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_compound_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 19:51:49,033 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 19:51:49,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 19:51:49,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 19:51:49,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 19:51:49,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 19:51:49,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 19:51:49,053 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 19:51:49,055 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 19:51:49,056 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 19:51:49,057 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 19:51:49,083 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-03 19:51:49,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 19:51:49,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 19:51:49,107 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 19:51:49,107 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 19:51:49,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 19:51:49,107 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 19:51:49,108 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 19:51:49,108 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 19:51:49,109 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 19:51:49,109 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 19:51:49,109 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 19:51:49,109 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 19:51:49,110 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 19:51:49,110 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 19:51:49,110 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 19:51:49,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 19:51:49,113 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 19:51:49,113 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 19:51:49,113 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 19:51:49,113 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 19:51:49,113 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 19:51:49,114 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 19:51:49,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 19:51:49,114 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 19:51:49,114 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 19:51:49,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 19:51:49,116 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 19:51:49,116 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 19:51:49,117 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 19:51:49,117 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 19:51:49,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 19:51:49,118 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 19:51:49,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 19:51:49,118 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 19:51:49,119 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 19:51:49,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 19:51:49,119 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 19:51:49,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 19:51:49,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 19:51:49,121 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 19:51:49,121 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 19:51:49,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 19:51:49,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 19:51:49,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 19:51:49,193 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 19:51:49,193 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 19:51:49,194 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl [2018-12-03 19:51:49,194 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl' [2018-12-03 19:51:49,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 19:51:49,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 19:51:49,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 19:51:49,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 19:51:49,262 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 19:51:49,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 19:51:49,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 19:51:49,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 19:51:49,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 19:51:49,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:49,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 19:51:49,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 19:51:49,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 19:51:49,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 19:51:49,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:51:49" (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 19:51:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 19:51:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 19:51:49,944 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 19:51:49,944 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 19:51:49,945 INFO L202 PluginConnector]: Adding new model pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:51:49 BoogieIcfgContainer [2018-12-03 19:51:49,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 19:51:49,946 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 19:51:49,946 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 19:51:49,948 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 19:51:49,949 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:51:49" (1/1) ... [2018-12-03 19:51:50,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 19:51:51,062 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 19:51:51,106 INFO L272 AbstractInterpreter]: Visited 20 different actions 106 times. Merged at 17 different actions 58 times. Widened at 11 different actions 11 times. Found 25 fixpoints after 12 different actions. Largest state had 0 variables. [2018-12-03 19:51:51,112 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 19:51:51,116 INFO L168 Benchmark]: Toolchain (without parser) took 1856.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-12-03 19:51:51,119 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 19:51:51,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.52 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 19:51:51,121 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 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 19:51:51,125 INFO L168 Benchmark]: RCFGBuilder took 605.89 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 19:51:51,128 INFO L168 Benchmark]: Abstract Interpretation took 1166.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-12-03 19:51:51,135 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 0.22 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 42.52 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 34.60 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 605.89 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 1166.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. 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_~c1~72, main_~i2~72; [L107] havoc main_~c1~72; [L108] havoc main_~i2~72; [L109] main_~c1~72 := 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~28; [L148] havoc init_~tmp~28; [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~28 := 1; [L166] init_#res := init_~tmp~28; [L167] main_#t~ret16 := init_#res; [L168] assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647; [L169] main_~i2~72 := main_#t~ret16; [L170] havoc main_#t~ret16; [L171] assume main_~i2~72 != 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_~i2~72 := 0; [L182] assume !!(main_~i2~72 < 6); [L183] havoc node1_#t~ite0, node1_~m1~7; [L184] havoc node1_~m1~7; [L185] node1_~m1~7 := ~nomsg; [L190] assume !(~mode1 % 256 != 0); [L191] assume ~send1 != ~nomsg && ~p1_new == ~nomsg; [L192] node1_#t~ite0 := ~send1; [L193] ~p1_new := (if node1_#t~ite0 % 256 <= 127 then node1_#t~ite0 % 256 else node1_#t~ite0 % 256 - 256); [L194] havoc node1_#t~ite0; [L195] ~mode1 := 1; [L206] havoc node2_#t~ite1, node2_~m2~14; [L207] havoc node2_~m2~14; [L208] node2_~m2~14 := ~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_~m3~21; [L229] havoc node3_~m3~21; [L230] node3_~m3~21 := ~nomsg; [L242] assume !(~mode3 % 256 != 0); [L243] assume ~send3 != ~nomsg && ~p3_new == ~nomsg; [L244] node3_#t~ite2 := ~send3; [L245] ~p3_new := (if node3_#t~ite2 % 256 <= 127 then node3_#t~ite2 % 256 else node3_#t~ite2 % 256 - 256); [L246] havoc node3_#t~ite2; [L247] ~mode3 := 1; [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~62; [L258] havoc check_~tmp~62; [L259] assume ~st1 + ~st2 + ~st3 <= 1; [L267] assume !(~r1 >= 3); [L268] assume ~st1 + ~st2 + ~st3 == 0; [L273] assume ~r1 < 3; [L274] check_~tmp~62 := 1; [L282] check_#res := check_~tmp~62; [L283] main_#t~ret17 := check_#res; [L284] assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647; [L285] main_~c1~72 := main_#t~ret17; [L286] havoc main_#t~ret17; [L287] assert_#in~arg := (if main_~c1~72 == 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_~i2~72; [L300] main_~i2~72 := main_#t~post18 + 1; [L301] havoc main_#t~post18; [L182] assume !!(main_~i2~72 < 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_~m2~14; [L207] havoc node2_~m2~14; [L208] node2_~m2~14 := ~nomsg; [L213] assume ~mode2 % 256 != 0; [L214] node2_~m2~14 := ~p1_old; [L215] ~p1_old := ~nomsg; [L216] assume !(node2_~m2~14 != ~nomsg); [L217] ~mode2 := 0; [L228] havoc node3_#t~ite2, node3_~m3~21; [L229] havoc node3_~m3~21; [L230] node3_~m3~21 := ~nomsg; [L235] assume ~mode3 % 256 != 0; [L236] node3_~m3~21 := ~p2_old; [L237] ~p2_old := ~nomsg; [L238] assume !(node3_~m3~21 != ~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~62; [L258] havoc check_~tmp~62; [L259] assume ~st1 + ~st2 + ~st3 <= 1; [L267] assume !(~r1 >= 3); [L268] assume ~st1 + ~st2 + ~st3 == 0; [L277] assume !(~r1 < 3); [L278] assume !(~st1 + ~st2 + ~st3 == 1); [L279] check_~tmp~62 := 0; [L282] check_#res := check_~tmp~62; [L283] main_#t~ret17 := check_#res; [L284] assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647; [L285] main_~c1~72 := main_#t~ret17; [L286] havoc main_#t~ret17; [L287] assert_#in~arg := (if main_~c1~72 == 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...