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_smtcomp.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/complex_data_creation_test02_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 10:23:49,714 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 10:23:49,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 10:23:49,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 10:23:49,734 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 10:23:49,735 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 10:23:49,736 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 10:23:49,738 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 10:23:49,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 10:23:49,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 10:23:49,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-01-21 10:23:49,763 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_smtcomp.epf [2018-01-21 10:23:49,772 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 10:23:49,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 10:23:49,774 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 10:23:49,774 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 10:23:49,774 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 10:23:49,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 10:23:49,774 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 10:23:49,775 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 10:23:49,775 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 10:23:49,775 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 10:23:49,776 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 10:23:49,776 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 10:23:49,776 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 10:23:49,776 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 10:23:49,776 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 10:23:49,777 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 10:23:49,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 10:23:49,778 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 10:23:49,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 10:23:49,778 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 10:23:49,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 10:23:49,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:23:49,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 10:23:49,779 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 10:23:49,779 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 10:23:49,779 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 10:23:49,780 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 10:23:49,781 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 10:23:49,782 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 10:23:49,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 10:23:49,830 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 10:23:49,834 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 10:23:49,835 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 10:23:49,836 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 10:23:49,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/complex_data_creation_test02_true-valid-memsafety.i [2018-01-21 10:23:50,047 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 10:23:50,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 10:23:50,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 10:23:50,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 10:23:50,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 10:23:50,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44478139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50, skipping insertion in model container [2018-01-21 10:23:50,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,076 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:23:50,114 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:23:50,242 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:23:50,271 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:23:50,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50 WrapperNode [2018-01-21 10:23:50,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 10:23:50,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 10:23:50,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 10:23:50,285 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 10:23:50,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (1/1) ... [2018-01-21 10:23:50,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 10:23:50,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 10:23:50,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 10:23:50,332 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 10:23:50,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (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 10:23:50,381 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 10:23:50,381 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 10:23:50,381 INFO L136 BoogieDeclarations]: Found implementation of procedure create_data [2018-01-21 10:23:50,381 INFO L136 BoogieDeclarations]: Found implementation of procedure freeData [2018-01-21 10:23:50,381 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-01-21 10:23:50,382 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 10:23:50,382 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure create_data [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure freeData [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 10:23:50,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 10:23:50,837 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 10:23:50,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:23:50 BoogieIcfgContainer [2018-01-21 10:23:50,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 10:23:50,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 10:23:50,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 10:23:50,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 10:23:50,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:23:50" (1/3) ... [2018-01-21 10:23:50,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257880ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:23:50, skipping insertion in model container [2018-01-21 10:23:50,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:23:50" (2/3) ... [2018-01-21 10:23:50,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257880ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:23:50, skipping insertion in model container [2018-01-21 10:23:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:23:50" (3/3) ... [2018-01-21 10:23:50,847 INFO L105 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02_true-valid-memsafety.i [2018-01-21 10:23:50,857 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 10:23:50,866 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-01-21 10:23:50,919 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:23:50,919 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:23:50,919 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:23:50,919 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:23:50,919 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:23:50,920 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:23:50,920 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:23:50,920 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == create_dataErr0EnsuresViolation======== [2018-01-21 10:23:50,921 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:23:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:23:50,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-21 10:23:50,953 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:23:50,954 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] [2018-01-21 10:23:50,954 INFO L371 AbstractCegarLoop]: === Iteration 1 === [create_dataErr0EnsuresViolation]=== [2018-01-21 10:23:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 15807653, now seen corresponding path program 1 times [2018-01-21 10:23:50,962 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:23:51,021 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,021 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:23:51,021 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,021 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:23:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:23:51,099 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:23:51,173 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 10:23:51,175 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:23:51,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 10:23:51,176 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:23:51,180 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:23:51,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:23:51,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:23:51,298 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 3 states. [2018-01-21 10:23:51,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:23:51,359 INFO L93 Difference]: Finished difference Result 254 states and 292 transitions. [2018-01-21 10:23:51,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:23:51,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-01-21 10:23:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:23:51,373 INFO L225 Difference]: With dead ends: 254 [2018-01-21 10:23:51,373 INFO L226 Difference]: Without dead ends: 99 [2018-01-21 10:23:51,378 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:23:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-01-21 10:23:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-01-21 10:23:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-01-21 10:23:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2018-01-21 10:23:51,425 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 25 [2018-01-21 10:23:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:23:51,426 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2018-01-21 10:23:51,426 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:23:51,426 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2018-01-21 10:23:51,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-21 10:23:51,428 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:23:51,428 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] [2018-01-21 10:23:51,428 INFO L371 AbstractCegarLoop]: === Iteration 2 === [create_dataErr0EnsuresViolation]=== [2018-01-21 10:23:51,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1450780190, now seen corresponding path program 1 times [2018-01-21 10:23:51,429 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:23:51,430 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,430 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:23:51,430 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,431 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:23:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:23:51,455 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:23:51,547 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 10:23:51,547 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:23:51,547 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 10:23:51,547 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:23:51,549 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 10:23:51,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 10:23:51,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 10:23:51,550 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand 4 states. [2018-01-21 10:23:51,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:23:51,598 INFO L93 Difference]: Finished difference Result 243 states and 272 transitions. [2018-01-21 10:23:51,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 10:23:51,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-21 10:23:51,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:23:51,600 INFO L225 Difference]: With dead ends: 243 [2018-01-21 10:23:51,600 INFO L226 Difference]: Without dead ends: 152 [2018-01-21 10:23:51,602 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 10:23:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-01-21 10:23:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2018-01-21 10:23:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-21 10:23:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 167 transitions. [2018-01-21 10:23:51,612 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 167 transitions. Word has length 27 [2018-01-21 10:23:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:23:51,612 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 167 transitions. [2018-01-21 10:23:51,612 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 10:23:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 167 transitions. [2018-01-21 10:23:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 10:23:51,613 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:23:51,613 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] [2018-01-21 10:23:51,613 INFO L371 AbstractCegarLoop]: === Iteration 3 === [create_dataErr0EnsuresViolation]=== [2018-01-21 10:23:51,613 INFO L82 PathProgramCache]: Analyzing trace with hash 300506494, now seen corresponding path program 1 times [2018-01-21 10:23:51,614 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:23:51,614 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,615 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:23:51,615 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,615 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:23:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:23:51,638 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:23:51,674 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 10:23:51,675 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:23:51,675 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:23:51,675 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:23:51,675 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:23:51,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:23:51,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:23:51,676 INFO L87 Difference]: Start difference. First operand 151 states and 167 transitions. Second operand 3 states. [2018-01-21 10:23:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:23:51,725 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2018-01-21 10:23:51,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:23:51,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-01-21 10:23:51,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:23:51,728 INFO L225 Difference]: With dead ends: 153 [2018-01-21 10:23:51,728 INFO L226 Difference]: Without dead ends: 152 [2018-01-21 10:23:51,729 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 [2018-01-21 10:23:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-01-21 10:23:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-01-21 10:23:51,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-01-21 10:23:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 168 transitions. [2018-01-21 10:23:51,742 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 168 transitions. Word has length 29 [2018-01-21 10:23:51,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:23:51,742 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 168 transitions. [2018-01-21 10:23:51,742 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:23:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 168 transitions. [2018-01-21 10:23:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-21 10:23:51,744 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:23:51,745 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, 1, 1, 1, 1, 1, 1] [2018-01-21 10:23:51,745 INFO L371 AbstractCegarLoop]: === Iteration 4 === [create_dataErr0EnsuresViolation]=== [2018-01-21 10:23:51,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1126752096, now seen corresponding path program 1 times [2018-01-21 10:23:51,745 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:23:51,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,746 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:23:51,747 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,747 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:23:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:23:51,777 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:23:51,826 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 10:23:51,826 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:23:51,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 10:23:51,826 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:23:51,827 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 10:23:51,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 10:23:51,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:23:51,828 INFO L87 Difference]: Start difference. First operand 152 states and 168 transitions. Second operand 3 states. [2018-01-21 10:23:51,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:23:51,879 INFO L93 Difference]: Finished difference Result 310 states and 347 transitions. [2018-01-21 10:23:51,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 10:23:51,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-01-21 10:23:51,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:23:51,881 INFO L225 Difference]: With dead ends: 310 [2018-01-21 10:23:51,881 INFO L226 Difference]: Without dead ends: 166 [2018-01-21 10:23:51,883 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 10:23:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-01-21 10:23:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 156. [2018-01-21 10:23:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-01-21 10:23:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 172 transitions. [2018-01-21 10:23:51,895 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 172 transitions. Word has length 45 [2018-01-21 10:23:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:23:51,895 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 172 transitions. [2018-01-21 10:23:51,896 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 10:23:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 172 transitions. [2018-01-21 10:23:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-01-21 10:23:51,898 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:23:51,898 INFO L322 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:23:51,898 INFO L371 AbstractCegarLoop]: === Iteration 5 === [create_dataErr0EnsuresViolation]=== [2018-01-21 10:23:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1796279385, now seen corresponding path program 1 times [2018-01-21 10:23:51,898 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:23:51,899 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,899 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:23:51,900 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:23:51,900 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:23:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:23:51,925 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:23:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:23:51,983 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:23:51,983 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 10:23:51,984 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-01-21 10:23:51,986 INFO L201 CegarAbsIntRunner]: [0], [7], [14], [15], [16], [17], [18], [19], [23], [26], [28], [29], [30], [31], [32], [34], [38], [39], [43], [45], [52], [54], [61], [65], [75], [76], [77], [81], [83], [86], [104], [106], [107], [108], [109], [113], [181], [182], [188], [189], [190], [191], [192], [193], [194], [197], [212], [216], [217], [218], [220] [2018-01-21 10:23:52,032 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 10:23:52,032 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 10:24:52,520 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-21 10:24:52,522 INFO L268 AbstractInterpreter]: Visited 51 different actions 75 times. Merged at 24 different actions 24 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 43 variables. [2018-01-21 10:24:52,541 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-21 10:24:52,541 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:24:52,542 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 10:24:52,566 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:24:52,566 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 10:24:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:24:52,618 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 10:24:52,626 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 10:24:52,627 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,631 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:24:52,631 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:24:52,632 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:24:52,632 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:24:52,632 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:24:52,632 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:24:52,632 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:24:52,632 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == freeDataErr0EnsuresViolation======== [2018-01-21 10:24:52,632 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:24:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:24:52,635 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,637 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:24:52,637 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:24:52,637 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:24:52,637 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:24:52,638 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:24:52,638 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:24:52,638 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:24:52,638 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 10:24:52,638 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:24:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:24:52,640 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,642 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:24:52,642 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:24:52,642 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:24:52,642 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:24:52,643 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:24:52,643 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:24:52,643 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:24:52,643 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 10:24:52,643 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:24:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:24:52,645 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,646 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:24:52,646 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:24:52,646 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:24:52,646 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:24:52,646 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:24:52,647 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:24:52,647 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:24:52,647 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 10:24:52,647 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:24:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:24:52,648 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,649 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:24:52,649 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:24:52,650 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:24:52,650 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:24:52,650 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:24:52,650 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:24:52,650 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:24:52,650 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == appendErr0EnsuresViolation======== [2018-01-21 10:24:52,650 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:24:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-01-21 10:24:52,652 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:24:52,652 WARN L187 ceAbstractionStarter]: Timeout [2018-01-21 10:24:52,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 10:24:52 BoogieIcfgContainer [2018-01-21 10:24:52,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 10:24:52,654 INFO L168 Benchmark]: Toolchain (without parser) took 62606.56 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 265.5 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 129.1 MB. Max. memory is 5.3 GB. [2018-01-21 10:24:52,654 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:24:52,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.63 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 253.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. [2018-01-21 10:24:52,655 INFO L168 Benchmark]: Boogie Preprocessor took 46.26 ms. Allocated memory is still 307.2 MB. Free memory was 253.4 MB in the beginning and 251.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:24:52,655 INFO L168 Benchmark]: RCFGBuilder took 506.83 ms. Allocated memory is still 307.2 MB. Free memory was 251.5 MB in the beginning and 215.5 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:24:52,656 INFO L168 Benchmark]: TraceAbstraction took 61813.30 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 215.5 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 79.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:24:52,657 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.63 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 253.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.26 ms. Allocated memory is still 307.2 MB. Free memory was 253.4 MB in the beginning and 251.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 506.83 ms. Allocated memory is still 307.2 MB. Free memory was 251.5 MB in the beginning and 215.5 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 61813.30 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 215.5 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 79.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 50 LocStat_MAX_WEQGRAPH_SIZE : 24 LocStat_MAX_SIZEOF_WEQEDGELABEL : 8 LocStat_NO_SUPPORTING_EQUALITIES : 947 LocStat_NO_SUPPORTING_DISEQUALITIES : 289 LocStat_NO_DISJUNCTIONS : -100 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 59 TransStat_MAX_WEQGRAPH_SIZE : 14 TransStat_MAX_SIZEOF_WEQEDGELABEL : 3 TransStat_NO_SUPPORTING_EQUALITIES : 120 TransStat_NO_SUPPORTING_DISEQUALITIES : 20 TransStat_NO_DISJUNCTIONS : 65 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1449.503631 RENAME_VARIABLES(MILLISECONDS) : 213.207762 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1449.436648 PROJECTAWAY(MILLISECONDS) : 0.191826 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.038268 DISJOIN(MILLISECONDS) : 33.613002 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 213.274080 ADD_EQUALITY(MILLISECONDS) : 0.009502 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010624 #CONJOIN_DISJUNCTIVE : 121 #RENAME_VARIABLES : 179 #UNFREEZE : 0 #CONJOIN : 215 #PROJECTAWAY : 153 #ADD_WEAK_EQUALITY : 51 #DISJOIN : 3 #RENAME_VARIABLES_DISJUNCTIVE : 169 #ADD_EQUALITY : 146 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 8 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while BasicCegarLoop was analyzing trace of length 53 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 4 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: create_dataErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 61.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 459 SDtfs, 66 SDslu, 529 SDs, 0 SdLazy, 43 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 572]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 572). Cancelled while IsEmpty was searching accepting run (input had 131 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: freeDataErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while IsEmpty was searching accepting run (input had 131 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while IsEmpty was searching accepting run (input had 131 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 586]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 586). Cancelled while IsEmpty was searching accepting run (input had 131 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 576]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 576). Cancelled while IsEmpty was searching accepting run (input had 131 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: appendErr0EnsuresViolation CFG has 6 procedures, 131 locations, 6 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_10-24-52-666.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test02_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-21_10-24-52-666.csv Completed graceful shutdown