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-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:52:57,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:52:57,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:52:57,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:52:57,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:52:57,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:52:57,519 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:52:57,521 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:52:57,522 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:52:57,523 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:52:57,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 20:52:57,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 20:52:57,525 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 20:52:57,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 20:52:57,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 20:52:57,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 20:52:57,529 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 20:52:57,531 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 20:52:57,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 20:52:57,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 20:52:57,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 20:52:57,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 20:52:57,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 20:52:57,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 20:52:57,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 20:52:57,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 20:52:57,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 20:52:57,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 20:52:57,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 20:52:57,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 20:52:57,554 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 20:52:57,555 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-12-03 20:52:57,558 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 20:52:57,578 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:52:57,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:52:57,580 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:52:57,580 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:52:57,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:52:57,583 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:52:57,583 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:52:57,583 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:52:57,583 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:52:57,584 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 20:52:57,584 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:52:57,584 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:52:57,584 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:52:57,584 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:52:57,585 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:52:57,586 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:52:57,586 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:52:57,586 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:52:57,586 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:52:57,586 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:52:57,586 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:52:57,587 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:52:57,587 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:52:57,587 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:52:57,587 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:52:57,587 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:52:57,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:52:57,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:52:57,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:52:57,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:52:57,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:52:57,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:52:57,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:52:57,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:52:57,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:52:57,590 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:52:57,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:52:57,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:52:57,591 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:52:57,591 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:52:57,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:52:57,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:52:57,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:52:57,651 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:52:57,651 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:52:57,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl [2018-12-03 20:52:57,653 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl' [2018-12-03 20:52:57,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:52:57,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:52:57,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:52:57,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:52:57,718 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:52:57,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:52:57,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:52:57,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:52:57,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:52:57,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (1/1) ... [2018-12-03 20:52:57,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:52:57,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:52:57,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:52:57,830 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:52:57,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:52:57" (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 20:52:57,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 20:52:57,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 20:52:58,475 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 20:52:58,475 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:52:58,476 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:52:58 BoogieIcfgContainer [2018-12-03 20:52:58,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:52:58,477 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:52:58,477 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:52:58,477 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:52:58,478 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:52:58" (1/1) ... [2018-12-03 20:52:58,538 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:52:59,513 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 20:53:44,083 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:53:44,135 INFO L272 AbstractInterpreter]: Visited 21 different actions 500 times. Merged at 19 different actions 342 times. Widened at 18 different actions 214 times. Found 94 fixpoints after 13 different actions. Largest state had 0 variables. [2018-12-03 20:53:44,142 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:53:44,144 INFO L168 Benchmark]: Toolchain (without parser) took 46428.22 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 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 815.9 MB. Max. memory is 7.1 GB. [2018-12-03 20:53:44,147 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 20:53:44,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.06 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 20:53:44,154 INFO L168 Benchmark]: Boogie Preprocessor took 55.38 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 20:53:44,157 INFO L168 Benchmark]: RCFGBuilder took 649.07 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 20:53:44,159 INFO L168 Benchmark]: Abstract Interpretation took 45665.27 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 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 784.2 MB. Max. memory is 7.1 GB. [2018-12-03 20:53:44,166 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 0.19 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 53.06 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 55.38 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 649.07 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 45665.27 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 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 784.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 388]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L121] ~r1 := 0; [L122] ~p1_old := 0; [L123] ~p1_new := 0; [L124] ~id1 := 0; [L125] ~st1 := 0; [L126] ~mode1 := 0; [L127] ~alive1 := 0; [L128] ~p2_old := 0; [L129] ~p2_new := 0; [L130] ~id2 := 0; [L131] ~st2 := 0; [L132] ~mode2 := 0; [L133] ~alive2 := 0; [L134] ~p3_old := 0; [L135] ~p3_new := 0; [L136] ~id3 := 0; [L137] ~st3 := 0; [L138] ~mode3 := 0; [L139] ~alive3 := 0; [L140] ~p4_old := 0; [L141] ~p4_new := 0; [L142] ~id4 := 0; [L143] ~st4 := 0; [L144] ~mode4 := 0; [L145] ~alive4 := 0; [L146] ~nomsg := -1; [L147] ~send1 := 0; [L148] ~send2 := 0; [L149] ~send3 := 0; [L150] ~send4 := 0; [L151] havoc main_#res; [L152] 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_#t~post30, main_~c1~107, main_~i2~107; [L153] havoc main_~c1~107; [L154] havoc main_~i2~107; [L155] main_~c1~107 := 0; [L156] assume -128 <= main_#t~nondet7 && main_#t~nondet7 <= 127; [L157] ~r1 := main_#t~nondet7; [L158] havoc main_#t~nondet7; [L159] assume -128 <= main_#t~nondet8 && main_#t~nondet8 <= 127; [L160] ~id1 := main_#t~nondet8; [L161] havoc main_#t~nondet8; [L162] assume -128 <= main_#t~nondet9 && main_#t~nondet9 <= 127; [L163] ~st1 := main_#t~nondet9; [L164] havoc main_#t~nondet9; [L165] assume -128 <= main_#t~nondet10 && main_#t~nondet10 <= 127; [L166] ~send1 := main_#t~nondet10; [L167] havoc main_#t~nondet10; [L168] ~mode1 := main_#t~nondet11; [L169] havoc main_#t~nondet11; [L170] ~alive1 := main_#t~nondet12; [L171] havoc main_#t~nondet12; [L172] assume -128 <= main_#t~nondet13 && main_#t~nondet13 <= 127; [L173] ~id2 := main_#t~nondet13; [L174] havoc main_#t~nondet13; [L175] assume -128 <= main_#t~nondet14 && main_#t~nondet14 <= 127; [L176] ~st2 := main_#t~nondet14; [L177] havoc main_#t~nondet14; [L178] assume -128 <= main_#t~nondet15 && main_#t~nondet15 <= 127; [L179] ~send2 := main_#t~nondet15; [L180] havoc main_#t~nondet15; [L181] ~mode2 := main_#t~nondet16; [L182] havoc main_#t~nondet16; [L183] ~alive2 := main_#t~nondet17; [L184] havoc main_#t~nondet17; [L185] assume -128 <= main_#t~nondet18 && main_#t~nondet18 <= 127; [L186] ~id3 := main_#t~nondet18; [L187] havoc main_#t~nondet18; [L188] assume -128 <= main_#t~nondet19 && main_#t~nondet19 <= 127; [L189] ~st3 := main_#t~nondet19; [L190] havoc main_#t~nondet19; [L191] assume -128 <= main_#t~nondet20 && main_#t~nondet20 <= 127; [L192] ~send3 := main_#t~nondet20; [L193] havoc main_#t~nondet20; [L194] ~mode3 := main_#t~nondet21; [L195] havoc main_#t~nondet21; [L196] ~alive3 := main_#t~nondet22; [L197] havoc main_#t~nondet22; [L198] assume -128 <= main_#t~nondet23 && main_#t~nondet23 <= 127; [L199] ~id4 := main_#t~nondet23; [L200] havoc main_#t~nondet23; [L201] assume -128 <= main_#t~nondet24 && main_#t~nondet24 <= 127; [L202] ~st4 := main_#t~nondet24; [L203] havoc main_#t~nondet24; [L204] assume -128 <= main_#t~nondet25 && main_#t~nondet25 <= 127; [L205] ~send4 := main_#t~nondet25; [L206] havoc main_#t~nondet25; [L207] ~mode4 := main_#t~nondet26; [L208] havoc main_#t~nondet26; [L209] ~alive4 := main_#t~nondet27; [L210] havoc main_#t~nondet27; [L211] havoc init_#res; [L212] havoc init_~tmp~50; [L213] havoc init_~tmp~50; [L214] assume ~r1 == 0; [L215] assume ~alive1 % 256 + ~alive2 % 256 + ~alive3 % 256 + ~alive4 % 256 >= 1; [L216] assume ~id1 >= 0; [L217] assume ~st1 == 0; [L218] assume ~send1 == ~id1; [L219] assume ~mode1 % 256 == 0; [L220] assume ~id2 >= 0; [L221] assume ~st2 == 0; [L222] assume ~send2 == ~id2; [L223] assume ~mode2 % 256 == 0; [L224] assume ~id3 >= 0; [L225] assume ~st3 == 0; [L226] assume ~send3 == ~id3; [L227] assume ~mode3 % 256 == 0; [L228] assume ~id4 >= 0; [L229] assume ~st4 == 0; [L230] assume ~send4 == ~id4; [L231] assume ~mode4 % 256 == 0; [L232] assume ~id1 != ~id2; [L233] assume ~id1 != ~id3; [L234] assume ~id1 != ~id4; [L235] assume ~id2 != ~id3; [L236] assume ~id2 != ~id4; [L237] assume ~id3 != ~id4; [L238] init_~tmp~50 := 1; [L239] init_#res := init_~tmp~50; [L240] main_#t~ret28 := init_#res; [L241] assume -2147483648 <= main_#t~ret28 && main_#t~ret28 <= 2147483647; [L242] main_~i2~107 := main_#t~ret28; [L243] havoc main_#t~ret28; [L244] assume main_~i2~107 != 0; [L245] ~p1_old := ~nomsg; [L246] ~p1_new := ~nomsg; [L247] ~p2_old := ~nomsg; [L248] ~p2_new := ~nomsg; [L249] ~p3_old := ~nomsg; [L250] ~p3_new := ~nomsg; [L251] ~p4_old := ~nomsg; [L252] ~p4_new := ~nomsg; [L253] main_~i2~107 := 0; [L257] assume !!(main_~i2~107 < 8); [L258] havoc node1_#t~ite0, node1_~m1~7; [L259] havoc node1_~m1~7; [L260] node1_~m1~7 := ~nomsg; [L265] assume ~mode1 % 256 != 0; [L266] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L267] node1_~m1~7 := ~p4_old; [L268] ~p4_old := ~nomsg; [L269] assume !(node1_~m1~7 != ~nomsg); [L270] ~mode1 := 0; [L278] havoc node2_#t~ite1, node2_#t~ite2, node2_~m2~17; [L279] havoc node2_~m2~17; [L280] node2_~m2~17 := ~nomsg; [L292] assume !(~mode2 % 256 != 0); [L293] assume !(~alive2 % 256 != 0); [L294] assume !(~send2 != ~id2); [L295] ~mode2 := 1; [L298] havoc node3_#t~ite3, node3_#t~ite4, node3_~m3~28; [L299] havoc node3_~m3~28; [L300] node3_~m3~28 := ~nomsg; [L305] assume ~mode3 % 256 != 0; [L306] node3_~m3~28 := ~p2_old; [L307] ~p2_old := ~nomsg; [L308] assume !(node3_~m3~28 != ~nomsg); [L309] ~mode3 := 0; [L318] havoc node4_#t~ite5, node4_#t~ite6, node4_~m4~39; [L319] havoc node4_~m4~39; [L320] node4_~m4~39 := ~nomsg; [L332] assume !(~mode4 % 256 != 0); [L333] assume ~alive4 % 256 != 0; [L334] assume ~send4 != ~nomsg && ~p4_new == ~nomsg; [L335] node4_#t~ite5 := ~send4; [L336] ~p4_new := (if node4_#t~ite5 % 256 <= 127 then node4_#t~ite5 % 256 else node4_#t~ite5 % 256 - 256); [L337] havoc node4_#t~ite5; [L338] ~mode4 := 1; [L341] ~p1_old := ~p1_new; [L342] ~p1_new := ~nomsg; [L343] ~p2_old := ~p2_new; [L344] ~p2_new := ~nomsg; [L345] ~p3_old := ~p3_new; [L346] ~p3_new := ~nomsg; [L347] ~p4_old := ~p4_new; [L348] ~p4_new := ~nomsg; [L349] havoc check_#res; [L350] havoc check_~tmp~100; [L351] havoc check_~tmp~100; [L352] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L357] assume ~r1 < 4; [L358] check_~tmp~100 := 1; [L366] check_#res := check_~tmp~100; [L367] main_#t~ret29 := check_#res; [L368] assume -2147483648 <= main_#t~ret29 && main_#t~ret29 <= 2147483647; [L369] main_~c1~107 := main_#t~ret29; [L370] havoc main_#t~ret29; [L371] assert_#in~arg := (if main_~c1~107 == 0 then 0 else 1); [L372] havoc assert_~arg; [L373] assert_~arg := assert_#in~arg; [L382] assume !(assert_~arg % 256 == 0); [L383] main_#t~post30 := main_~i2~107; [L384] main_~i2~107 := main_#t~post30 + 1; [L385] havoc main_#t~post30; [L257] assume !!(main_~i2~107 < 8); [L258] havoc node1_#t~ite0, node1_~m1~7; [L259] havoc node1_~m1~7; [L260] node1_~m1~7 := ~nomsg; [L265] assume ~mode1 % 256 != 0; [L266] ~r1 := (if (~r1 + 1) % 256 <= 127 then (~r1 + 1) % 256 else (~r1 + 1) % 256 - 256); [L267] node1_~m1~7 := ~p4_old; [L268] ~p4_old := ~nomsg; [L269] assume !(node1_~m1~7 != ~nomsg); [L270] ~mode1 := 0; [L278] havoc node2_#t~ite1, node2_#t~ite2, node2_~m2~17; [L279] havoc node2_~m2~17; [L280] node2_~m2~17 := ~nomsg; [L292] assume !(~mode2 % 256 != 0); [L293] assume !(~alive2 % 256 != 0); [L294] assume !(~send2 != ~id2); [L295] ~mode2 := 1; [L298] havoc node3_#t~ite3, node3_#t~ite4, node3_~m3~28; [L299] havoc node3_~m3~28; [L300] node3_~m3~28 := ~nomsg; [L305] assume ~mode3 % 256 != 0; [L306] node3_~m3~28 := ~p2_old; [L307] ~p2_old := ~nomsg; [L308] assume !(node3_~m3~28 != ~nomsg); [L309] ~mode3 := 0; [L318] havoc node4_#t~ite5, node4_#t~ite6, node4_~m4~39; [L319] havoc node4_~m4~39; [L320] node4_~m4~39 := ~nomsg; [L332] assume !(~mode4 % 256 != 0); [L333] assume ~alive4 % 256 != 0; [L334] assume ~send4 != ~nomsg && ~p4_new == ~nomsg; [L335] node4_#t~ite5 := ~send4; [L336] ~p4_new := (if node4_#t~ite5 % 256 <= 127 then node4_#t~ite5 % 256 else node4_#t~ite5 % 256 - 256); [L337] havoc node4_#t~ite5; [L338] ~mode4 := 1; [L341] ~p1_old := ~p1_new; [L342] ~p1_new := ~nomsg; [L343] ~p2_old := ~p2_new; [L344] ~p2_new := ~nomsg; [L345] ~p3_old := ~p3_new; [L346] ~p3_new := ~nomsg; [L347] ~p4_old := ~p4_new; [L348] ~p4_new := ~nomsg; [L349] havoc check_#res; [L350] havoc check_~tmp~100; [L351] havoc check_~tmp~100; [L352] assume ~st1 + ~st2 + ~st3 + ~st4 <= 1; [L361] assume !(~r1 < 4); [L362] assume !(~st1 + ~st2 + ~st3 + ~st4 == 1); [L363] check_~tmp~100 := 0; [L366] check_#res := check_~tmp~100; [L367] main_#t~ret29 := check_#res; [L368] assume -2147483648 <= main_#t~ret29 && main_#t~ret29 <= 2147483647; [L369] main_~c1~107 := main_#t~ret29; [L370] havoc main_#t~ret29; [L371] assert_#in~arg := (if main_~c1~107 == 0 then 0 else 1); [L372] havoc assert_~arg; [L373] assert_~arg := assert_#in~arg; [L378] assume assert_~arg % 256 == 0; [L379] assume !false; [L388] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...