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_oct.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:55:09,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:55:09,612 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:55:09,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:55:09,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:55:09,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:55:09,628 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:55:09,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:55:09,632 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:55:09,633 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:55:09,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:55:09,662 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-03 20:55:09,677 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:55:09,677 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:55:09,679 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:55:09,679 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:55:09,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:55:09,680 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:55:09,680 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:55:09,680 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:55:09,680 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:55:09,681 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:55:09,681 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:55:09,681 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:55:09,681 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:55:09,682 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:55:09,683 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:55:09,683 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:55:09,683 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:55:09,684 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:55:09,684 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:55:09,684 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:55:09,684 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:55:09,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:55:09,685 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:55:09,685 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:55:09,685 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:55:09,685 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:55:09,685 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:55:09,686 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:55:09,686 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:55:09,686 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:55:09,686 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:55:09,686 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:55:09,687 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:55:09,687 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:55:09,687 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:55:09,687 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:55:09,687 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:55:09,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:55:09,688 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:55:09,688 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:55:09,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:55:09,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:55:09,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:55:09,759 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:55:09,760 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:55:09,762 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-12-03 20:55:09,763 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl' [2018-12-03 20:55:09,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:55:09,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:55:09,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:55:09,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:55:09,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:55:09,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:55:09,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:55:09,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:55:09,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:55:09,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:55:09,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:55:09,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:55:09,942 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:55:09,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (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 20:55:10,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:55:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:55:10,563 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:55:10,563 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:55:10,564 INFO L202 PluginConnector]: Adding new model pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:55:10 BoogieIcfgContainer [2018-12-03 20:55:10,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:55:10,565 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:55:10,565 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:55:10,566 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:55:10,567 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:55:10" (1/1) ... [2018-12-03 20:55:10,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:55:11,088 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:55:19,355 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:55:19,376 INFO L272 AbstractInterpreter]: Visited 20 different actions 174 times. Merged at 17 different actions 110 times. Widened at 8 different actions 20 times. Found 39 fixpoints after 11 different actions. Largest state had 0 variables. [2018-12-03 20:55:19,379 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:55:19,380 INFO L168 Benchmark]: Toolchain (without parser) took 9550.28 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-12-03 20:55:19,383 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:55:19,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:55:19,385 INFO L168 Benchmark]: Boogie Preprocessor took 56.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 20:55:19,386 INFO L168 Benchmark]: RCFGBuilder took 624.08 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-03 20:55:19,387 INFO L168 Benchmark]: Abstract Interpretation took 8814.21 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 73.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-12-03 20:55:19,394 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 0.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 624.08 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 8814.21 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 73.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 299]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L84] ~r1 := 0; [L85] ~p1_old := 0; [L86] ~p1_new := 0; [L87] ~id1 := 0; [L88] ~st1 := 0; [L89] ~mode1 := 0; [L90] ~p2_old := 0; [L91] ~p2_new := 0; [L92] ~id2 := 0; [L93] ~st2 := 0; [L94] ~mode2 := 0; [L95] ~p3_old := 0; [L96] ~p3_new := 0; [L97] ~id3 := 0; [L98] ~st3 := 0; [L99] ~mode3 := 0; [L100] ~nomsg := -1; [L101] ~send1 := 0; [L102] ~send2 := 0; [L103] ~send3 := 0; [L104] havoc main_#res; [L105] havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~ret16, main_#t~ret17, main_~c1~74, main_~i2~74; [L106] havoc main_~c1~74; [L107] havoc main_~i2~74; [L108] main_~c1~74 := 0; [L109] ~r1 := main_#t~nondet3; [L110] havoc main_#t~nondet3; [L111] assume -128 <= main_#t~nondet4 && main_#t~nondet4 <= 127; [L112] ~id1 := main_#t~nondet4; [L113] havoc main_#t~nondet4; [L114] assume -128 <= main_#t~nondet5 && main_#t~nondet5 <= 127; [L115] ~st1 := main_#t~nondet5; [L116] havoc main_#t~nondet5; [L117] assume -128 <= main_#t~nondet6 && main_#t~nondet6 <= 127; [L118] ~send1 := main_#t~nondet6; [L119] havoc main_#t~nondet6; [L120] ~mode1 := main_#t~nondet7; [L121] havoc main_#t~nondet7; [L122] assume -128 <= main_#t~nondet8 && main_#t~nondet8 <= 127; [L123] ~id2 := main_#t~nondet8; [L124] havoc main_#t~nondet8; [L125] assume -128 <= main_#t~nondet9 && main_#t~nondet9 <= 127; [L126] ~st2 := main_#t~nondet9; [L127] havoc main_#t~nondet9; [L128] assume -128 <= main_#t~nondet10 && main_#t~nondet10 <= 127; [L129] ~send2 := main_#t~nondet10; [L130] havoc main_#t~nondet10; [L131] ~mode2 := main_#t~nondet11; [L132] havoc main_#t~nondet11; [L133] assume -128 <= main_#t~nondet12 && main_#t~nondet12 <= 127; [L134] ~id3 := main_#t~nondet12; [L135] havoc main_#t~nondet12; [L136] assume -128 <= main_#t~nondet13 && main_#t~nondet13 <= 127; [L137] ~st3 := main_#t~nondet13; [L138] havoc main_#t~nondet13; [L139] assume -128 <= main_#t~nondet14 && main_#t~nondet14 <= 127; [L140] ~send3 := main_#t~nondet14; [L141] havoc main_#t~nondet14; [L142] ~mode3 := main_#t~nondet15; [L143] havoc main_#t~nondet15; [L144] havoc init_#res; [L145] havoc init_~tmp~30; [L146] havoc init_~tmp~30; [L147] assume ~r1 % 256 == 0; [L148] assume ~id1 >= 0; [L149] assume ~st1 == 0; [L150] assume ~send1 == ~id1; [L151] assume ~mode1 % 256 == 0; [L152] assume ~id2 >= 0; [L153] assume ~st2 == 0; [L154] assume ~send2 == ~id2; [L155] assume ~mode2 % 256 == 0; [L156] assume ~id3 >= 0; [L157] assume ~st3 == 0; [L158] assume ~send3 == ~id3; [L159] assume ~mode3 % 256 == 0; [L160] assume ~id1 != ~id2; [L161] assume ~id1 != ~id3; [L162] assume ~id2 != ~id3; [L163] init_~tmp~30 := 1; [L164] init_#res := init_~tmp~30; [L165] main_#t~ret16 := init_#res; [L166] assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647; [L167] main_~i2~74 := main_#t~ret16; [L168] havoc main_#t~ret16; [L169] assume main_~i2~74 != 0; [L170] ~p1_old := ~nomsg; [L171] ~p1_new := ~nomsg; [L172] ~p2_old := ~nomsg; [L173] ~p2_new := ~nomsg; [L174] ~p3_old := ~nomsg; [L175] ~p3_new := ~nomsg; [L176] main_~i2~74 := 0; [L180] assume !false; [L181] havoc node1_#t~ite0, node1_~m1~9; [L182] havoc node1_~m1~9; [L183] node1_~m1~9 := ~nomsg; [L188] assume !(~mode1 % 256 != 0); [L189] assume ~send1 != ~nomsg && ~p1_new == ~nomsg; [L190] node1_#t~ite0 := ~send1; [L191] ~p1_new := (if node1_#t~ite0 % 256 <= 127 then node1_#t~ite0 % 256 else node1_#t~ite0 % 256 - 256); [L192] havoc node1_#t~ite0; [L193] ~mode1 := 1; [L204] havoc node2_#t~ite1, node2_~m2~16; [L205] havoc node2_~m2~16; [L206] node2_~m2~16 := ~nomsg; [L218] assume !(~mode2 % 256 != 0); [L219] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L220] node2_#t~ite1 := ~send2; [L221] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L222] havoc node2_#t~ite1; [L223] ~mode2 := 1; [L226] havoc node3_#t~ite2, node3_~m3~23; [L227] havoc node3_~m3~23; [L228] node3_~m3~23 := ~nomsg; [L233] assume ~mode3 % 256 != 0; [L234] node3_~m3~23 := ~p2_old; [L235] ~p2_old := ~nomsg; [L236] assume !(node3_~m3~23 != ~nomsg); [L237] ~mode3 := 0; [L248] ~p1_old := ~p1_new; [L249] ~p1_new := ~nomsg; [L250] ~p2_old := ~p2_new; [L251] ~p2_new := ~nomsg; [L252] ~p3_old := ~p3_new; [L253] ~p3_new := ~nomsg; [L254] havoc check_#res; [L255] havoc check_~tmp~64; [L256] havoc check_~tmp~64; [L257] assume ~st1 + ~st2 + ~st3 <= 1; [L265] assume !(~r1 % 256 >= 3); [L266] assume ~st1 + ~st2 + ~st3 == 0; [L275] assume !(~r1 % 256 < 3); [L276] assume !(~st1 + ~st2 + ~st3 == 1); [L277] check_~tmp~64 := 0; [L280] check_#res := check_~tmp~64; [L281] main_#t~ret17 := check_#res; [L282] assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647; [L283] main_~c1~74 := main_#t~ret17; [L284] havoc main_#t~ret17; [L285] assert_#in~arg := (if main_~c1~74 == 0 then 0 else 1); [L286] havoc assert_~arg; [L287] assert_~arg := assert_#in~arg; [L292] assume assert_~arg % 256 == 0; [L293] assume !false; [L299] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...