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_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:30:32,579 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:30:32,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:30:32,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:30:32,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:30:32,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:30:32,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:30:32,599 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:30:32,601 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:30:32,602 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:30:32,603 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:30:32,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:30:32,604 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:30:32,605 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:30:32,605 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:30:32,608 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:30:32,610 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:30:32,612 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:30:32,613 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:30:32,614 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:30:32,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 05:30:32,621 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:30:32,621 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:30:32,621 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_precise.epf [2018-01-21 05:30:32,632 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:30:32,632 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:30:32,633 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:30:32,633 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:30:32,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:30:32,633 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:30:32,634 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:30:32,634 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:30:32,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:30:32,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:30:32,635 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:30:32,635 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:30:32,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:30:32,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:30:32,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:30:32,637 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:30:32,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:30:32,637 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:30:32,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:30:32,637 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:30:32,638 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:30:32,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:30:32,638 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:30:32,638 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:30:32,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:30:32,640 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:30:32,640 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:30:32,641 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:30:32,641 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:30:32,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:30:32,689 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:30:32,694 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:30:32,695 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:30:32,696 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:30:32,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-01-21 05:30:32,916 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:30:32,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:30:32,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:30:32,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:30:32,926 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:30:32,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:30:32" (1/1) ... [2018-01-21 05:30:32,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78159b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:32, skipping insertion in model container [2018-01-21 05:30:32,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:30:32" (1/1) ... [2018-01-21 05:30:32,943 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:30:32,979 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:30:33,095 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:30:33,110 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:30:33,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33 WrapperNode [2018-01-21 05:30:33,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:30:33,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:30:33,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:30:33,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:30:33,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (1/1) ... [2018-01-21 05:30:33,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:30:33,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:30:33,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:30:33,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:30:33,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (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 05:30:33,204 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:30:33,204 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:30:33,205 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:30:33,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:30:33,206 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:30:33,388 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:30:33,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:30:33 BoogieIcfgContainer [2018-01-21 05:30:33,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:30:33,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:30:33,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:30:33,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:30:33,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:30:32" (1/3) ... [2018-01-21 05:30:33,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b671e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:30:33, skipping insertion in model container [2018-01-21 05:30:33,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:30:33" (2/3) ... [2018-01-21 05:30:33,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b671e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:30:33, skipping insertion in model container [2018-01-21 05:30:33,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:30:33" (3/3) ... [2018-01-21 05:30:33,397 INFO L105 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe_false-valid-deref.i [2018-01-21 05:30:33,406 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:30:33,414 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 05:30:33,463 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:30:33,463 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:30:33,463 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:30:33,463 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:30:33,464 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:30:33,464 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:30:33,464 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:30:33,464 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 05:30:33,465 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:30:33,485 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 05:30:33,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 05:30:33,491 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:33,492 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 05:30:33,493 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 05:30:33,498 INFO L82 PathProgramCache]: Analyzing trace with hash 100907, now seen corresponding path program 1 times [2018-01-21 05:30:33,501 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:33,553 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:33,553 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:33,553 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:33,553 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:30:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:30:33,612 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:30:33,618 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:30:33,625 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:30:33,625 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:30:33,625 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:30:33,626 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:30:33,626 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:30:33,626 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:30:33,626 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:30:33,626 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 05:30:33,626 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:30:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 05:30:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 05:30:33,630 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:33,630 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] [2018-01-21 05:30:33,630 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:30:33,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1756096489, now seen corresponding path program 1 times [2018-01-21 05:30:33,631 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:33,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:33,632 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:33,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:33,632 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:33,651 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 05:30:33,651 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 05:30:33,651 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-21 05:30:33,660 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:33,660 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-21 05:30:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:33,698 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-21 05:30:33,700 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:30:33,700 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:30:33,700 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 05:30:33,707 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:33,707 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:30:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:33,885 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:30:33,995 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 05:30:33,995 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 05:30:34,034 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 05:30:34,057 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:30:34,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-01-21 05:30:34,058 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:30:34,060 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 05:30:34,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 05:30:34,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:30:34,151 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 6 states. [2018-01-21 05:30:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:30:34,282 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-01-21 05:30:34,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-21 05:30:34,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-01-21 05:30:34,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:30:34,295 INFO L225 Difference]: With dead ends: 60 [2018-01-21 05:30:34,295 INFO L226 Difference]: Without dead ends: 35 [2018-01-21 05:30:34,299 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-01-21 05:30:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-21 05:30:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-21 05:30:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-21 05:30:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-01-21 05:30:34,340 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2018-01-21 05:30:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:30:34,340 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-01-21 05:30:34,340 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 05:30:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-01-21 05:30:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-21 05:30:34,342 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:34,342 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 05:30:34,342 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:30:34,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1252120768, now seen corresponding path program 1 times [2018-01-21 05:30:34,343 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:34,344 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:34,344 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:34,344 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:34,344 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:34,353 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 05:30:34,353 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 05:30:34,353 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-21 05:30:34,361 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:34,361 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-21 05:30:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:34,399 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-21 05:30:34,400 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:30:34,400 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:30:34,400 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 05:30:34,406 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:34,406 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:30:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:34,427 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:30:34,443 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 05:30:34,444 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 05:30:34,462 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 05:30:34,486 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:30:34,486 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-01-21 05:30:34,486 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:30:34,487 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 05:30:34,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 05:30:34,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 05:30:34,488 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 4 states. [2018-01-21 05:30:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:30:34,528 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-01-21 05:30:34,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 05:30:34,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-21 05:30:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:30:34,531 INFO L225 Difference]: With dead ends: 56 [2018-01-21 05:30:34,531 INFO L226 Difference]: Without dead ends: 40 [2018-01-21 05:30:34,532 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 05:30:34,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-21 05:30:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2018-01-21 05:30:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-21 05:30:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-01-21 05:30:34,541 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 27 [2018-01-21 05:30:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:30:34,542 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-01-21 05:30:34,542 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 05:30:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-01-21 05:30:34,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-21 05:30:34,543 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:30:34,543 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] [2018-01-21 05:30:34,544 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:30:34,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1880809997, now seen corresponding path program 1 times [2018-01-21 05:30:34,544 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:30:34,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:34,545 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:34,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:30:34,545 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:30:34,554 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 05:30:34,555 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 05:30:34,555 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-01-21 05:30:34,578 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:30:34,578 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-21 05:30:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:30:34,624 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-01-21 05:30:34,626 INFO L201 CegarAbsIntRunner]: [0], [1], [6], [7], [10], [14], [17], [21], [22], [23], [24], [32], [36], [39], [41], [42], [43], [45], [49], [53], [56], [67], [68], [69], [70], [71], [72], [74], [75], [76], [77] [2018-01-21 05:30:34,678 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:30:34,679 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 05:31:40,897 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 05:31:40,897 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 05:31:40,898 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:31:40,898 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:31:40,898 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 05:31:40,950 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:31:40,950 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:31:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:31:40,987 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:31:40,989 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 05:31:40,989 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:31:40,991 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:31:40,991 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:31:40,991 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:31:40,991 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:31:40,992 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:31:40,992 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:31:40,992 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:31:40,992 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 05:31:40,992 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:31:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 05:31:40,993 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:31:40,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 05:31:40 BoogieIcfgContainer [2018-01-21 05:31:40,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 05:31:40,995 INFO L168 Benchmark]: Toolchain (without parser) took 68078.50 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 263.4 MB in the beginning and 1.2 GB in the end (delta: -969.6 MB). Peak memory consumption was 883.7 MB. Max. memory is 5.3 GB. [2018-01-21 05:31:40,996 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 305.1 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 05:31:40,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.80 ms. Allocated memory is still 305.1 MB. Free memory was 262.5 MB in the beginning and 252.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:31:40,997 INFO L168 Benchmark]: Boogie Preprocessor took 36.69 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:31:40,997 INFO L168 Benchmark]: RCFGBuilder took 234.00 ms. Allocated memory is still 305.1 MB. Free memory was 250.5 MB in the beginning and 234.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. [2018-01-21 05:31:40,997 INFO L168 Benchmark]: TraceAbstraction took 67603.99 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 234.9 MB in the beginning and 1.2 GB in the end (delta: -998.1 MB). Peak memory consumption was 855.2 MB. Max. memory is 5.3 GB. [2018-01-21 05:31:40,999 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 305.1 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 196.80 ms. Allocated memory is still 305.1 MB. Free memory was 262.5 MB in the beginning and 252.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.69 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 234.00 ms. Allocated memory is still 305.1 MB. Free memory was 250.5 MB in the beginning and 234.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 67603.99 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 234.9 MB in the beginning and 1.2 GB in the end (delta: -998.1 MB). Peak memory consumption was 855.2 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, 42 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=42occurred 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 - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while BasicCegarLoop was analyzing trace of length 33 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 3 procedures, 42 locations, 3 error locations. TIMEOUT Result, 67.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 92 SDslu, 92 SDs, 0 SdLazy, 38 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 66.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 4176 SizeOfPredicates, 10 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while IsEmpty was searching accepting run (input had 42 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 3 procedures, 42 locations, 3 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=42occurred 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 proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_05-31-41-009.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_05-31-41-009.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_05-31-41-009.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_05-31-41-009.csv Completed graceful shutdown