java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:35:45,570 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:35:45,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:35:45,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:35:45,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:35:45,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:35:45,589 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:35:45,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:35:45,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:35:45,593 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:35:45,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:35:45,620 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2018-12-03 20:35:45,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:35:45,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:35:45,635 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:35:45,636 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:35:45,636 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:35:45,636 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:35:45,636 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:35:45,637 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:35:45,637 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:35:45,637 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:35:45,637 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:35:45,637 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:35:45,638 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:35:45,638 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:35:45,639 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:35:45,639 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:35:45,639 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:35:45,639 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:35:45,640 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:35:45,640 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:35:45,640 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:35:45,640 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:35:45,640 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:35:45,641 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:35:45,641 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:35:45,641 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:35:45,641 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:35:45,641 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:35:45,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:35:45,642 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:35:45,642 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:35:45,642 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:35:45,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:35:45,643 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:35:45,643 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:35:45,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:35:45,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:35:45,644 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:35:45,644 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:35:45,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:35:45,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:35:45,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:35:45,697 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:35:45,698 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:35:45,699 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl [2018-12-03 20:35:45,699 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl' [2018-12-03 20:35:45,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:35:45,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:35:45,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:35:45,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:35:45,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:35:45,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:35:45,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:35:45,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:35:45,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:35:45,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... [2018-12-03 20:35:45,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:35:45,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:35:45,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:35:45,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:35:45,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:35:45" (1/1) ... No working directory specified, using /storage/repos/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 [2018-12-03 20:35:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:35:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:35:46,092 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:35:46,092 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:35:46,093 INFO L202 PluginConnector]: Adding new model underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:35:46 BoogieIcfgContainer [2018-12-03 20:35:46,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:35:46,094 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:35:46,094 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:35:46,095 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:35:46,096 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:35:46" (1/1) ... [2018-12-03 20:35:46,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:35:46,281 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:35:46,649 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:35:46,673 INFO L272 AbstractInterpreter]: Visited 5 different actions 31 times. Merged at 3 different actions 17 times. Widened at 1 different actions 5 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 20:35:46,675 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:35:46,677 INFO L168 Benchmark]: Toolchain (without parser) took 936.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 20:35:46,679 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:35:46,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:35:46,681 INFO L168 Benchmark]: Boogie Preprocessor took 23.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:35:46,682 INFO L168 Benchmark]: RCFGBuilder took 283.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 20:35:46,683 INFO L168 Benchmark]: Abstract Interpretation took 581.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 20:35:46,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 283.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 581.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 36]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L10] havoc main_#res; [L11] havoc main_#t~post0, main_~x~4, main_~y~4; [L12] main_~x~4 := 0; [L13] main_~y~4 := 1; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L21] assume !(main_~x~4 % 4294967296 < 6); [L22] __VERIFIER_assert_#in~cond := (if main_~x~4 % 4294967296 != 6 then 1 else 0); [L23] havoc __VERIFIER_assert_~cond; [L24] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L25] assume __VERIFIER_assert_~cond == 0; [L26] assume !false; [L36] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...