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_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:37:37,136 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:37:37,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:37:37,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:37:37,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:37:37,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:37:37,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:37:37,187 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:37:37,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:37:37,190 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:37:37,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:37:37,191 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:37:37,191 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:37:37,192 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:37:37,193 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:37:37,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:37:37,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:37:37,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:37:37,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:37:37,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:37:37,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 08:37:37,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:37:37,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:37:37,211 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-21 08:37:37,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:37:37,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:37:37,223 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:37:37,223 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:37:37,224 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:37:37,224 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:37:37,224 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:37:37,224 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:37:37,224 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:37:37,225 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:37:37,225 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:37:37,225 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:37:37,226 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:37:37,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:37:37,227 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:37:37,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:37:37,227 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:37:37,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:37:37,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:37:37,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:37:37,228 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:37:37,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:37:37,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:37:37,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:37:37,229 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:37:37,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:37:37,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:37:37,229 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:37:37,230 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:37:37,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:37:37,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:37:37,230 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:37:37,230 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:37:37,231 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:37:37,231 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:37:37,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:37:37,273 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:37:37,277 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:37:37,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:37:37,278 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:37:37,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_false-valid-free.i [2018-01-21 08:37:37,444 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:37:37,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:37:37,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:37:37,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:37:37,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:37:37,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79924daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37, skipping insertion in model container [2018-01-21 08:37:37,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,481 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:37:37,519 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:37:37,636 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:37:37,652 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:37:37,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37 WrapperNode [2018-01-21 08:37:37,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:37:37,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:37:37,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:37:37,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:37:37,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (1/1) ... [2018-01-21 08:37:37,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:37:37,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:37:37,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:37:37,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:37:37,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (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 [2018-01-21 08:37:37,739 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:37:37,739 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:37:37,739 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:37:37,739 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:37:37,740 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:37:37,741 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:37:37,741 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:37:37,902 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:37:37,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:37:37 BoogieIcfgContainer [2018-01-21 08:37:37,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:37:37,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:37:37,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:37:37,906 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:37:37,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:37:37" (1/3) ... [2018-01-21 08:37:37,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ee5add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:37:37, skipping insertion in model container [2018-01-21 08:37:37,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:37:37" (2/3) ... [2018-01-21 08:37:37,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ee5add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:37:37, skipping insertion in model container [2018-01-21 08:37:37,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:37:37" (3/3) ... [2018-01-21 08:37:37,909 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-free.i [2018-01-21 08:37:37,916 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:37:37,922 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 08:37:37,966 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:37:37,966 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:37:37,966 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:37:37,966 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:37:37,966 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:37:37,967 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:37:37,967 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:37:37,967 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:37:37,967 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:37:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:37:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:37:37,993 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:37:37,994 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:37:37,994 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:37:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash 66310, now seen corresponding path program 1 times [2018-01-21 08:37:38,000 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:37:38,043 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,043 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:37:38,043 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,044 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:37:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:37:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:37:38,099 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:37:38,105 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:37:38,113 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:37:38,113 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:37:38,113 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:37:38,113 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:37:38,113 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:37:38,114 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:37:38,114 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:37:38,114 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:37:38,114 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:37:38,115 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:37:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 08:37:38,118 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:37:38,118 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] [2018-01-21 08:37:38,118 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:37:38,118 INFO L82 PathProgramCache]: Analyzing trace with hash -673938301, now seen corresponding path program 1 times [2018-01-21 08:37:38,118 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:37:38,119 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,119 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:37:38,119 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,119 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:37:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:37:38,158 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:37:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:37:38,287 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:37:38,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 08:37:38,287 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:37:38,290 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 08:37:38,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 08:37:38,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 08:37:38,379 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-01-21 08:37:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:37:38,497 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2018-01-21 08:37:38,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 08:37:38,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-01-21 08:37:38,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:37:38,511 INFO L225 Difference]: With dead ends: 53 [2018-01-21 08:37:38,512 INFO L226 Difference]: Without dead ends: 37 [2018-01-21 08:37:38,515 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:37:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-21 08:37:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2018-01-21 08:37:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-01-21 08:37:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-01-21 08:37:38,552 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2018-01-21 08:37:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:37:38,553 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-01-21 08:37:38,553 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 08:37:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-01-21 08:37:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 08:37:38,554 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:37:38,554 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] [2018-01-21 08:37:38,554 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:37:38,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1224144099, now seen corresponding path program 1 times [2018-01-21 08:37:38,554 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:37:38,556 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,556 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:37:38,556 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:38,556 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:37:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:37:38,583 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:37:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:37:38,814 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:37:38,814 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 08:37:38,814 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:37:38,816 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 08:37:38,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 08:37:38,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-21 08:37:38,817 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2018-01-21 08:37:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:37:39,055 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-01-21 08:37:39,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 08:37:39,055 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-01-21 08:37:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:37:39,055 INFO L225 Difference]: With dead ends: 29 [2018-01-21 08:37:39,055 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:37:39,056 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-01-21 08:37:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:37:39,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:37:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:37:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:37:39,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-01-21 08:37:39,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:37:39,058 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:37:39,058 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 08:37:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:37:39,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:37:39,061 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:37:39,061 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:37:39,061 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:37:39,061 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:37:39,061 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:37:39,061 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:37:39,061 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:37:39,061 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:37:39,061 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:37:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-01-21 08:37:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-21 08:37:39,063 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:37:39,063 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:37:39,063 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:37:39,064 INFO L82 PathProgramCache]: Analyzing trace with hash 808236360, now seen corresponding path program 1 times [2018-01-21 08:37:39,064 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:37:39,065 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:39,065 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:37:39,065 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:39,065 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:37:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:37:39,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:37:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:37:39,129 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:37:39,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 08:37:39,129 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:37:39,130 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 08:37:39,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 08:37:39,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 08:37:39,130 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-01-21 08:37:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:37:39,185 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2018-01-21 08:37:39,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 08:37:39,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-01-21 08:37:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:37:39,186 INFO L225 Difference]: With dead ends: 53 [2018-01-21 08:37:39,187 INFO L226 Difference]: Without dead ends: 35 [2018-01-21 08:37:39,187 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 08:37:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-21 08:37:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-01-21 08:37:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-21 08:37:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-01-21 08:37:39,192 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 22 [2018-01-21 08:37:39,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:37:39,192 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-01-21 08:37:39,192 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 08:37:39,192 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-01-21 08:37:39,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-21 08:37:39,193 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:37:39,193 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] [2018-01-21 08:37:39,193 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-21 08:37:39,194 INFO L82 PathProgramCache]: Analyzing trace with hash 99597736, now seen corresponding path program 1 times [2018-01-21 08:37:39,194 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:37:39,195 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:39,195 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:37:39,195 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:37:39,195 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:37:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:37:39,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:37:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:37:39,367 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:37:39,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 08:37:39,367 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:37:39,368 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 08:37:39,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 08:37:39,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-21 08:37:39,368 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 8 states. [2018-01-21 08:37:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:37:39,537 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-01-21 08:37:39,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 08:37:39,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-21 08:37:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:37:39,537 INFO L225 Difference]: With dead ends: 27 [2018-01-21 08:37:39,537 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:37:39,538 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-01-21 08:37:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:37:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:37:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:37:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:37:39,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-01-21 08:37:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:37:39,539 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:37:39,539 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 08:37:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:37:39,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:37:39,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:37:39 BoogieIcfgContainer [2018-01-21 08:37:39,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:37:39,542 INFO L168 Benchmark]: Toolchain (without parser) took 2096.87 ms. Allocated memory was 295.2 MB in the beginning and 446.2 MB in the end (delta: 151.0 MB). Free memory was 252.3 MB in the beginning and 309.1 MB in the end (delta: -56.7 MB). Peak memory consumption was 94.3 MB. Max. memory is 5.3 GB. [2018-01-21 08:37:39,543 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 295.2 MB. Free memory is still 258.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:37:39,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.78 ms. Allocated memory is still 295.2 MB. Free memory was 252.3 MB in the beginning and 242.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:37:39,543 INFO L168 Benchmark]: Boogie Preprocessor took 29.76 ms. Allocated memory is still 295.2 MB. Free memory was 242.4 MB in the beginning and 240.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:37:39,544 INFO L168 Benchmark]: RCFGBuilder took 210.67 ms. Allocated memory is still 295.2 MB. Free memory was 240.4 MB in the beginning and 225.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:37:39,544 INFO L168 Benchmark]: TraceAbstraction took 1637.18 ms. Allocated memory was 295.2 MB in the beginning and 446.2 MB in the end (delta: 151.0 MB). Free memory was 223.4 MB in the beginning and 309.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 65.4 MB. Max. memory is 5.3 GB. [2018-01-21 08:37:39,546 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 295.2 MB. Free memory is still 258.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 211.78 ms. Allocated memory is still 295.2 MB. Free memory was 252.3 MB in the beginning and 242.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.76 ms. Allocated memory is still 295.2 MB. Free memory was 242.4 MB in the beginning and 240.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 210.67 ms. Allocated memory is still 295.2 MB. Free memory was 240.4 MB in the beginning and 225.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1637.18 ms. Allocated memory was 295.2 MB in the beginning and 446.2 MB in the end (delta: 151.0 MB). Free memory was 223.4 MB in the beginning and 309.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 65.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 3 procedures, 30 locations, 3 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=30occurred 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 3 procedures, 30 locations, 3 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 32 SDslu, 88 SDs, 0 SdLazy, 61 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 4163 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 - PositiveResult [Line: 620]: 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 3 procedures, 30 locations, 3 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 32 SDslu, 88 SDs, 0 SdLazy, 61 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 3717 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-0158_1_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-37-39-554.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-37-39-554.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-37-39-554.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_false-valid-free.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-37-39-554.csv Received shutdown request...