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/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 19:29:27,638 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 19:29:27,639 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 19:29:27,652 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 19:29:27,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 19:29:27,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 19:29:27,654 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 19:29:27,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 19:29:27,658 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 19:29:27,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 19:29:27,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 19:29:27,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 19:29:27,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 19:29:27,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 19:29:27,662 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 19:29:27,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 19:29:27,665 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 19:29:27,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 19:29:27,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 19:29:27,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 19:29:27,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 19:29:27,674 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 19:29:27,674 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 19:29:27,674 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 19:29:27,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 19:29:27,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 19:29:27,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 19:29:27,685 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 19:29:27,686 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 19:29:27,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 19:29:27,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 19:29:27,686 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 19:29:27,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 19:29:27,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 19:29:27,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 19:29:27,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 19:29:27,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 19:29:27,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 19:29:27,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 19:29:27,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 19:29:27,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 19:29:27,688 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 19:29:27,689 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 19:29:27,689 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 19:29:27,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 19:29:27,735 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 19:29:27,740 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 19:29:27,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 19:29:27,741 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 19:29:27,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-02 19:29:27,888 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 19:29:27,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 19:29:27,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 19:29:27,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 19:29:27,895 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 19:29:27,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:29:27" (1/1) ... [2018-02-02 19:29:27,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0a5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:27, skipping insertion in model container [2018-02-02 19:29:27,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:29:27" (1/1) ... [2018-02-02 19:29:27,911 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:29:27,957 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:29:28,042 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:29:28,052 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:29:28,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28 WrapperNode [2018-02-02 19:29:28,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 19:29:28,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 19:29:28,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 19:29:28,059 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 19:29:28,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (1/1) ... [2018-02-02 19:29:28,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 19:29:28,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 19:29:28,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 19:29:28,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 19:29:28,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (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 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure h5 [2018-02-02 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-02-02 19:29:28,129 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 19:29:28,130 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure h5 [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 19:29:28,130 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 19:29:28,131 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 19:29:28,262 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 19:29:28,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:29:28 BoogieIcfgContainer [2018-02-02 19:29:28,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 19:29:28,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 19:29:28,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 19:29:28,267 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 19:29:28,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 07:29:27" (1/3) ... [2018-02-02 19:29:28,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709242f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:29:28, skipping insertion in model container [2018-02-02 19:29:28,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:29:28" (2/3) ... [2018-02-02 19:29:28,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709242f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:29:28, skipping insertion in model container [2018-02-02 19:29:28,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:29:28" (3/3) ... [2018-02-02 19:29:28,270 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-02 19:29:28,277 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 19:29:28,282 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 19:29:28,317 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 19:29:28,317 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 19:29:28,318 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 19:29:28,318 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 19:29:28,318 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 19:29:28,320 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 19:29:28,320 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 19:29:28,320 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 19:29:28,321 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 19:29:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-02 19:29:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 19:29:28,344 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:28,344 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] [2018-02-02 19:29:28,345 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:28,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818119, now seen corresponding path program 1 times [2018-02-02 19:29:28,349 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:28,349 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:28,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,386 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:28,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:28,431 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:28,566 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 19:29:28,568 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:28,569 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 19:29:28,570 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 19:29:28,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 19:29:28,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-02-02 19:29:28,580 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 9 states. [2018-02-02 19:29:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:28,726 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2018-02-02 19:29:28,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 19:29:28,728 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-02-02 19:29:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:28,737 INFO L225 Difference]: With dead ends: 48 [2018-02-02 19:29:28,738 INFO L226 Difference]: Without dead ends: 45 [2018-02-02 19:29:28,739 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-02 19:29:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-02-02 19:29:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-02 19:29:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-02-02 19:29:28,767 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 20 [2018-02-02 19:29:28,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:28,767 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-02-02 19:29:28,767 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 19:29:28,767 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-02-02 19:29:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 19:29:28,768 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:28,768 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] [2018-02-02 19:29:28,768 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:28,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818118, now seen corresponding path program 1 times [2018-02-02 19:29:28,768 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:28,768 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:28,770 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,770 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:28,771 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:28,784 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:28,841 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 19:29:28,841 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:28,841 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 19:29:28,842 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 19:29:28,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 19:29:28,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-02-02 19:29:28,843 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 9 states. [2018-02-02 19:29:28,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:28,882 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2018-02-02 19:29:28,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 19:29:28,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-02-02 19:29:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:28,888 INFO L225 Difference]: With dead ends: 46 [2018-02-02 19:29:28,888 INFO L226 Difference]: Without dead ends: 46 [2018-02-02 19:29:28,889 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-02 19:29:28,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-02-02 19:29:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-02 19:29:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-02-02 19:29:28,894 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2018-02-02 19:29:28,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:28,894 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-02-02 19:29:28,894 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 19:29:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-02-02 19:29:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 19:29:28,895 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:28,895 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 19:29:28,895 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:28,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905065, now seen corresponding path program 1 times [2018-02-02 19:29:28,895 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:28,895 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:28,897 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,897 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:28,897 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:28,910 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:28,975 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 19:29:28,975 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:28,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-02 19:29:28,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 19:29:28,975 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 19:29:28,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:28,976 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 10 states. [2018-02-02 19:29:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,019 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-02-02 19:29:29,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-02 19:29:29,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-02-02 19:29:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,020 INFO L225 Difference]: With dead ends: 41 [2018-02-02 19:29:29,021 INFO L226 Difference]: Without dead ends: 41 [2018-02-02 19:29:29,021 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-02 19:29:29,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-02 19:29:29,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-02 19:29:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-02 19:29:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-02-02 19:29:29,025 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 22 [2018-02-02 19:29:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,026 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-02-02 19:29:29,026 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 19:29:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-02-02 19:29:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 19:29:29,026 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:29,027 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 19:29:29,027 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905064, now seen corresponding path program 1 times [2018-02-02 19:29:29,027 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:29,027 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:29,028 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,028 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:29,028 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:29,041 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:29,116 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 19:29:29,117 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:29,117 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-02 19:29:29,117 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 19:29:29,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 19:29:29,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:29,117 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-02-02 19:29:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,223 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-02-02 19:29:29,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 19:29:29,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-02-02 19:29:29,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,224 INFO L225 Difference]: With dead ends: 44 [2018-02-02 19:29:29,224 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 19:29:29,224 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-02 19:29:29,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 19:29:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2018-02-02 19:29:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-02 19:29:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-02-02 19:29:29,228 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2018-02-02 19:29:29,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,229 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-02-02 19:29:29,229 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 19:29:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-02-02 19:29:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 19:29:29,229 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:29,230 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] [2018-02-02 19:29:29,230 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:29,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1043029204, now seen corresponding path program 1 times [2018-02-02 19:29:29,230 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:29,230 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:29,232 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,232 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:29,232 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:29,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:29,286 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 19:29:29,286 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:29,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 19:29:29,287 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 19:29:29,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 19:29:29,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 19:29:29,287 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 3 states. [2018-02-02 19:29:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,305 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-02-02 19:29:29,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 19:29:29,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-02-02 19:29:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,306 INFO L225 Difference]: With dead ends: 40 [2018-02-02 19:29:29,306 INFO L226 Difference]: Without dead ends: 37 [2018-02-02 19:29:29,307 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 19:29:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-02-02 19:29:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-02-02 19:29:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-02 19:29:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-02 19:29:29,312 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2018-02-02 19:29:29,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,312 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-02 19:29:29,313 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 19:29:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-02 19:29:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 19:29:29,314 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:29,314 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] [2018-02-02 19:29:29,314 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1685081515, now seen corresponding path program 1 times [2018-02-02 19:29:29,314 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:29,314 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:29,315 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,315 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:29,315 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:29,320 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:29,399 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 19:29:29,399 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:29,399 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 19:29:29,400 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 19:29:29,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 19:29:29,400 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:29,400 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 10 states. [2018-02-02 19:29:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,448 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-02-02 19:29:29,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 19:29:29,449 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-02-02 19:29:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,449 INFO L225 Difference]: With dead ends: 37 [2018-02-02 19:29:29,449 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 19:29:29,449 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-02-02 19:29:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 19:29:29,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-02-02 19:29:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-02 19:29:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-02-02 19:29:29,451 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2018-02-02 19:29:29,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,451 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-02-02 19:29:29,451 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 19:29:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-02-02 19:29:29,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 19:29:29,452 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:29,452 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] [2018-02-02 19:29:29,452 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:29,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1527636810, now seen corresponding path program 1 times [2018-02-02 19:29:29,452 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:29,452 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:29,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,453 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:29,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:29,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:29,522 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 19:29:29,522 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:29,522 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 19:29:29,522 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-02 19:29:29,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-02 19:29:29,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:29:29,523 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 10 states. [2018-02-02 19:29:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,570 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-02-02 19:29:29,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 19:29:29,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-02-02 19:29:29,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,570 INFO L225 Difference]: With dead ends: 30 [2018-02-02 19:29:29,571 INFO L226 Difference]: Without dead ends: 28 [2018-02-02 19:29:29,571 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-02 19:29:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-02-02 19:29:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-02-02 19:29:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-02 19:29:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-02-02 19:29:29,573 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 26 [2018-02-02 19:29:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,573 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-02-02 19:29:29,573 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-02 19:29:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-02-02 19:29:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 19:29:29,573 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:29:29,573 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] [2018-02-02 19:29:29,573 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-02 19:29:29,574 INFO L82 PathProgramCache]: Analyzing trace with hash -228650675, now seen corresponding path program 1 times [2018-02-02 19:29:29,574 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:29:29,574 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:29:29,574 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,574 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:29:29,575 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:29:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:29:29,591 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:29:29,716 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 19:29:29,716 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:29:29,716 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-02 19:29:29,717 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-02 19:29:29,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-02 19:29:29,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-02-02 19:29:29,717 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 11 states. [2018-02-02 19:29:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:29:29,814 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-02-02 19:29:29,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-02 19:29:29,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2018-02-02 19:29:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:29:29,815 INFO L225 Difference]: With dead ends: 27 [2018-02-02 19:29:29,815 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 19:29:29,815 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-02-02 19:29:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 19:29:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 19:29:29,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 19:29:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 19:29:29,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-02-02 19:29:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:29:29,816 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 19:29:29,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-02 19:29:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 19:29:29,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 19:29:29,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 07:29:29 BoogieIcfgContainer [2018-02-02 19:29:29,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 19:29:29,820 INFO L168 Benchmark]: Toolchain (without parser) took 1931.98 ms. Allocated memory was 405.8 MB in the beginning and 631.2 MB in the end (delta: 225.4 MB). Free memory was 362.7 MB in the beginning and 542.4 MB in the end (delta: -179.7 MB). Peak memory consumption was 45.8 MB. Max. memory is 5.3 GB. [2018-02-02 19:29:29,821 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 405.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 19:29:29,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.60 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 349.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 19:29:29,821 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 405.8 MB. Free memory was 349.5 MB in the beginning and 346.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 19:29:29,822 INFO L168 Benchmark]: RCFGBuilder took 175.63 ms. Allocated memory is still 405.8 MB. Free memory was 346.8 MB in the beginning and 332.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-02-02 19:29:29,822 INFO L168 Benchmark]: TraceAbstraction took 1555.87 ms. Allocated memory was 405.8 MB in the beginning and 631.2 MB in the end (delta: 225.4 MB). Free memory was 332.8 MB in the beginning and 542.4 MB in the end (delta: -209.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. [2018-02-02 19:29:29,823 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 405.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.60 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 349.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 405.8 MB. Free memory was 349.5 MB in the beginning and 346.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 175.63 ms. Allocated memory is still 405.8 MB. Free memory was 346.8 MB in the beginning and 332.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1555.87 ms. Allocated memory was 405.8 MB in the beginning and 631.2 MB in the end (delta: 225.4 MB). Free memory was 332.8 MB in the beginning and 542.4 MB in the end (delta: -209.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1449]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 3 error locations. SAFE Result, 1.5s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 65 SDslu, 1168 SDs, 0 SdLazy, 579 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=1, 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, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 15048 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 proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_19-29-29-830.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_19-29-29-830.csv Received shutdown request...