java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0019_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 22:08:32,085 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 22:08:32,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 22:08:32,103 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 22:08:32,103 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 22:08:32,104 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 22:08:32,105 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 22:08:32,107 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 22:08:32,109 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 22:08:32,110 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 22:08:32,111 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 22:08:32,111 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 22:08:32,112 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 22:08:32,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 22:08:32,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 22:08:32,117 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 22:08:32,119 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 22:08:32,121 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 22:08:32,123 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 22:08:32,124 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 22:08:32,126 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 22:08:32,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 22:08:32,132 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 22:08:32,132 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 22:08:32,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 22:08:32,142 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 22:08:32,142 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 22:08:32,143 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 22:08:32,143 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 22:08:32,143 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 22:08:32,143 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 22:08:32,143 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 22:08:32,144 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 22:08:32,145 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 22:08:32,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 22:08:32,146 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 22:08:32,146 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 22:08:32,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 22:08:32,146 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 22:08:32,146 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 22:08:32,147 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 22:08:32,148 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 22:08:32,148 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 22:08:32,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 22:08:32,195 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 22:08:32,199 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 22:08:32,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 22:08:32,201 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 22:08:32,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0019_1_false-valid-memtrack_true-termination.i [2018-01-20 22:08:32,374 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 22:08:32,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 22:08:32,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 22:08:32,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 22:08:32,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 22:08:32,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f9b563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32, skipping insertion in model container [2018-01-20 22:08:32,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,405 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:08:32,445 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:08:32,564 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:08:32,580 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:08:32,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32 WrapperNode [2018-01-20 22:08:32,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 22:08:32,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 22:08:32,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 22:08:32,587 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 22:08:32,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... [2018-01-20 22:08:32,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 22:08:32,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 22:08:32,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 22:08:32,624 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 22:08:32,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 22:08:32,671 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 22:08:32,671 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 22:08:32,672 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-01-20 22:08:32,672 INFO L136 BoogieDeclarations]: Found implementation of procedure free_data [2018-01-20 22:08:32,672 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 22:08:32,672 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_data [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure free_data [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 22:08:32,673 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 22:08:32,874 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 22:08:32,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:08:32 BoogieIcfgContainer [2018-01-20 22:08:32,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 22:08:32,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 22:08:32,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 22:08:32,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 22:08:32,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 10:08:32" (1/3) ... [2018-01-20 22:08:32,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53490dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:08:32, skipping insertion in model container [2018-01-20 22:08:32,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:08:32" (2/3) ... [2018-01-20 22:08:32,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53490dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:08:32, skipping insertion in model container [2018-01-20 22:08:32,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:08:32" (3/3) ... [2018-01-20 22:08:32,881 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0019_1_false-valid-memtrack_true-termination.i [2018-01-20 22:08:32,887 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 22:08:32,893 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-20 22:08:32,934 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:08:32,934 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:08:32,934 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:08:32,934 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:08:32,934 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:08:32,935 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:08:32,935 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:08:32,935 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 22:08:32,936 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:08:32,949 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-01-20 22:08:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 22:08:32,953 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:32,954 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 22:08:32,954 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 22:08:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 79476, now seen corresponding path program 1 times [2018-01-20 22:08:32,960 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:32,960 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:33,000 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,000 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:33,000 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:08:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:08:33,054 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:08:33,061 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:08:33,067 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:08:33,067 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:08:33,067 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:08:33,067 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:08:33,067 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:08:33,067 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:08:33,067 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:08:33,067 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 22:08:33,067 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:08:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-01-20 22:08:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-20 22:08:33,071 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:33,071 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:08:33,071 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:08:33,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1611677620, now seen corresponding path program 1 times [2018-01-20 22:08:33,072 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:33,072 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:33,073 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,073 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:33,073 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:08:33,152 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:08:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:08:33,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:08:33,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-20 22:08:33,439 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 22:08:33,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 22:08:33,524 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-20 22:08:33,527 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 6 states. [2018-01-20 22:08:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:08:33,720 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-01-20 22:08:33,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 22:08:33,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-01-20 22:08:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:08:33,761 INFO L225 Difference]: With dead ends: 47 [2018-01-20 22:08:33,761 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:08:33,764 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-20 22:08:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:08:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:08:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:08:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:08:33,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-01-20 22:08:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:08:33,794 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:08:33,794 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 22:08:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:08:33,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:08:33,797 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:08:33,798 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:08:33,798 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:08:33,798 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:08:33,798 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:08:33,798 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:08:33,798 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:08:33,798 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == alloc_dataErr0EnsuresViolation======== [2018-01-20 22:08:33,798 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:08:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-01-20 22:08:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 22:08:33,801 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:33,801 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:08:33,801 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_dataErr0EnsuresViolation]=== [2018-01-20 22:08:33,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1972392963, now seen corresponding path program 1 times [2018-01-20 22:08:33,802 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:33,802 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:33,803 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,803 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:33,803 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:08:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:08:33,855 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:08:33,861 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:08:33,864 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:08:33,874 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:08:33,874 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:08:33,874 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:08:33,875 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:08:33,875 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:08:33,875 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:08:33,875 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:08:33,875 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 22:08:33,875 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:08:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-01-20 22:08:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-20 22:08:33,879 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:33,879 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:08:33,879 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 22:08:33,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1637429456, now seen corresponding path program 1 times [2018-01-20 22:08:33,880 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:33,880 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:33,881 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,881 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:33,881 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:08:33,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:08:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:08:34,008 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:08:34,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-20 22:08:34,010 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 22:08:34,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 22:08:34,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-20 22:08:34,011 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 6 states. [2018-01-20 22:08:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:08:34,137 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-01-20 22:08:34,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 22:08:34,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-01-20 22:08:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:08:34,138 INFO L225 Difference]: With dead ends: 47 [2018-01-20 22:08:34,138 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:08:34,139 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-20 22:08:34,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:08:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:08:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:08:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:08:34,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-01-20 22:08:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:08:34,140 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:08:34,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 22:08:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:08:34,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:08:34,141 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:08:34,141 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:08:34,141 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:08:34,141 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:08:34,141 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:08:34,141 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:08:34,141 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:08:34,142 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == free_dataErr0EnsuresViolation======== [2018-01-20 22:08:34,142 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:08:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-01-20 22:08:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-20 22:08:34,144 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:34,144 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:08:34,144 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_dataErr0EnsuresViolation]=== [2018-01-20 22:08:34,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1876223610, now seen corresponding path program 1 times [2018-01-20 22:08:34,145 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:34,145 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:34,145 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:34,145 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:34,146 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:08:34,161 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:08:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:08:34,193 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:08:34,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:08:34,194 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:08:34,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:08:34,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:08:34,194 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2018-01-20 22:08:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:08:34,289 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-01-20 22:08:34,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:08:34,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-01-20 22:08:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:08:34,292 INFO L225 Difference]: With dead ends: 51 [2018-01-20 22:08:34,293 INFO L226 Difference]: Without dead ends: 35 [2018-01-20 22:08:34,293 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:08:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-20 22:08:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-20 22:08:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-20 22:08:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2018-01-20 22:08:34,302 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 32 [2018-01-20 22:08:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:08:34,302 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2018-01-20 22:08:34,302 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:08:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2018-01-20 22:08:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-20 22:08:34,303 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:08:34,303 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:08:34,303 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_dataErr0EnsuresViolation]=== [2018-01-20 22:08:34,304 INFO L82 PathProgramCache]: Analyzing trace with hash 716090473, now seen corresponding path program 1 times [2018-01-20 22:08:34,304 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:08:34,304 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:08:34,305 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:34,305 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:08:34,305 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:08:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:08:34,323 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:08:34,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:08:34,392 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:08:34,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-20 22:08:34,394 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 22:08:34,394 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 22:08:34,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-20 22:08:34,394 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 6 states. [2018-01-20 22:08:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:08:34,514 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-01-20 22:08:34,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 22:08:34,515 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-01-20 22:08:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:08:34,515 INFO L225 Difference]: With dead ends: 35 [2018-01-20 22:08:34,515 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:08:34,516 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-20 22:08:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:08:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:08:34,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:08:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:08:34,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-01-20 22:08:34,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:08:34,518 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:08:34,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 22:08:34,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:08:34,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:08:34,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:08:34 BoogieIcfgContainer [2018-01-20 22:08:34,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 22:08:34,523 INFO L168 Benchmark]: Toolchain (without parser) took 2147.60 ms. Allocated memory was 298.3 MB in the beginning and 448.8 MB in the end (delta: 150.5 MB). Free memory was 255.7 MB in the beginning and 320.8 MB in the end (delta: -65.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 5.3 GB. [2018-01-20 22:08:34,524 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 298.3 MB. Free memory is still 261.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 22:08:34,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.67 ms. Allocated memory is still 298.3 MB. Free memory was 255.7 MB in the beginning and 245.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:08:34,525 INFO L168 Benchmark]: Boogie Preprocessor took 36.85 ms. Allocated memory is still 298.3 MB. Free memory was 245.7 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:08:34,525 INFO L168 Benchmark]: RCFGBuilder took 251.20 ms. Allocated memory is still 298.3 MB. Free memory was 243.6 MB in the beginning and 225.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-01-20 22:08:34,526 INFO L168 Benchmark]: TraceAbstraction took 1646.13 ms. Allocated memory was 298.3 MB in the beginning and 448.8 MB in the end (delta: 150.5 MB). Free memory was 225.1 MB in the beginning and 320.8 MB in the end (delta: -95.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 5.3 GB. [2018-01-20 22:08:34,527 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 298.3 MB. Free memory is still 261.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 206.67 ms. Allocated memory is still 298.3 MB. Free memory was 255.7 MB in the beginning and 245.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.85 ms. Allocated memory is still 298.3 MB. Free memory was 245.7 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 251.20 ms. Allocated memory is still 298.3 MB. Free memory was 243.6 MB in the beginning and 225.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1646.13 ms. Allocated memory was 298.3 MB in the beginning and 448.8 MB in the end (delta: 150.5 MB). Free memory was 225.1 MB in the beginning and 320.8 MB in the end (delta: -95.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 47 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 47 locations, 5 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 4 SDslu, 23 SDs, 0 SdLazy, 35 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 4370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 623]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L642] FCALL TData data; VAL [data={12:0}] [L643] CALL alloc_data(&data) VAL [pdata={12:0}] [L625] EXPR, FCALL malloc(sizeof(int)) VAL [malloc(sizeof(int))={13:0}, pdata={12:0}, pdata={12:0}] [L625] FCALL pdata->lo = (int *)malloc(sizeof(int)) VAL [malloc(sizeof(int))={13:0}, pdata={12:0}, pdata={12:0}] [L626] EXPR, FCALL malloc(sizeof(int)) VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}] [L626] FCALL pdata->hi = (int *)malloc(sizeof(int)) VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}] [L627] EXPR, FCALL pdata->lo VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}, pdata->lo={13:0}] [L627] FCALL *(pdata->lo) = 4 VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}, pdata->lo={13:0}] [L628] EXPR, FCALL pdata->hi VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}, pdata->hi={16:0}] [L628] FCALL *(pdata->hi) = 8 VAL [malloc(sizeof(int))={13:0}, malloc(sizeof(int))={16:0}, pdata={12:0}, pdata={12:0}, pdata->hi={16:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: alloc_dataErr0EnsuresViolation CFG has 5 procedures, 47 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 641]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 47 locations, 5 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 4 SDslu, 23 SDs, 0 SdLazy, 35 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 4068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 630]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: free_dataErr0EnsuresViolation CFG has 5 procedures, 47 locations, 5 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 6 SDslu, 35 SDs, 0 SdLazy, 49 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 5273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_22-08-34-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_22-08-34-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_22-08-34-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_22-08-34-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_22-08-34-539.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_22-08-34-539.csv Received shutdown request...