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.4.1.ufo.BOUNDED-8.pals.c_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:55:09,394 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:55:09,396 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:55:09,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:55:09,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:55:09,411 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:55:09,412 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:55:09,414 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:55:09,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:55:09,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:55:09,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:55:09,442 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 20:55:09,462 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:55:09,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:55:09,464 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:55:09,467 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:55:09,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:55:09,468 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:55:09,468 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:55:09,468 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:55:09,468 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:55:09,468 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:55:09,469 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:55:09,469 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:55:09,469 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:55:09,469 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:55:09,470 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:55:09,471 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:55:09,471 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:55:09,471 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:55:09,471 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:55:09,471 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:55:09,472 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:55:09,472 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:55:09,472 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:55:09,472 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:55:09,472 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:55:09,473 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:55:09,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:55:09,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:55:09,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:55:09,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:55:09,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:55:09,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:55:09,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:55:09,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:55:09,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:55:09,477 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:55:09,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:55:09,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:55:09,477 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:55:09,478 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:55:09,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:55:09,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:55:09,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:55:09,558 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:55:09,558 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:55:09,559 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl [2018-12-03 20:55:09,559 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl' [2018-12-03 20:55:09,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:55:09,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:55:09,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:55:09,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:55:09,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:55:09,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:55:09,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:55:09,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:55:09,687 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:55:09,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:55:09" (1/1) ... [2018-12-03 20:55:09,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:55:09,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:55:09,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:55:09,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:55:09,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.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 20:55:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:55:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:55:10,445 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:55:10,445 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:55:10,446 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:55:10 BoogieIcfgContainer [2018-12-03 20:55:10,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:55:10,447 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:55:10,447 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:55:10,448 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:55:10,449 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr.4.1.ufo.BOUNDED-8.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:55:10" (1/1) ... [2018-12-03 20:55:10,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:55:11,341 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:56:23,562 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:56:23,588 INFO L272 AbstractInterpreter]: Visited 23 different actions 773 times. Merged at 21 different actions 517 times. Widened at 20 different actions 362 times. Found 178 fixpoints after 17 different actions. Largest state had 0 variables. [2018-12-03 20:56:23,591 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:56:23,592 INFO L168 Benchmark]: Toolchain (without parser) took 73954.74 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 1.5 GB in the end (delta: -50.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-12-03 20:56:23,595 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 20:56:23,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.53 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 20:56:23,597 INFO L168 Benchmark]: Boogie Preprocessor took 42.96 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 20:56:23,598 INFO L168 Benchmark]: RCFGBuilder took 715.81 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 20:56:23,599 INFO L168 Benchmark]: Abstract Interpretation took 73144.30 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 1.5 GB in the end (delta: -82.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-12-03 20:56:23,606 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 46.53 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 42.96 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 715.81 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 73144.30 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 1.5 GB in the end (delta: -82.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 375]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L106] ~r1 := 0; [L107] ~p1_old := 0; [L108] ~p1_new := 0; [L109] ~id1 := 0; [L110] ~st1 := 0; [L111] ~mode1 := 0; [L112] ~p2_old := 0; [L113] ~p2_new := 0; [L114] ~id2 := 0; [L115] ~st2 := 0; [L116] ~mode2 := 0; [L117] ~p3_old := 0; [L118] ~p3_new := 0; [L119] ~id3 := 0; [L120] ~st3 := 0; [L121] ~mode3 := 0; [L122] ~p4_old := 0; [L123] ~p4_new := 0; [L124] ~id4 := 0; [L125] ~st4 := 0; [L126] ~mode4 := 0; [L127] ~nomsg := -1; [L128] ~send1 := 0; [L129] ~send2 := 0; [L130] ~send3 := 0; [L131] ~send4 := 0; [L132] havoc main_#res; [L133] havoc 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~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~ret21, main_#t~ret22, main_#t~post23, main_~c1~94, main_~i2~94; [L134] havoc main_~c1~94; [L135] havoc main_~i2~94; [L136] main_~c1~94 := 0; [L137] assume -128 <= main_#t~nondet4 && main_#t~nondet4 <= 127; [L138] ~r1 := main_#t~nondet4; [L139] havoc main_#t~nondet4; [L140] assume -128 <= main_#t~nondet5 && main_#t~nondet5 <= 127; [L141] ~id1 := main_#t~nondet5; [L142] havoc main_#t~nondet5; [L143] assume -128 <= main_#t~nondet6 && main_#t~nondet6 <= 127; [L144] ~st1 := main_#t~nondet6; [L145] havoc main_#t~nondet6; [L146] assume -128 <= main_#t~nondet7 && main_#t~nondet7 <= 127; [L147] ~send1 := main_#t~nondet7; [L148] havoc main_#t~nondet7; [L149] ~mode1 := main_#t~nondet8; [L150] havoc main_#t~nondet8; [L151] assume -128 <= main_#t~nondet9 && main_#t~nondet9 <= 127; [L152] ~id2 := main_#t~nondet9; [L153] havoc main_#t~nondet9; [L154] assume -128 <= main_#t~nondet10 && main_#t~nondet10 <= 127; [L155] ~st2 := main_#t~nondet10; [L156] havoc main_#t~nondet10; [L157] assume -128 <= main_#t~nondet11 && main_#t~nondet11 <= 127; [L158] ~send2 := main_#t~nondet11; [L159] havoc main_#t~nondet11; [L160] ~mode2 := main_#t~nondet12; [L161] havoc main_#t~nondet12; [L162] assume -128 <= main_#t~nondet13 && main_#t~nondet13 <= 127; [L163] ~id3 := main_#t~nondet13; [L164] havoc main_#t~nondet13; [L165] assume -128 <= main_#t~nondet14 && main_#t~nondet14 <= 127; [L166] ~st3 := main_#t~nondet14; [L167] havoc main_#t~nondet14; [L168] assume -128 <= main_#t~nondet15 && main_#t~nondet15 <= 127; [L169] ~send3 := main_#t~nondet15; [L170] havoc main_#t~nondet15; [L171] ~mode3 := main_#t~nondet16; [L172] havoc main_#t~nondet16; [L173] assume -128 <= main_#t~nondet17 && main_#t~nondet17 <= 127; [L174] ~id4 := main_#t~nondet17; [L175] havoc main_#t~nondet17; [L176] assume -128 <= main_#t~nondet18 && main_#t~nondet18 <= 127; [L177] ~st4 := main_#t~nondet18; [L178] havoc main_#t~nondet18; [L179] assume -128 <= main_#t~nondet19 && main_#t~nondet19 <= 127; [L180] ~send4 := main_#t~nondet19; [L181] havoc main_#t~nondet19; [L182] ~mode4 := main_#t~nondet20; [L183] havoc main_#t~nondet20; [L184] havoc init_#res; [L185] havoc init_~tmp~36; [L186] havoc init_~tmp~36; [L187] assume ~r1 == 0; [L188] assume ~id1 >= 0; [L189] assume ~st1 == 0; [L190] assume ~send1 == ~id1; [L191] assume ~mode1 % 256 == 0; [L192] assume ~id2 >= 0; [L193] assume ~st2 == 0; [L194] assume ~send2 == ~id2; [L195] assume ~mode2 % 256 == 0; [L196] assume ~id3 >= 0; [L197] assume ~st3 == 0; [L198] assume ~send3 == ~id3; [L199] assume ~mode3 % 256 == 0; [L200] assume ~id4 >= 0; [L201] assume ~st4 == 0; [L202] assume ~send4 == ~id4; [L203] assume ~mode4 % 256 == 0; [L204] assume ~id1 != ~id2; [L205] assume ~id1 != ~id3; [L206] assume ~id1 != ~id4; [L207] assume ~id2 != ~id3; [L208] assume ~id2 != ~id4; [L209] assume ~id3 != ~id4; [L210] init_~tmp~36 := 1; [L211] init_#res := init_~tmp~36; [L212] main_#t~ret21 := init_#res; [L213] assume -2147483648 <= main_#t~ret21 && main_#t~ret21 <= 2147483647; [L214] main_~i2~94 := main_#t~ret21; [L215] havoc main_#t~ret21; [L216] assume main_~i2~94 != 0; [L217] ~p1_old := ~nomsg; [L218] ~p1_new := ~nomsg; [L219] ~p2_old := ~nomsg; [L220] ~p2_new := ~nomsg; [L221] ~p3_old := ~nomsg; [L222] ~p3_new := ~nomsg; [L223] ~p4_old := ~nomsg; [L224] ~p4_new := ~nomsg; [L225] main_~i2~94 := 0; [L229] assume !!(main_~i2~94 < 8); [L230] havoc node1_#t~ite0, node1_~m1~7; [L231] havoc node1_~m1~7; [L232] node1_~m1~7 := ~nomsg; [L237] assume ~mode1 % 256 != 0; [L238] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L239] node1_~m1~7 := ~p4_old; [L240] ~p4_old := ~nomsg; [L241] assume !(node1_~m1~7 != ~nomsg); [L242] ~mode1 := 0; [L253] havoc node2_#t~ite1, node2_~m2~15; [L254] havoc node2_~m2~15; [L255] node2_~m2~15 := ~nomsg; [L267] assume !(~mode2 % 256 != 0); [L268] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L269] node2_#t~ite1 := ~send2; [L270] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L271] havoc node2_#t~ite1; [L272] ~mode2 := 1; [L275] havoc node3_#t~ite2, node3_~m3~22; [L276] havoc node3_~m3~22; [L277] node3_~m3~22 := ~nomsg; [L282] assume ~mode3 % 256 != 0; [L283] node3_~m3~22 := ~p2_old; [L284] ~p2_old := ~nomsg; [L285] assume !(node3_~m3~22 != ~nomsg); [L286] ~mode3 := 0; [L297] havoc node4_#t~ite3, node4_~m4~29; [L298] havoc node4_~m4~29; [L299] node4_~m4~29 := ~nomsg; [L312] assume ~mode4 % 256 != 0; [L313] node4_~m4~29 := ~p3_old; [L314] ~p3_old := ~nomsg; [L315] assume !(node4_~m4~29 != ~nomsg); [L316] ~mode4 := 0; [L319] ~p1_old := ~p1_new; [L320] ~p1_new := ~nomsg; [L321] ~p2_old := ~p2_new; [L322] ~p2_new := ~nomsg; [L323] ~p3_old := ~p3_new; [L324] ~p3_new := ~nomsg; [L325] ~p4_old := ~p4_new; [L326] ~p4_new := ~nomsg; [L327] havoc check_#res; [L328] havoc check_~tmp~84; [L329] havoc check_~tmp~84; [L330] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L338] assume !(~r1 >= 4); [L339] assume ~st1 + ~st2 + ~st3 + ~st4 == 0; [L344] assume ~r1 < 4; [L345] check_~tmp~84 := 1; [L353] check_#res := check_~tmp~84; [L354] main_#t~ret22 := check_#res; [L355] assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; [L356] main_~c1~94 := main_#t~ret22; [L357] havoc main_#t~ret22; [L358] assert_#in~arg := (if main_~c1~94 == 0 then 0 else 1); [L359] havoc assert_~arg; [L360] assert_~arg := assert_#in~arg; [L369] assume !(assert_~arg % 256 == 0); [L370] main_#t~post23 := main_~i2~94; [L371] main_~i2~94 := main_#t~post23 + 1; [L372] havoc main_#t~post23; [L229] assume !!(main_~i2~94 < 8); [L230] havoc node1_#t~ite0, node1_~m1~7; [L231] havoc node1_~m1~7; [L232] node1_~m1~7 := ~nomsg; [L237] assume ~mode1 % 256 != 0; [L238] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L239] node1_~m1~7 := ~p4_old; [L240] ~p4_old := ~nomsg; [L241] assume !(node1_~m1~7 != ~nomsg); [L242] ~mode1 := 0; [L253] havoc node2_#t~ite1, node2_~m2~15; [L254] havoc node2_~m2~15; [L255] node2_~m2~15 := ~nomsg; [L267] assume !(~mode2 % 256 != 0); [L268] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L269] node2_#t~ite1 := ~send2; [L270] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L271] havoc node2_#t~ite1; [L272] ~mode2 := 1; [L275] havoc node3_#t~ite2, node3_~m3~22; [L276] havoc node3_~m3~22; [L277] node3_~m3~22 := ~nomsg; [L282] assume ~mode3 % 256 != 0; [L283] node3_~m3~22 := ~p2_old; [L284] ~p2_old := ~nomsg; [L285] assume !(node3_~m3~22 != ~nomsg); [L286] ~mode3 := 0; [L297] havoc node4_#t~ite3, node4_~m4~29; [L298] havoc node4_~m4~29; [L299] node4_~m4~29 := ~nomsg; [L312] assume ~mode4 % 256 != 0; [L313] node4_~m4~29 := ~p3_old; [L314] ~p3_old := ~nomsg; [L315] assume !(node4_~m4~29 != ~nomsg); [L316] ~mode4 := 0; [L319] ~p1_old := ~p1_new; [L320] ~p1_new := ~nomsg; [L321] ~p2_old := ~p2_new; [L322] ~p2_new := ~nomsg; [L323] ~p3_old := ~p3_new; [L324] ~p3_new := ~nomsg; [L325] ~p4_old := ~p4_new; [L326] ~p4_new := ~nomsg; [L327] havoc check_#res; [L328] havoc check_~tmp~84; [L329] havoc check_~tmp~84; [L330] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L335] assume ~r1 >= 4; [L348] assume !(~r1 < 4); [L349] assume !(~st1 + ~st2 + ~st3 + ~st4 == 1); [L350] check_~tmp~84 := 0; [L353] check_#res := check_~tmp~84; [L354] main_#t~ret22 := check_#res; [L355] assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; [L356] main_~c1~94 := main_#t~ret22; [L357] havoc main_#t~ret22; [L358] assert_#in~arg := (if main_~c1~94 == 0 then 0 else 1); [L359] havoc assert_~arg; [L360] assert_~arg := assert_#in~arg; [L365] assume assert_~arg % 256 == 0; [L366] assume !false; [L375] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...