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.3.1.ufo.BOUNDED-6.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:54:38,114 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:54:38,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:54:38,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:54:38,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:54:38,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:54:38,131 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:54:38,133 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:54:38,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:54:38,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:54:38,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:54:38,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 20:54:38,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 20:54:38,154 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 20:54:38,155 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 20:54:38,156 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 20:54:38,157 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 20:54:38,158 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 20:54:38,158 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 20:54:38,159 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-12-03 20:54:38,161 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 20:54:38,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:54:38,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:54:38,176 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:54:38,177 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:54:38,177 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:54:38,177 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:54:38,177 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:54:38,178 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:54:38,178 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:54:38,178 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:54:38,178 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:54:38,178 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:54:38,179 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:54:38,179 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:54:38,179 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:54:38,180 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:54:38,180 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:54:38,180 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:54:38,180 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:54:38,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:54:38,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:54:38,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:54:38,181 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:54:38,181 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:54:38,182 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:54:38,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:54:38,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:54:38,182 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:54:38,182 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:54:38,183 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:54:38,183 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:54:38,183 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:54:38,183 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:54:38,183 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:54:38,184 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:54:38,184 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:54:38,184 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:54:38,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:54:38,184 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:54:38,185 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:54:38,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:54:38,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:54:38,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:54:38,236 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:54:38,237 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:54:38,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl [2018-12-03 20:54:38,238 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl' [2018-12-03 20:54:38,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:54:38,299 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:54:38,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:54:38,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:54:38,301 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:54:38,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:54:38,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:54:38,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:54:38,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:54:38,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (1/1) ... [2018-12-03 20:54:38,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:54:38,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:54:38,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:54:38,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:54:38,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:54:38" (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 20:54:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:54:38,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:54:39,033 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:54:39,034 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:54:39,035 INFO L202 PluginConnector]: Adding new model pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:54:39 BoogieIcfgContainer [2018-12-03 20:54:39,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:54:39,036 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:54:39,036 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:54:39,036 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:54:39,037 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr.3.1.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:54:39" (1/1) ... [2018-12-03 20:54:39,114 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:54:39,765 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:55:06,647 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:55:06,684 INFO L272 AbstractInterpreter]: Visited 20 different actions 520 times. Merged at 18 different actions 340 times. Widened at 17 different actions 233 times. Found 108 fixpoints after 14 different actions. Largest state had 0 variables. [2018-12-03 20:55:06,690 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:55:06,691 INFO L168 Benchmark]: Toolchain (without parser) took 28392.59 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: -489.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-12-03 20:55:06,694 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 20:55:06,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 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 20:55:06,695 INFO L168 Benchmark]: Boogie Preprocessor took 36.32 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 20:55:06,696 INFO L168 Benchmark]: RCFGBuilder took 650.44 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-03 20:55:06,697 INFO L168 Benchmark]: Abstract Interpretation took 27653.97 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -520.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-12-03 20:55:06,705 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 0.21 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 46.86 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 36.32 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 650.44 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 27653.97 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -520.9 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: 304]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L85] ~r1 := 0; [L86] ~p1_old := 0; [L87] ~p1_new := 0; [L88] ~id1 := 0; [L89] ~st1 := 0; [L90] ~mode1 := 0; [L91] ~p2_old := 0; [L92] ~p2_new := 0; [L93] ~id2 := 0; [L94] ~st2 := 0; [L95] ~mode2 := 0; [L96] ~p3_old := 0; [L97] ~p3_new := 0; [L98] ~id3 := 0; [L99] ~st3 := 0; [L100] ~mode3 := 0; [L101] ~nomsg := -1; [L102] ~send1 := 0; [L103] ~send2 := 0; [L104] ~send3 := 0; [L105] havoc main_#res; [L106] 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_#t~post18, main_~c1~73, main_~i2~73; [L107] havoc main_~c1~73; [L108] havoc main_~i2~73; [L109] main_~c1~73 := 0; [L110] assume -128 <= main_#t~nondet3 && main_#t~nondet3 <= 127; [L111] ~r1 := main_#t~nondet3; [L112] havoc main_#t~nondet3; [L113] assume -128 <= main_#t~nondet4 && main_#t~nondet4 <= 127; [L114] ~id1 := main_#t~nondet4; [L115] havoc main_#t~nondet4; [L116] assume -128 <= main_#t~nondet5 && main_#t~nondet5 <= 127; [L117] ~st1 := main_#t~nondet5; [L118] havoc main_#t~nondet5; [L119] assume -128 <= main_#t~nondet6 && main_#t~nondet6 <= 127; [L120] ~send1 := main_#t~nondet6; [L121] havoc main_#t~nondet6; [L122] ~mode1 := main_#t~nondet7; [L123] havoc main_#t~nondet7; [L124] assume -128 <= main_#t~nondet8 && main_#t~nondet8 <= 127; [L125] ~id2 := main_#t~nondet8; [L126] havoc main_#t~nondet8; [L127] assume -128 <= main_#t~nondet9 && main_#t~nondet9 <= 127; [L128] ~st2 := main_#t~nondet9; [L129] havoc main_#t~nondet9; [L130] assume -128 <= main_#t~nondet10 && main_#t~nondet10 <= 127; [L131] ~send2 := main_#t~nondet10; [L132] havoc main_#t~nondet10; [L133] ~mode2 := main_#t~nondet11; [L134] havoc main_#t~nondet11; [L135] assume -128 <= main_#t~nondet12 && main_#t~nondet12 <= 127; [L136] ~id3 := main_#t~nondet12; [L137] havoc main_#t~nondet12; [L138] assume -128 <= main_#t~nondet13 && main_#t~nondet13 <= 127; [L139] ~st3 := main_#t~nondet13; [L140] havoc main_#t~nondet13; [L141] assume -128 <= main_#t~nondet14 && main_#t~nondet14 <= 127; [L142] ~send3 := main_#t~nondet14; [L143] havoc main_#t~nondet14; [L144] ~mode3 := main_#t~nondet15; [L145] havoc main_#t~nondet15; [L146] havoc init_#res; [L147] havoc init_~tmp~29; [L148] havoc init_~tmp~29; [L149] assume ~r1 == 0; [L150] assume ~id1 >= 0; [L151] assume ~st1 == 0; [L152] assume ~send1 == ~id1; [L153] assume ~mode1 % 256 == 0; [L154] assume ~id2 >= 0; [L155] assume ~st2 == 0; [L156] assume ~send2 == ~id2; [L157] assume ~mode2 % 256 == 0; [L158] assume ~id3 >= 0; [L159] assume ~st3 == 0; [L160] assume ~send3 == ~id3; [L161] assume ~mode3 % 256 == 0; [L162] assume ~id1 != ~id2; [L163] assume ~id1 != ~id3; [L164] assume ~id2 != ~id3; [L165] init_~tmp~29 := 1; [L166] init_#res := init_~tmp~29; [L167] main_#t~ret16 := init_#res; [L168] assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647; [L169] main_~i2~73 := main_#t~ret16; [L170] havoc main_#t~ret16; [L171] assume main_~i2~73 != 0; [L172] ~p1_old := ~nomsg; [L173] ~p1_new := ~nomsg; [L174] ~p2_old := ~nomsg; [L175] ~p2_new := ~nomsg; [L176] ~p3_old := ~nomsg; [L177] ~p3_new := ~nomsg; [L178] main_~i2~73 := 0; [L182] assume !!(main_~i2~73 < 6); [L183] havoc node1_#t~ite0, node1_~m1~7; [L184] havoc node1_~m1~7; [L185] node1_~m1~7 := ~nomsg; [L198] assume ~mode1 % 256 != 0; [L199] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L200] node1_~m1~7 := ~p3_old; [L201] ~p3_old := ~nomsg; [L202] assume !(node1_~m1~7 != ~nomsg); [L203] ~mode1 := 0; [L206] havoc node2_#t~ite1, node2_~m2~15; [L207] havoc node2_~m2~15; [L208] node2_~m2~15 := ~nomsg; [L220] assume !(~mode2 % 256 != 0); [L221] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L222] node2_#t~ite1 := ~send2; [L223] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L224] havoc node2_#t~ite1; [L225] ~mode2 := 1; [L228] havoc node3_#t~ite2, node3_~m3~22; [L229] havoc node3_~m3~22; [L230] node3_~m3~22 := ~nomsg; [L235] assume ~mode3 % 256 != 0; [L236] node3_~m3~22 := ~p2_old; [L237] ~p2_old := ~nomsg; [L238] assume !(node3_~m3~22 != ~nomsg); [L239] ~mode3 := 0; [L250] ~p1_old := ~p1_new; [L251] ~p1_new := ~nomsg; [L252] ~p2_old := ~p2_new; [L253] ~p2_new := ~nomsg; [L254] ~p3_old := ~p3_new; [L255] ~p3_new := ~nomsg; [L256] havoc check_#res; [L257] havoc check_~tmp~63; [L258] havoc check_~tmp~63; [L259] assume ~st1 + ~st2 + ~st3 <= 1; [L267] assume !(~r1 >= 3); [L268] assume ~st1 + ~st2 + ~st3 == 0; [L273] assume ~r1 < 3; [L274] check_~tmp~63 := 1; [L282] check_#res := check_~tmp~63; [L283] main_#t~ret17 := check_#res; [L284] assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647; [L285] main_~c1~73 := main_#t~ret17; [L286] havoc main_#t~ret17; [L287] assert_#in~arg := (if main_~c1~73 == 0 then 0 else 1); [L288] havoc assert_~arg; [L289] assert_~arg := assert_#in~arg; [L298] assume !(assert_~arg % 256 == 0); [L299] main_#t~post18 := main_~i2~73; [L300] main_~i2~73 := main_#t~post18 + 1; [L301] havoc main_#t~post18; [L182] assume !!(main_~i2~73 < 6); [L183] havoc node1_#t~ite0, node1_~m1~7; [L184] havoc node1_~m1~7; [L185] node1_~m1~7 := ~nomsg; [L198] assume ~mode1 % 256 != 0; [L199] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L200] node1_~m1~7 := ~p3_old; [L201] ~p3_old := ~nomsg; [L202] assume !(node1_~m1~7 != ~nomsg); [L203] ~mode1 := 0; [L206] havoc node2_#t~ite1, node2_~m2~15; [L207] havoc node2_~m2~15; [L208] node2_~m2~15 := ~nomsg; [L220] assume !(~mode2 % 256 != 0); [L221] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L222] node2_#t~ite1 := ~send2; [L223] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L224] havoc node2_#t~ite1; [L225] ~mode2 := 1; [L228] havoc node3_#t~ite2, node3_~m3~22; [L229] havoc node3_~m3~22; [L230] node3_~m3~22 := ~nomsg; [L235] assume ~mode3 % 256 != 0; [L236] node3_~m3~22 := ~p2_old; [L237] ~p2_old := ~nomsg; [L238] assume !(node3_~m3~22 != ~nomsg); [L239] ~mode3 := 0; [L250] ~p1_old := ~p1_new; [L251] ~p1_new := ~nomsg; [L252] ~p2_old := ~p2_new; [L253] ~p2_new := ~nomsg; [L254] ~p3_old := ~p3_new; [L255] ~p3_new := ~nomsg; [L256] havoc check_#res; [L257] havoc check_~tmp~63; [L258] havoc check_~tmp~63; [L259] assume ~st1 + ~st2 + ~st3 <= 1; [L264] assume ~r1 >= 3; [L277] assume !(~r1 < 3); [L278] assume !(~st1 + ~st2 + ~st3 == 1); [L279] check_~tmp~63 := 0; [L282] check_#res := check_~tmp~63; [L283] main_#t~ret17 := check_#res; [L284] assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647; [L285] main_~c1~73 := main_#t~ret17; [L286] havoc main_#t~ret17; [L287] assert_#in~arg := (if main_~c1~73 == 0 then 0 else 1); [L288] havoc assert_~arg; [L289] assert_~arg := assert_#in~arg; [L294] assume assert_~arg % 256 == 0; [L295] assume !false; [L304] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...