50,463 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:25:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 12:25:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 12:25:50,516 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 12:25:50,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 12:25:50 BoogieIcfgContainer [2018-02-04 12:25:50,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 12:25:50,532 INFO L168 Benchmark]: Toolchain (without parser) took 1285.33 ms. Allocated memory was 402.1 MB in the beginning and 608.7 MB in the end (delta: 206.6 MB). Free memory was 356.2 MB in the beginning and 502.0 MB in the end (delta: -145.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 5.3 GB. [2018-02-04 12:25:50,533 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 12:25:50,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.07 ms. Allocated memory is still 402.1 MB. Free memory was 356.2 MB in the beginning and 345.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 5.3 GB. [2018-02-04 12:25:50,533 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 402.1 MB. Free memory was 345.3 MB in the beginning and 344.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 12:25:50,533 INFO L168 Benchmark]: RCFGBuilder took 184.80 ms. Allocated memory is still 402.1 MB. Free memory was 344.0 MB in the beginning and 325.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:25:50,534 INFO L168 Benchmark]: TraceAbstraction took 909.60 ms. Allocated memory was 402.1 MB in the beginning and 608.7 MB in the end (delta: 206.6 MB). Free memory was 325.5 MB in the beginning and 502.0 MB in the end (delta: -176.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 5.3 GB. [2018-02-04 12:25:50,534 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 157.07 ms. Allocated memory is still 402.1 MB. Free memory was 356.2 MB in the beginning and 345.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 402.1 MB. Free memory was 345.3 MB in the beginning and 344.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 184.80 ms. Allocated memory is still 402.1 MB. Free memory was 344.0 MB in the beginning and 325.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 909.60 ms. Allocated memory was 402.1 MB in the beginning and 608.7 MB in the end (delta: 206.6 MB). Free memory was 325.5 MB in the beginning and 502.0 MB in the end (delta: -176.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L742-L749] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={40:0}] [L750] EXPR, FCALL malloc(37U) VAL [data={40:0}, malloc(37U)={43:0}] [L750] FCALL data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={43:0}] [L751] FCALL data.str.p2 = &data VAL [data={40:0}, malloc(37U)={43:0}] [L752] EXPR, FCALL data.p0 VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}] [L752] void *ptr = data.p0; [L753] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={40:0}, malloc(37U)={43:0}, ptr={43:0}] [L754] EXPR, FCALL data.p0 VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}, ptr={43:0}] [L754] FCALL free(data.p0) VAL [data={40:0}, data.p0={43:0}, malloc(37U)={43:0}, ptr={43:0}] [L755] FCALL free(ptr) VAL [data={40:0}, malloc(37U)={43:0}, ptr={43:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 15 error locations. UNSAFE Result, 0.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 79 SDtfs, 82 SDslu, 105 SDs, 0 SdLazy, 108 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 3120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_12-25-50-541.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_12-25-50-541.csv Received shutdown request...