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/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:21:51,988 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:21:51,990 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:21:52,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:21:52,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:21:52,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:21:52,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:21:52,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:21:52,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:21:52,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:21:52,012 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:21:52,038 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 20:21:52,056 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:21:52,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:21:52,058 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:21:52,058 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:21:52,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:21:52,058 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:21:52,058 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:21:52,059 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:21:52,059 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:21:52,059 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:21:52,059 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:21:52,059 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:21:52,060 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:21:52,060 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:21:52,061 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:21:52,061 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:21:52,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:21:52,061 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:21:52,062 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:21:52,062 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:21:52,062 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:21:52,062 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:21:52,063 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:21:52,063 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:21:52,063 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:21:52,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:21:52,063 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:21:52,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:21:52,064 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:21:52,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:21:52,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:21:52,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:21:52,065 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:21:52,065 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:21:52,065 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:21:52,065 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:21:52,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:21:52,066 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:21:52,066 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:21:52,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:21:52,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:21:52,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:21:52,150 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:21:52,151 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:21:52,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl [2018-12-03 20:21:52,153 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl' [2018-12-03 20:21:52,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:21:52,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:21:52,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:21:52,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:21:52,252 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:21:52,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:21:52,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:21:52,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:21:52,306 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:21:52,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (1/1) ... [2018-12-03 20:21:52,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:21:52,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:21:52,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:21:52,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:21:52,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:21:52" (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 20:21:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:21:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:21:53,039 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:21:53,039 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:21:53,040 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:21:53 BoogieIcfgContainer [2018-12-03 20:21:53,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:21:53,041 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:21:53,041 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:21:53,042 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:21:53,043 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:21:53" (1/1) ... [2018-12-03 20:21:53,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:21:54,134 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:22:11,351 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:22:11,379 INFO L272 AbstractInterpreter]: Visited 21 different actions 164 times. Merged at 19 different actions 105 times. Widened at 5 different actions 6 times. Found 29 fixpoints after 11 different actions. Largest state had 0 variables. [2018-12-03 20:22:11,384 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:22:11,386 INFO L168 Benchmark]: Toolchain (without parser) took 19136.57 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 1.4 GB in the end (delta: 30.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-12-03 20:22:11,392 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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 20:22:11,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.13 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 20:22:11,394 INFO L168 Benchmark]: Boogie Preprocessor took 59.03 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 20:22:11,394 INFO L168 Benchmark]: RCFGBuilder took 674.85 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 20:22:11,396 INFO L168 Benchmark]: Abstract Interpretation took 18343.66 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 1.4 GB in the end (delta: -11.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-12-03 20:22:11,403 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 0.25 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 54.13 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 59.03 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 674.85 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. * Abstract Interpretation took 18343.66 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 1.4 GB in the end (delta: -11.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 384]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L120] ~r1 := 0; [L121] ~p1_old := 0; [L122] ~p1_new := 0; [L123] ~id1 := 0; [L124] ~st1 := 0; [L125] ~mode1 := 0; [L126] ~alive1 := 0; [L127] ~p2_old := 0; [L128] ~p2_new := 0; [L129] ~id2 := 0; [L130] ~st2 := 0; [L131] ~mode2 := 0; [L132] ~alive2 := 0; [L133] ~p3_old := 0; [L134] ~p3_new := 0; [L135] ~id3 := 0; [L136] ~st3 := 0; [L137] ~mode3 := 0; [L138] ~alive3 := 0; [L139] ~p4_old := 0; [L140] ~p4_new := 0; [L141] ~id4 := 0; [L142] ~st4 := 0; [L143] ~mode4 := 0; [L144] ~alive4 := 0; [L145] ~nomsg := -1; [L146] ~send1 := 0; [L147] ~send2 := 0; [L148] ~send3 := 0; [L149] ~send4 := 0; [L150] havoc main_#res; [L151] havoc 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~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~ret28, main_#t~ret29, main_~c1~108, main_~i2~108; [L152] havoc main_~c1~108; [L153] havoc main_~i2~108; [L154] main_~c1~108 := 0; [L155] ~r1 := main_#t~nondet7; [L156] havoc main_#t~nondet7; [L157] assume -128 <= main_#t~nondet8 && main_#t~nondet8 <= 127; [L158] ~id1 := main_#t~nondet8; [L159] havoc main_#t~nondet8; [L160] assume -128 <= main_#t~nondet9 && main_#t~nondet9 <= 127; [L161] ~st1 := main_#t~nondet9; [L162] havoc main_#t~nondet9; [L163] assume -128 <= main_#t~nondet10 && main_#t~nondet10 <= 127; [L164] ~send1 := main_#t~nondet10; [L165] havoc main_#t~nondet10; [L166] ~mode1 := main_#t~nondet11; [L167] havoc main_#t~nondet11; [L168] ~alive1 := main_#t~nondet12; [L169] havoc main_#t~nondet12; [L170] assume -128 <= main_#t~nondet13 && main_#t~nondet13 <= 127; [L171] ~id2 := main_#t~nondet13; [L172] havoc main_#t~nondet13; [L173] assume -128 <= main_#t~nondet14 && main_#t~nondet14 <= 127; [L174] ~st2 := main_#t~nondet14; [L175] havoc main_#t~nondet14; [L176] assume -128 <= main_#t~nondet15 && main_#t~nondet15 <= 127; [L177] ~send2 := main_#t~nondet15; [L178] havoc main_#t~nondet15; [L179] ~mode2 := main_#t~nondet16; [L180] havoc main_#t~nondet16; [L181] ~alive2 := main_#t~nondet17; [L182] havoc main_#t~nondet17; [L183] assume -128 <= main_#t~nondet18 && main_#t~nondet18 <= 127; [L184] ~id3 := main_#t~nondet18; [L185] havoc main_#t~nondet18; [L186] assume -128 <= main_#t~nondet19 && main_#t~nondet19 <= 127; [L187] ~st3 := main_#t~nondet19; [L188] havoc main_#t~nondet19; [L189] assume -128 <= main_#t~nondet20 && main_#t~nondet20 <= 127; [L190] ~send3 := main_#t~nondet20; [L191] havoc main_#t~nondet20; [L192] ~mode3 := main_#t~nondet21; [L193] havoc main_#t~nondet21; [L194] ~alive3 := main_#t~nondet22; [L195] havoc main_#t~nondet22; [L196] assume -128 <= main_#t~nondet23 && main_#t~nondet23 <= 127; [L197] ~id4 := main_#t~nondet23; [L198] havoc main_#t~nondet23; [L199] assume -128 <= main_#t~nondet24 && main_#t~nondet24 <= 127; [L200] ~st4 := main_#t~nondet24; [L201] havoc main_#t~nondet24; [L202] assume -128 <= main_#t~nondet25 && main_#t~nondet25 <= 127; [L203] ~send4 := main_#t~nondet25; [L204] havoc main_#t~nondet25; [L205] ~mode4 := main_#t~nondet26; [L206] havoc main_#t~nondet26; [L207] ~alive4 := main_#t~nondet27; [L208] havoc main_#t~nondet27; [L209] havoc init_#res; [L210] havoc init_~tmp~51; [L211] havoc init_~tmp~51; [L212] assume ~r1 % 256 == 0; [L213] assume ~alive1 % 256 + ~alive2 % 256 + ~alive3 % 256 + ~alive4 % 256 >= 1; [L214] assume ~id1 >= 0; [L215] assume ~st1 == 0; [L216] assume ~send1 == ~id1; [L217] assume ~mode1 % 256 == 0; [L218] assume ~id2 >= 0; [L219] assume ~st2 == 0; [L220] assume ~send2 == ~id2; [L221] assume ~mode2 % 256 == 0; [L222] assume ~id3 >= 0; [L223] assume ~st3 == 0; [L224] assume ~send3 == ~id3; [L225] assume ~mode3 % 256 == 0; [L226] assume ~id4 >= 0; [L227] assume ~st4 == 0; [L228] assume ~send4 == ~id4; [L229] assume ~mode4 % 256 == 0; [L230] assume ~id1 != ~id2; [L231] assume ~id1 != ~id3; [L232] assume ~id1 != ~id4; [L233] assume ~id2 != ~id3; [L234] assume ~id2 != ~id4; [L235] assume ~id3 != ~id4; [L236] init_~tmp~51 := 1; [L237] init_#res := init_~tmp~51; [L238] main_#t~ret28 := init_#res; [L239] assume -2147483648 <= main_#t~ret28 && main_#t~ret28 <= 2147483647; [L240] main_~i2~108 := main_#t~ret28; [L241] havoc main_#t~ret28; [L242] assume main_~i2~108 != 0; [L243] ~p1_old := ~nomsg; [L244] ~p1_new := ~nomsg; [L245] ~p2_old := ~nomsg; [L246] ~p2_new := ~nomsg; [L247] ~p3_old := ~nomsg; [L248] ~p3_new := ~nomsg; [L249] ~p4_old := ~nomsg; [L250] ~p4_new := ~nomsg; [L251] main_~i2~108 := 0; [L255] assume !false; [L256] havoc node1_#t~ite0, node1_~m1~7; [L257] havoc node1_~m1~7; [L258] node1_~m1~7 := ~nomsg; [L272] assume !(~mode1 % 256 != 0); [L273] assume !(~alive1 % 256 != 0); [L274] ~mode1 := 1; [L277] havoc node2_#t~ite1, node2_#t~ite2, node2_~m2~18; [L278] havoc node2_~m2~18; [L279] node2_~m2~18 := ~nomsg; [L291] assume !(~mode2 % 256 != 0); [L292] assume ~alive2 % 256 != 0; [L293] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L294] node2_#t~ite1 := ~send2; [L295] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L296] havoc node2_#t~ite1; [L297] ~mode2 := 1; [L300] havoc node3_#t~ite3, node3_#t~ite4, node3_~m3~29; [L301] havoc node3_~m3~29; [L302] node3_~m3~29 := ~nomsg; [L314] assume !(~mode3 % 256 != 0); [L315] assume !(~alive3 % 256 != 0); [L316] assume !(~send3 != ~id3); [L317] ~mode3 := 1; [L320] havoc node4_#t~ite5, node4_#t~ite6, node4_~m4~40; [L321] havoc node4_~m4~40; [L322] node4_~m4~40 := ~nomsg; [L334] assume !(~mode4 % 256 != 0); [L335] assume !(~alive4 % 256 != 0); [L336] assume !(~send4 != ~id4); [L337] ~mode4 := 1; [L340] ~p1_old := ~p1_new; [L341] ~p1_new := ~nomsg; [L342] ~p2_old := ~p2_new; [L343] ~p2_new := ~nomsg; [L344] ~p3_old := ~p3_new; [L345] ~p3_new := ~nomsg; [L346] ~p4_old := ~p4_new; [L347] ~p4_new := ~nomsg; [L348] havoc check_#res; [L349] havoc check_~tmp~101; [L350] havoc check_~tmp~101; [L351] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L356] assume ~r1 % 256 < 4; [L357] check_~tmp~101 := 1; [L365] check_#res := check_~tmp~101; [L366] main_#t~ret29 := check_#res; [L367] assume -2147483648 <= main_#t~ret29 && main_#t~ret29 <= 2147483647; [L368] main_~c1~108 := main_#t~ret29; [L369] havoc main_#t~ret29; [L370] assert_#in~arg := (if main_~c1~108 == 0 then 0 else 1); [L371] havoc assert_~arg; [L372] assert_~arg := assert_#in~arg; [L381] assume !(assert_~arg % 256 == 0); [L255] assume !false; [L256] havoc node1_#t~ite0, node1_~m1~7; [L257] havoc node1_~m1~7; [L258] node1_~m1~7 := ~nomsg; [L263] assume ~mode1 % 256 != 0; [L264] assume !(~r1 % 256 == 255); [L265] ~r1 := ~r1 % 256 + 1; [L266] node1_~m1~7 := ~p4_old; [L267] ~p4_old := ~nomsg; [L268] assume !(node1_~m1~7 != ~nomsg); [L269] ~mode1 := 0; [L277] havoc node2_#t~ite1, node2_#t~ite2, node2_~m2~18; [L278] havoc node2_~m2~18; [L279] node2_~m2~18 := ~nomsg; [L291] assume !(~mode2 % 256 != 0); [L292] assume ~alive2 % 256 != 0; [L293] assume ~send2 != ~nomsg && ~p2_new == ~nomsg; [L294] node2_#t~ite1 := ~send2; [L295] ~p2_new := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256); [L296] havoc node2_#t~ite1; [L297] ~mode2 := 1; [L300] havoc node3_#t~ite3, node3_#t~ite4, node3_~m3~29; [L301] havoc node3_~m3~29; [L302] node3_~m3~29 := ~nomsg; [L307] assume ~mode3 % 256 != 0; [L308] node3_~m3~29 := ~p2_old; [L309] ~p2_old := ~nomsg; [L310] assume !(node3_~m3~29 != ~nomsg); [L311] ~mode3 := 0; [L320] havoc node4_#t~ite5, node4_#t~ite6, node4_~m4~40; [L321] havoc node4_~m4~40; [L322] node4_~m4~40 := ~nomsg; [L334] assume !(~mode4 % 256 != 0); [L335] assume !(~alive4 % 256 != 0); [L336] assume !(~send4 != ~id4); [L337] ~mode4 := 1; [L340] ~p1_old := ~p1_new; [L341] ~p1_new := ~nomsg; [L342] ~p2_old := ~p2_new; [L343] ~p2_new := ~nomsg; [L344] ~p3_old := ~p3_new; [L345] ~p3_new := ~nomsg; [L346] ~p4_old := ~p4_new; [L347] ~p4_new := ~nomsg; [L348] havoc check_#res; [L349] havoc check_~tmp~101; [L350] havoc check_~tmp~101; [L351] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L360] assume !(~r1 % 256 < 4); [L361] assume !(~st1 + ~st2 + ~st3 + ~st4 == 1); [L362] check_~tmp~101 := 0; [L365] check_#res := check_~tmp~101; [L366] main_#t~ret29 := check_#res; [L367] assume -2147483648 <= main_#t~ret29 && main_#t~ret29 <= 2147483647; [L368] main_~c1~108 := main_#t~ret29; [L369] havoc main_#t~ret29; [L370] assert_#in~arg := (if main_~c1~108 == 0 then 0 else 1); [L371] havoc assert_~arg; [L372] assert_~arg := assert_#in~arg; [L377] assume assert_~arg % 256 == 0; [L378] assume !false; [L384] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...